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1. Determination of particulate polycyclic aromatic hydrocarbons in ambient air by gas chromatography-mass spectrometry after molecularly imprinted polymer extraction

Author:
Maria Chiara Pietrogrande; Giorgia Demaria; Mara Russo
Source:
Journal of environmental sciences (China) 2023 v.124 pp. 644-654
ISSN:
1001-0742
Subject:
air; air quality; benzene; gas chromatography-mass spectrometry; molecular imprinting; particulates; polyacrylic acid; quantitative analysis; China
Abstract:
... A solid phase extraction procedure (SPE) is described for the quantitative analysis of polycyclic aromatic hydrocarbons (PAHs) in atmospheric particulate matter (PM), as ubiquitous environmental pollutants routinely measured in air quality monitoring. A SPE cartridge was used based on a molecular imprinted polymer (MIP-SPE) properly tailored for selective retention of PAHs with 4 and more benzene ...
DOI:
10.1016/j.jes.2021.11.021

2. (Z,E)‐α‐Farnesene – sex pheromone component of female click beetle Selatosomus aeripennis destructor with intra‐ and inter‐sexual communication function

Author:
Regine Gries; Wim van Herk; Santosh K. Alamsetti; Haley Catton; Scott Meers; Jennifer Otani; Gerhard Gries
Source:
Entomologia experimentalis et applicata 2022 v.170 no.4 pp. 344-351
ISSN:
0013-8703
Subject:
Elateridae; agricultural land; females; gas chromatography-mass spectrometry; headspace analysis; males; pests; sex pheromones; Alberta
Abstract:
... Sex pheromones are known for only a few major click beetle (Coleoptera: Elateridae) pests in North America. These pheromones could be used to monitor, as well as control, adult beetles. Our objective was to identify the sex pheromone of female Selatosomus aeripennis destructor (Brown), a predominant elaterid pest species in farmland in the Canadian Prairie provinces. Headspace volatiles from a gro ...
DOI:
10.1111/eea.13142

3. 1-Pentadecene, a volatile biomarker for the detection of Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae) infested brown rice under different temperatures

Author:
Xuemei Tian; Jiarong Hao; Fenghua Wu; Hao Hu; Guoxin Zhou; Xingquan Liu; Tao Zhang
Source:
Journal of stored products research 2022 v.97 pp. 101981
ISSN:
0022-474X
Subject:
Tribolium castaneum; biomarkers; brown rice; gas chromatography-mass spectrometry; insect infestations; pests; research; stored grain
Abstract:
... Tribolium castaneum, a secondary pest that feeds on processed stored grains, can cause serious damage on stored grain. To reduce the loss of stored grain caused by pest infestation, monitoring and early detection of insects are essential. volatile compounds arising from insects or insect-infested stored products can be appropriate biomarkers. In this study, gas chromatography–mass spectrometry (HS ...
DOI:
10.1016/j.jspr.2022.101981

4. 1H NMR spectrometry for methanol quantification in apple wines and ciders as optimised by comparison to SIDA-HS-GC-MS

Author:
Raphael Convertini; Claus Patz; Keshav Kumar; Bianca May; Wilfried Andlauer; Ralf Schweiggert
Source:
Food chemistry 2022 v.387 pp. 132912
ISSN:
0308-8146
Subject:
adulterated products; apples; byproducts; chemical species; food chemistry; gas chromatography-mass spectrometry; isotope dilution technique; methanol; neurotoxins; nuclear magnetic resonance spectroscopy; pectins; stable isotopes; wines
Abstract:
... Methanol, a hepato- and neurotoxic compound, is present in apple-based beverages as a by-product of the enzymatic degradation of pectin. Stable isotope dilution assay (SIDA) employing gas chromatography-mass spectrometry (GC–MS) is the state-of-the-art method for methanol determination in beverages. Despite higher initial investment costs, quantitative ¹H NMR spectroscopy (qNMR) is a simpler and f ...
DOI:
10.1016/j.foodchem.2022.132912

5. 2,3-Butanediol from the leachates of pine needles induces the resistance of Panax notoginseng to the leaf pathogen Alternaria panax

Author:
Tian-Yao Li; Chen Ye; Yi-Jie Zhang; Jun-Xing Zhang; Min Yang; Xia-Hong He; Xin-Yue Mei; Yi-Xiang Liu; You-Yong Zhu; Hui-Chuan Huang; Shu-Sheng Zhu
Source:
Plant diversity 2022 pp. -
ISSN:
2468-2659
Subject:
Alternaria panax; Panax notoginseng; Pinus armandii; RNA; biosynthesis; disease control; foliar diseases; gas chromatography-mass spectrometry; immunity; jasmonic acid; mitogen-activated protein kinase; pathogens; sequence analysis; species diversity; systemic acquired resistance; transcription factors
Abstract:
... Compared with the use of monocultures in the field, cultivation of medicinal herbs in forests is an effective strategy to alleviate disease. Chemical interactions between herbs and trees play an important role in disease suppression in forests. We evaluated the ability of leachates from needles of Pinus armandii to induce resistance in Panax notoginseng leaves, identified the components via gas ch ...
DOI:
10.1016/j.pld.2022.02.003

6. 30 years trends of microplastic pollution: Mass-quantitative analysis of archived mussel samples from the North and Baltic Seas

Author:
Maurits Halbach; Miriam Vogel; Juliane K. Tammen; Heinz Rüdel; Jan Koschorreck; Barbara M. Scholz-Böttcher
Source:
Science of the total environment 2022 v.826 pp. 154179
ISSN:
0048-9697
Subject:
data collection; environment; evolution; gas chromatography-mass spectrometry; microplastics; mussels; pollution; pyrolysis; sediments; time series analysis; Baltic Sea; North Sea
Abstract:
... Microplastics (MP) are ubiquitous throughout the environment as a result of an ongoing, increasing, but also lavish use, of plastics over time and its inherent persistence. In contrast, there are almost no data that allow drawing conclusions about the evolution of plastic pollution in the environment over the past decades. This study investigates the MP load in blue mussels from the North and Balt ...
DOI:
10.1016/j.scitotenv.2022.154179

7. A Comparative Metabolomic Analysis Reveals the Nutritional and Therapeutic Potential of Grains of the Traditional Rice Variety Mappillai Samba

Author:
Veera Ranjani Rajagopalan; Sudha Manickam; Raveendran Muthurajan
Source:
Plants 2022 v.11 no.4 pp. -
ISSN:
2223-7747
Subject:
Oryza sativa; biosynthesis; flavonoids; gas chromatography-mass spectrometry; lifestyle; metabolites; metabolome; metabolomics; phenylpropanoids; phytosterols; polyamines; rice; staple foods; therapeutics; ubiquinones; Africa; Asia
Abstract:
... Rice (Oryza sativa L.) is the staple food of the majority of the population, particularly in Asia and Africa. Enriching rice with nutritional and therapeutic contents can improve its benefits for patients with lifestyle disorders. This study aimed to profile the phytochemical contents of the therapeutically known traditional rice Mappillai Samba against white rice CBMAS 14065 using non-targeted ga ...
DOI:
10.3390/plants11040543

8. A bimetallic synergistic effect on the atomic scale of defect-enriched NiV-layered double hydroxide nanosheets for electrochemical phenol hydroxylation

Author:
Guangyao Li; Yanqi Xu; Hong Pan; Xiangli Xie; Rongrong Chen; Di Wu; Linjiang Wang
Source:
Journal of materials chemistry A 2022 v.10 no.12 pp. 6748-6761
ISSN:
2050-7496
Subject:
X-radiation; X-ray absorption spectroscopy; absorption; aromatic hydrocarbons; coprecipitation; electrochemistry; electron transfer; energy; gas chromatography-mass spectrometry; high performance liquid chromatography; hydroquinone; hydroxylation; nanosheets; nuclear magnetic resonance spectroscopy; phenol; synergism; thermodynamics
Abstract:
... Vanadium-based catalysts have long been applied in arene Csp²–H bond activation and functionalization, but enormous challenges remain in terms of high activity, selectivity, and stability. Herein, defect-enriched NiV-layered double hydroxide nanosheets (NiV-LDH-NS) with a bimetallic synergistic effect were prepared by a one-step co-precipitation strategy as an electrocatalyst for phenol hydroxylat ...
DOI:
10.1039/d1ta09412b

9. A brief study on the effects of storage conditions on sexual lubricant components in the presence of a biological fluid

Author:
Santana A.L. Thomas; Brooke Baumgarten; Danielle Green; Candice Bridge
Source:
Forensic science international 2022 v.335 pp. 111273
ISSN:
0379-0738
Subject:
ambient temperature; chemical analysis; forensic sciences; gas chromatography-mass spectrometry; lubricants; secretion; statistical analysis
Abstract:
... This study illustrated the effects of environmental conditions (i.e., temperature) on the components of a condom lubricant in the presence of vaginal secretion. Understanding the effects of storage is important for the short-term handling of sexual assault kits, that may contain post-coital swabs, prior to chemical analysis. This preliminary three-day investigation utilized gas chromatography-mass ...
DOI:
10.1016/j.forsciint.2022.111273

10. A chemometric strategy to automatically screen selected ion monitoring ions for gas chromatography–mass spectrometry-based pseudotargeted metabolomics

Author:
Juan-Juan Zhao; Xiao-Meng Guo; Xing-Cai Wang; Yang Zhang; Xing-Ling Ma; Meng-Han Ma; Jia-Ni Zhang; Jia-Nan Liu; Yong-Jie Yu; Yi Lv; Yuan-Bin She
Source:
Journal of chromatography 2022 v.1664 pp. 462801
ISSN:
0021-9673
Subject:
chemometrics; data collection; experimental design; gas chromatography-mass spectrometry; metabolomics; quality control; user interface
Abstract:
... The pseudotargeted metabolomics based on gas chromatography–mass spectrometry (GC–MS) has the advantage of filtering out artifacts originating from sample treatment and accurately quantifying underlying compounds in the analyzed samples. However, this technique faces the problem of selecting high-quality selective ions for performing selected ion monitoring (SIM) on instruments. In this work, we p ...
DOI:
10.1016/j.chroma.2021.462801

11. A comparative HS-SPME/GC-MS-based metabolomics approach for discriminating selected japonica rice varieties from different regions of China in raw and cooked form

Author:
Qiyan Zhao; Jinzhong Xi; Dan Xu; Yamei Jin; Fengfeng Wu; Qunyi Tong; Yun Yin; Xueming Xu
Source:
Food chemistry 2022 v.385 pp. 132701
ISSN:
0308-8146
Subject:
benzoic acid; discriminant analysis; food chemistry; gas chromatography-mass spectrometry; headspace analysis; indoles; least squares; lipid peroxidation; lipoxygenases; metabolomics; rice; solid phase microextraction; terpenoids; China
Abstract:
... Japonica rice is widely planted in different regions of China. Rice of different geographical origins may have substantially different economic values. In this study, An untargeted metabolomics based approach using headspace solid-phase microextraction coupled to gas chromatography-mass spectrometry (HS-SPME/GC-MS) was applied to distinguish 27 japonica rice varieties originated from South, Northe ...
DOI:
10.1016/j.foodchem.2022.132701

12. A computational technique for prediction and optimization of VCR engine performance and emission parameters fuelled with Trichosanthes cucumerina biodiesel using RSM with desirability function approach

Author:
Rajayokkiam Manimaran; Thangavelu Mohanraj; Moorthy Venkatesan; Rajamohan Ganesan; Dhinesh Balasubramanian
Source:
Energy 2022 v.254 pp. 124293
ISSN:
0360-5442
Subject:
Fourier transform infrared spectroscopy; Trichosanthes cucumerina; biodiesel; diesel engines; diesel fuel; energy; energy use and consumption; gas chromatography-mass spectrometry; opacity; pollution; prediction; regression analysis; response surface methodology; smoke; temperature
Abstract:
... Global concerns about pollution, rapidly diminishing fossil fuels, energy accessibility, and sustainability have prompted researchers to focus on alternative energy sources. Unlike fossil fuels, second-generation biofuels are considered a viable and promising substitute for the existing resources. This study utilizes waste-to-energy to produce biodiesel from trichosanthes cucumerina waste seeds. B ...
DOI:
10.1016/j.energy.2022.124293

13. A fast and efficient method for the efficient recovery of crude oil from spent hydrodesulphurization catalyst

Author:
Jing Gao; Meng Hao; Tao Wu; Yujiang Li
Source:
Colloids and surfaces 2022 v.642 pp. 128650
ISSN:
0927-7757
Subject:
acetone; carbon; catalysts; chemical structure; combustion; contact angle; energy; gas chromatography-mass spectrometry; heat; hexane; methylene chloride; oils; particle size; petroleum; rheometers; solvents; temperature; viscosity; xylene
Abstract:
... The deoiling process is a critical issue in catalyst regeneration and recovery of precious metals from spent catalysts. This study developed a fast and efficient method to recover crude oil from spent hydrodesulphurization (HDS) catalysts. We employed four solvents (p-xylene, acetone, dichloromethane, and n-hexane) with different polar and aromatic properties to remove crude oil from the spent cat ...
DOI:
10.1016/j.colsurfa.2022.128650

14. A floating chamber system for VOC sea-to-air flux measurement near the sea surface

Author:
Royston Uning; Mohd Talib Latif; Haris Hafizal Abd Hamid; Suhaimi Suratman
Source:
Environmental monitoring and assessment 2022 v.194 no.8 pp. 531
ISSN:
0167-6369
Subject:
adsorbents; coasts; cost effectiveness; desorption; gas chromatography-mass spectrometry; isoprene; ozone; volatile organic compounds; Malaysia
Abstract:
... Volatile organic compounds (VOCs) form ozone (O₃) and secondary organic aerosols (SOAs) in the atmosphere under favourable conditions. Biogenic VOC levels in the marine atmosphere are significantly lower compared with levels in the atmosphere above terrestrial ecosystems. However, much less is known about the marine biogenic VOC sea-to-air flux, specifically at the sea surface level. Therefore, he ...
DOI:
10.1007/s10661-022-10237-y

15. A gas chromatography-mass spectrometry method for quantifying squalane and squalene in aerosol emissions of electronic cigarette, or vaping, products

Author:
Elizabeth A. Cowan; Hang Tran; Naudia Gray; Jose J. Perez; Clifford Watson; Benjamin C. Blount; Liza Valentín-Blasini
Source:
Talanta 2022 v.238 pp. 122985
ISSN:
0039-9140
Subject:
aerosols; air; cannabidiol; electronic equipment; gas chromatography-mass spectrometry; lungs; nicotine; particulates; quantitative analysis; squalene; terpenoids; tetrahydrocannabinol; toxicity
Abstract:
... Numerous chemicals of unknown inhalational toxicity have been measured in electronic cigarette, or vaping, products (EVPs). In addition, little is known about the liquid-to-aerosol transmission and deliveries of these chemicals, including oil-like terpenes such as squalene (SQE) and squalane (SQA). To provide information on the aerosol deliveries of these compounds from EVPs, we developed and vali ...
DOI:
10.1016/j.talanta.2021.122985

16. A glass bead semi-hydroponic system for intact maize root exudate analysis and phenotyping

Author:
Martha G. Lopez-Guerrero; Peng Wang; Felicia Phares; Daniel P. Schachtman; Sophie Alvarez; Karin van Dijk
Source:
Plant methods 2022 v.18 no.1 pp. 25
ISSN:
1746-4811
Subject:
computer software; corn; dimboa; exudation; gas chromatography-mass spectrometry; genotype; glass; hydroponics; liquid chromatography; metabolites; metabolomics; microirrigation; phenotype; plant growth; plant hormones; root exudates; root systems; roots; soil; tandem mass spectrometry
Abstract:
... BACKGROUND: Although there have been numerous studies describing plant growth systems for root exudate collection, a common limitation is that these systems require disruption of the plant root system to facilitate exudate collection. Here, we present a newly designed semi-hydroponic system that uses glass beads as solid support to simulate soil impedance, which combined with drip irrigation, faci ...
DOI:
10.1186/s13007-022-00856-4

17. A green alternative QuEChERS developed based on green deep eutectic solvents coupled with gas chromatography-mass spectrometry for the analysis of pesticides in tea samples

Author:
Sara Soltani; Hassan Sereshti
Source:
Food chemistry 2022 v.380 pp. 132181
ISSN:
0308-8146
Subject:
European Union; chemical species; food chemistry; gas chromatography-mass spectrometry; graphene; magnetism; sorbents
Abstract:
... A novel green modified QuEChERS based on green deep eutectic solvents (DES) followed by GC–MS was developed to analyze pesticides in tea samples. Among different tested DESs for the extraction of analytes, ChCl:PEG (1:4) DES showed the highest efficiency. Three-dimensional magnetic graphene was functionalized by ChCl:urea (1:2) natural DES, characterized and used as sorbent in the in-syringe dispe ...
DOI:
10.1016/j.foodchem.2022.132181

18. A new core–shell magnetic mesoporous surface molecularly imprinted composite and its application as an MSPE sorbent for determination of phthalate esters

Author:
Yuxin Liu; Wei Song; Dianbing Zhou; Fang Han; Xiaoming Gong; Pan Pan
Source:
RSC advances 2022 v.12 no.12 pp. 7253-7261
ISSN:
2046-2069
Subject:
adsorption; alcohols; gas chromatography-mass spectrometry; liquids; magnetism; molecular imprinting; phthalates; polymers; porous media; silicon; solid phase extraction; sorbents; sorption isotherms
Abstract:
... In this study, a new core–shell magnetic mesoporous surface molecularly imprinted polymer (Fe₃O₄@SiO₂@mSiO₂-MIPs) which has specific adsorption and rapid adsorption rate for phthalate esters (PAEs) was prepared by a convenient method. Based on this composite as a magnetic solid phase extraction (MSPE) material, a rapid, efficient and sensitive matrix dispersion magnetic solid-phase extraction gas ...
DOI:
10.1039/d1ra09405j

19. A new method of simultaneous determination of atmospheric amines in gaseous and particulate phases by gas chromatography-mass spectrometry

Author:
Yifei Chen; Qinhao Lin; Guiying Li; Taicheng An
Source:
Journal of environmental sciences (China) 2022 v.114 pp. 401-411
ISSN:
1001-0742
Subject:
absorption; adsorption; derivatization; dimethylamine; gas chromatography-mass spectrometry; methylamine; phosphoric acid; standard deviation; water uptake; China
Abstract:
... As more attention is being paid to the characteristics of atmospheric amines, there is also an increasing demand for reliable detection technologies. Herein, a method was developed for simultaneous detection of atmospheric amines in both gaseous and particulate phases using gas chromatography-mass spectrometry (GC-MS). The amine samples were collected with and without phosphoric acid filters, foll ...
DOI:
10.1016/j.jes.2021.09.027

20. A novel approach to discriminate the volatilome of Vitis vinifera berries by selected ion flow tube mass Spectrometry analysis and chemometrics

Author:
Thomas Baerenzung dit Baron; Olivier Yobrégat; Alban Jacques; Valérie Simon; Olivier Geffroy
Source:
Food research international 2022 v.157 pp. 111434
ISSN:
0963-9969
Subject:
Vitis vinifera; analysis of variance; chemometrics; food research; gas chromatography-mass spectrometry; grapes; headspace analysis; odors; phenotype; principal component analysis; solid phase microextraction; viticulture
Abstract:
... This study investigated a quick way to discriminate grape varieties based on their composition in volatile compounds through a SIFT-MS scan coupled with simple chemometrics approaches such as analysis of variance (ANOVA), principal component analysis (PCA) and hierarchical ascendant classification (HAC). The 23 studied grape varieties were distinguishable using O₂⁺, H₃O⁺ and NO⁺ as reagent ions, a ...
DOI:
10.1016/j.foodres.2022.111434

21. A novel chemical marker of tremorgenic mycotoxicosis detected by gas-chromatography/mass-spectrometry

Author:
C. Pickard; J.S. Fortin; D. Holmes; J.P. Buchweitz; A.F. Lehner
Source:
World mycotoxin journal 2022 v.15 no.3 pp. 223-240
ISSN:
1875-0796
Subject:
Penicillium; dietary exposure; fungi; gas chromatography-mass spectrometry; methylation; molecular weight; mycotoxicosis; nuclear magnetic resonance spectroscopy; roquefortine; secondary metabolites
Abstract:
... Tremorgenic mycotoxicosis can arise from dietary exposure to secondary metabolite products of various fungal species, particularly those from the Penicillium genus. Although general toxin screens often rely on gas chromatography-mass spectrometry (GC/MS) and well-developed mass spectral library databases, two principal representative Penicillium mycotoxins, roquefortine and penitrem A, are unamena ...
DOI:
10.3920/WMJ2020.2633

22. A novel enrichment and sensitive method for simultaneous determination of 15 phthalate esters in milk powder samples

Author:
Jin-Kui Ma; Shou-Lian Wei; Qing Tang; Xiao-Chen Huang
Source:
Lebensmittel-Wissenschaft + Technologie 2022 v.153 pp. 112426
ISSN:
0023-6438
Subject:
detection limit; dried milk; gas chromatography-mass spectrometry; humans; magnetism; molecular imprinting; phthalates; polymers; solid phase extraction; standard deviation
Abstract:
... Phthalate acid esters (PAEs) with superior performance are widely used. However, the long-term intake of PAEs seriously damages the human body. In this work, a novel type of magnetic molecularly imprinted polymer (mMIP) was synthesized and coupled with gas chromatography–mass spectrometry (GC/MS) for the selective separation and determination of 15 PAEs in milk powder samples. Key mMIP variables, ...
DOI:
10.1016/j.lwt.2021.112426

23. A novel method for the quantification of tire and polymer-modified bitumen particles in environmental samples by pyrolysis gas chromatography mass spectroscopy

Author:
Elisabeth S. Rødland; Saer Samanipour; Cassandra Rauert; Elvis D. Okoffo; Malcom J. Reid; Lene S. Heier; Ole Christian Lind; Kevin V. Thomas; Sondre Meland
Source:
Journal of hazardous materials 2022 v.423 pp. 127092
ISSN:
0304-3894
Subject:
bitumen; gas chromatography-mass spectrometry; microplastics; pyrolysis; pyrolysis gas chromatography; roadsides; rubber; sediments; snow; soil; styrene; traffic
Abstract:
... Tire and road wear particles may constitute the largest source of microplastic particles into the environment. Quantification of these particles are associated with large uncertainties which are in part due to inadequate analytical methods. New methodology is presented in this work to improve the analysis of tire and road wear particles using pyrolysis gas chromatography mass spectrometry. Pyrolys ...
DOI:
10.1016/j.jhazmat.2021.127092

24. A novel porphyrin-based conjugated microporous nanomaterial for solid-phase microextraction of phthalate esters residues in children's food

Author:
Fangyuan Hou; Qingyun Chang; Nana Wan; Jie Li; Xiaohuan Zang; Shuaihua Zhang; Chun Wang; Zhi Wang
Source:
Food chemistry 2022 v.388 pp. 133015
ISSN:
0308-8146
Subject:
chemical species; food chemistry; gas chromatography-mass spectrometry; milk; phthalates; polymers; porous media; pyrroles; solid phase microextraction; toxicity
Abstract:
... A novel porphyrin-based conjugated microporous polymer (PCMP) with microporous structure and nitrogen-rich pyrrole building blocks was synthesized. The PCMP was used as a coating material to prepare solid-phase microextraction (SPME) fibers by sol–gel technique. Due to the toxicity of the phthalate esters (PAEs) and the necessity for their sensitive determinations in some food samples, the SPME fi ...
DOI:
10.1016/j.foodchem.2022.133015

25. A novel quorum quencher, Rhodococcus pyridinivorans XN-36, is a powerful agent for the biocontrol of soft rot disease in various host plants

Author:
Zhe Zhou; Xiaozhen Wu; Jiayi Li; Yiyin Zhang; Yaohua Huang; Wenping Zhang; Yu Shi; Junxia Wang; Shaohua Chen
Source:
Biological control 2022 v.169 pp. 104889
ISSN:
1049-9644
Subject:
Brassica rapa subsp. pekinensis; Chinese cabbage; Daucus carota; Pectobacterium carotovorum; Solanum tuberosum; bacteria; biochemical pathways; biodegradation; biological control; biological control agents; carrots; cell communication; chemical structure; disease incidence; disease severity; enzyme activity; gas chromatography-mass spectrometry; homoserine; hydrolysis; maceration; metabolism; metabolites; potatoes; virulence
Abstract:
... Quorum sensing (QS) is a microbial cell–cell communication mechanism that regulates the virulence factor production in numerous pathogens, which plays a key role in microbial infections. QS-mediated microbial infections can be blocked via quorum quenching (QQ), which disrupts QS either by degradation of QS signals or interference of signal generation or perception. The pathogenicity of various dis ...
DOI:
10.1016/j.biocontrol.2022.104889

26. A quantitative reliability metric for querying large database

Author:
Zewei Chen; Peter de Boves Harrington; Preshious Rearden; Vivekananda Shetty; Angelica Noyola
Source:
Forensic science international 2022 v.331 pp. 111155
ISSN:
0379-0738
Subject:
automation; cumulative distribution; databases; forensic sciences; gas chromatography-mass spectrometry; narcotics; probability; variance
Abstract:
... A redesigned quantitative reliability metric based on the F-distribution (QRMf) is reported for evaluating the reliability of library search. The QRMf provides orthogonal information to the comparison metric (e.g., dot product) and yields a probabilistic result. An intralibrary search can be considered as an idealized search because the top hit, i.e., the closest matching object, will match perfec ...
DOI:
10.1016/j.forsciint.2021.111155

27. A reliable tool for detecting 7‐dehydrocholesterol and cholesterol in human plasma and its use in diagnosis of Smith–Lemli–Opitz syndrome

Author:
Yitao Luo; Zhengyuan Liu; Yujie Zeng; Yuxiao Zhang; Yujing Luan; Li Ma; Li Chen; Lin Zou; Jingmin Yang; Zhibin Huang; Yulan Rao; Chengqiang Zhang
Source:
Journal of separation science 2022 v.45 no.5 pp. 1080-1093
ISSN:
1615-9306
Subject:
7-dehydrocholesterol; biosynthesis; chemical species; cholesterol; congenital abnormalities; derivatization; ethanol; gas chromatography-mass spectrometry; hexane; humans; microwave treatment; oxidoreductases; potassium hydroxide; separation; therapeutics
Abstract:
... BACKGROUND: Smith–Lemli–Opitz syndrome is a birth defect caused by the deficiency of 7‐dehydrocholesterol reductase in cholesterol biosynthesis pathway, which leads to accumulation of 7‐dehydrocholesterol and reduction of cholesterol in body fluids. To effectively diagnose Smith–Lemli–Opitz syndrome and monitor therapy, a reliable method for simultaneous detection of 7‐dehydrocholesterol and chole ...
DOI:
10.1002/jssc.202100594

28. A seed of Albizzia julibrissin wild plant as an efficient source for biodiesel production

Author:
Inam Ullah Khan; Abdul Haleem
Source:
Biomass and bioenergy 2022 v.158 pp. 106381
ISSN:
0961-9534
Subject:
Fourier transform infrared spectroscopy; biodiesel; biomass; catalysts; fatty acid composition; gas chromatography-mass spectrometry; methanol; nuclear magnetic resonance spectroscopy; petroleum; potassium hydroxide; raw materials; seed oils; solid phase extraction; temperature; transesterification; wild plants
Abstract:
... The Albizzia julibrissin seed oil was studied for the first time as a promising unconventional raw material for the preparation of biodiesel fuel. We aim to optimize different oil extraction reaction parameters, alkali-catalyzed transesterification process for maximal biodiesel production and finally evaluated its compatibility with mineral diesel. In the present work, various solvents, as well as ...
DOI:
10.1016/j.biombioe.2022.106381

29. A study of vegetable oil modified QCM sensor to detect β-pinene in Indian cardamom

Author:
Nilava Debabhuti; Sumani Mukherjee; Swarnali Neogi; Prolay Sharma; Ugir Hossain Sk; Soumen Maiti; Mousumi Poddar Sarkar; Bipan Tudu; Nabarun Bhattacharyya; Rajib Bandyopadhyay
Source:
Talanta 2022 v.236 pp. 122837
ISSN:
0039-9140
Subject:
Fourier transform infrared spectroscopy; adsorption; cardamom; detection limit; gas chromatography-mass spectrometry; health hazards; hydrophobicity; oleic acid; olives; quartz crystal microbalance; sorption isotherms; vegetable oil; volatile organic compounds
Abstract:
... A quartz crystal microbalance (QCM) sensor was developed in this study with the vegetable oil from olive (OLV-QCM) to detect an important volatile organic compound, β-pinene in Indian cardamom. Hydrophobic vegetable oil from olive, which contains oleic acid and omega-9, a monounsaturated fatty acid was found to be suitable for binding β-pinene through non-covalent bonds. The fabricated QCM sensor ...
DOI:
10.1016/j.talanta.2021.122837

30. A thermophile Hydrogenibacillus sp. strain efficiently degrades environmental pollutants polycyclic aromatic hydrocarbons

Author:
Xiaoyu Qiu; Weiwei Wang; Lige Zhang; Lihua Guo; Ping Xu; Hongzhi Tang
Source:
Environmental microbiology 2022 v.24 no.1 pp. 436-450
ISSN:
1462-2912
Subject:
Escherichia coli; biotechnology; carbon; catabolism; chromosomes; energy; environmental management; enzyme activity; enzymes; gas chromatography-mass spectrometry; gene expression; human health; isotope labeling; metabolites; multigene family; naphthalene; phthalic acid; salicylic acid; thermophiles; transcription (genetics)
Abstract:
... Polycyclic aromatic hydrocarbons (PAHs) are ubiquitous pollutants threatening ecosystems and human health. Here, we isolated and characterized a new strain, Hydrogenibacillus sp. N12, which is a thermophilic PAH‐degrader. Strain N12 utilizes naphthalene as a sole carbon and energy source above 60°C and co‐metabolizes many other PAHs as well. The metabolites were identified in the catabolism of nap ...
DOI:
10.1111/1462-2920.15869

31. Acidolysis mechanism of lignin from bagasse during p-toluenesulfonic acid treatment

Author:
Chengqi Feng; Jiatian Zhu; Liming Cao; Li Yan; Chengrong Qin; Chen Liang; Shuangquan Yao
Source:
Industrial crops and products 2022 v.176 pp. 114374
ISSN:
0926-6690
Subject:
acid treatment; acidolysis; bagasse; biomass; catalysts; cellulose; depolymerization; gas chromatography-mass spectrometry; hemicellulose; hydrolysates; lignin; lignocellulose; nuclear magnetic resonance spectroscopy; p-toluenesulfonic acid
Abstract:
... Lignin was efficiently separated from lignocellulosic biomass using p-toluenesulfonic acid (p-TsOH) treatment. However, lignin depolymerization and acidolysis have not been studied to date. In this study, the mechanism of lignin acidolysis was investigated. The structure of lignin in bagasse before and after the p-TsOH treatment was analyzed. The efficiency and selectivity of lignin depolymerizati ...
DOI:
10.1016/j.indcrop.2021.114374

32. Advances in the analytical methods for the determination of fluorinated aromatic carboxylic acids in aqueous matrices: A review

Author:
Anuj Kumar; Chhaya Sharma
Source:
Journal of separation science 2022 v.45 no.1 pp. 78-93
ISSN:
1615-9306
Subject:
detection limit; gas chromatography-mass spectrometry; high performance liquid chromatography; ion exchange chromatography; isotope dilution technique; oil fields; oils; separation; solid phase extraction
Abstract:
... Fluorobenzoic acids are critically important chemical tracers in hydrothermal, geothermal, leaching, and oilfield applications. Particularly in oilfield applications, these tracers are used to investigate fluid flow paths between injector wells and producer wells, providing valuable information about the enhanced oil recovery process of the oil reservoirs. The detection limit of tracers is a vital ...
DOI:
10.1002/jssc.202100794

33. Aerial warfare: An inducible production of volatile bioactive metabolites in a novel species of Scytinostroma sp.

Author:
Françios A.B. Olivier; Kyung W. Bang; Erica Zarate; Matias Kinzurik; Daria Chudakova; Austen R.D. Ganley; Silas G. Villas-Boas
Source:
Fungal genetics and biology 2022 v.158 pp. 103646
ISSN:
1087-1845
Subject:
Candida albicans; Scytinostroma; antibiotics; antifeedants; antimicrobial properties; cytotoxicity; fibroblasts; fruits; gas chromatography-mass spectrometry; headspace analysis; metabolites; microbial genetics; sesquiterpenoids; solid phase microextraction; volatile organic compounds; white-rot fungi
Abstract:
... Antimicrobial volatile organic compounds (VOCs) may provide fungi an advantage over other competing microorganisms. As these defensive metabolites are often produced in response to microbial competitors, they are easily overlooked in axenic cultures. We used media supplemented with spent medium from Candida albicans to induce the expression of a broad-spectrum antimicrobial response in a previousl ...
DOI:
10.1016/j.fgb.2021.103646

34. Aerobic biotransformation of a novel highly functionalized polyfluoroether-based surfactant using activated sludge from a wastewater treatment plant

Author:
Shira Joudan; Scott A. Mabury
Source:
Environmental science 2022 v.24 no.1 pp. 62-71
ISSN:
2050-7895
Subject:
activated sludge; alcohols; bioaccumulation; biotransformation; carboxylic acids; gas chromatography-mass spectrometry; liquid chromatography; markets; metabolites; surfactants; tandem mass spectrometry; wastewater treatment
Abstract:
... A replacement fluorosurfactant has been recently introduced to the European market as an alternative to other per- and polyfluoroalkyl substances (PFAS) that have been phased-out or banned. Here, we incubated this novel fluorosurfactant (diFESOS, [F₇C₃OCHFCF₂SCH₂CH₂OC(O)]₂C₂H₃SO₃⁻) which contains ether and thioether insertions, and its known polyfluoroalkyl degradation products, an alcohol (FESOH) ...
DOI:
10.1039/d1em00358e

35. AgNPs seed priming accelerated germination speed and altered nutritional profile of Chinese cabbage

Author:
Xiaoding Zhou; Xiaorong Jia; Zhaohui Zhang; Keyu Chen; Lianhong Wang; Huimin Chen; Zong Yang; Chengdu Li; Lijuan Zhao
Source:
Science of the total environment 2022 v.808 pp. 151896
ISSN:
0048-9697
Subject:
Chinese cabbage; alanine; aspartic acid; bioaccumulation; biosafety; cabbage; crop yield; dose response; environment; gas chromatography-mass spectrometry; glutamic acid; glutamine; greenhouses; histidine; iron; isoleucine; leucine; liquid chromatography; lysine; metabolites; nitrogen; nutrient content; nutritive value; phenylalanine; proline; seed germination; seedlings; serine; soil; tandem mass spectrometry; threonine; tyrosine; valine
Abstract:
... In this study, the performance of AgNPs-priming (20, 40, and 80 mg/L) on the seed germination, yield, and nutritional quality of Chinese cabbage were evaluated. We found that AgNPs-priming at 20 and 40 mg/L for 15 h significantly accelerated seed germination speed and seedling development. Cabbage seeds primed with different concentrations of AgNPs (0, 20, 40, and 80 mg/L) were then planted in a r ...
DOI:
10.1016/j.scitotenv.2021.151896

36. Agathis robusta Bark Essential Oil Effectiveness against COVID-19: Chemical Composition, In Silico and In Vitro Approaches

Author:
Maged E. Mohamed; Nora Tawfeek; Samar S. Elbaramawi; Eman Fikry
Source:
Plants 2022 v.11 no.5 pp. -
ISSN:
2223-7747
Subject:
Agathis robusta; COVID-19 infection; RNA-directed RNA polymerase; Severe acute respiratory syndrome coronavirus 2; active sites; antiviral properties; bark; borneol; chemical composition; computer simulation; computer software; cytopathogenicity; essential oils; etiological agents; gas chromatography-mass spectrometry; limonene; proteinases
Abstract:
... Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV2), the causative agent of Coronavirus Disease 2019 (COVID-19), has seriously threatened global health. Alongside the approved vaccines, the discovery of prospective anti-COVID-19 drugs has been progressively targeted. Essential oils (EOs) provide a rich source of compounds with valuable antiviral activities that may contribute as effective ...
DOI:
10.3390/plants11050663

37. Agave tequilana Counteracts Chronic Hypertension and Associated Vascular Damage

Author:
Maribel Herrera-Ruiz; Zúlima Jannette Gutiérrez-Nava; Celeste Trejo-Moreno; Alejandro Zamilpa; Manasés González-Cortazar; Antonio Ruperto Jiménez-Aparicio; Enrique Jiménez-Ferrer
Source:
Journal of medicinal food 2022 v.25 no.4 pp. 443-455
ISSN:
1557-7600
Subject:
Agave tequilana; animal models; antioxidant activity; antioxidants; diastolic blood pressure; functional foods; gas chromatography-mass spectrometry; hypertension; immunomodulators; inflammation; interleukin-10; interleukin-6; intraperitoneal injection; lipid peroxidation; males; malondialdehyde; oxidative stress; tumor necrosis factor-alpha; vasoconstriction
Abstract:
... Systemic arterial hypertension (SAH) is a health problem of great importance worldwide, and endothelial dysfunction underlies SAH development. This condition's main characteristics include vasoconstriction, inflammation, oxidative stress, and procoagulant and proliferative states. This study's objective was to evaluate the antihypertensive, anti-inflammatory, and antioxidant effects of the whole e ...
DOI:
10.1089/jmf.2021.0044

38. Aging cats prefer warm food

Author:
Ryan Eyre; Melanie Trehiou; Emily Marshall; Laura Carvell-Miller; Annabelle Goyon; Scott McGrane
Source:
Journal of veterinary behavior 2022 v.47 pp. 86-92
ISSN:
1558-7878
Subject:
body weight; flavor; food consumption; gas chromatography-mass spectrometry; gravy; headspace analysis; temperature; viscometers; viscosity; volatile compounds
Abstract:
... The aim of this study was to determine if meal temperature of cat wet food affected the feeding preference of aging (>7 years of age) domestic short-haired cats. We examined a chunks in gravy product served at three nominal temperatures of 6⁰C, 21⁰C, and 37⁰C using a two-bowl difference test. Gravy viscosity was measured using a Brookfield DV1 viscometer and the percentage of volatile compounds re ...
DOI:
10.1016/j.jveb.2021.09.006

39. Alpha-Ketoglutarate Promotes Goblet Cell Differentiation and Alters Urea Cycle Metabolites in DSS-Induced Colitis Mice

Author:
Alejandro Bravo Iniguez; Qiyu Tian; Min Du; Mei-Jun Zhu
Source:
Nutrients 2022 v.14 no.6 pp. -
ISSN:
2072-6643
Subject:
cell differentiation; colitis; dextran sulfate; gas chromatography-mass spectrometry; gene expression; glutathione; intestines; males; metabolism; metabolites; metabolome; metabolomics; mucins; mucus; ornithine; putrescine; urea; urea cycle
Abstract:
... The metabolite, alpha-ketoglutarate (aKG), shows promise as an approach for ameliorating colitis, but much remains unknown about the full extent of its effects on the metabolome and mucosal barrier. To further elucidate this matter, C57BL/6 male mice received drinking water with or without 1% aKG for three weeks, then were subjected to 2.5% dextran sulfate sodium (DSS) induction for 7 days followe ...
DOI:
10.3390/nu14061148

40. Alterations of the gut microbiota and metabolomics in children with e-waste lead exposure

Author:
Xiang Zeng; Zhijun Zeng; Qihua Wang; Wanting Liang; Yufeng Guo; Xia Huo
Source:
Journal of hazardous materials 2022 v.434 pp. 128842
ISSN:
0304-3894
Subject:
blood; electronic wastes; gas chromatography-mass spectrometry; intestinal microorganisms; lead; metabolites; metabolome; metabolomics; sphingolipids; urine
Abstract:
... A lead (Pb) exposure can alter the composition and metabolites of gut microbiota. However, few studies investigated this association in the children. A total of 551 children aged 3–7 years were recruited from Guiyu (the e-waste dismantling area) and Haojiang (the reference area). There were finally 70 subjects met the inclusive criteria. Blood and urinary Pb concentrations were detected by GFAAS a ...
DOI:
10.1016/j.jhazmat.2022.128842

41. Ameliorative effect of methanolic extract of Tribulus terrestris L. on nicotine and lead-induced degeneration of sperm quality in male rats

Author:
Wael Ammar Aldaddou; Abdullah S.M. Aljohani; Idris Adewale Ahmed; Naser A. Al-Wabel; Ibrahim M. El- Ashmawy
Source:
Journal of ethnopharmacology 2022 v.295 pp. 115337
ISSN:
0378-8741
Subject:
Tribulus terrestris; albino; anti-inflammatory activity; blood serum; body weight; epididymis; gas chromatography-mass spectrometry; histopathology; hydrogen; lead acetate; male sterility; males; methanol; nicotine; physical activity; protective effect; saponins; semen; sperm quality; toxicity; traditional medicine
Abstract:
... The use of herbal and medicinal plants to treat male infertility is well known in history. Tribulus terrestris L. (TT) belongs to the Zygophyllaceae family and it is used in folk medicine to vitalize and also improve both physical performance and sexual function in men in addition to the protective effect of the gross saponins of TT against ischemic stroke and its clinical anti-inflammatory proper ...
DOI:
10.1016/j.jep.2022.115337

42. An Efficient and Simple Breast Milk Sample Preparation to Detect Polycyclic Aromatic Hydrocarbons by Gas Chromatography-Mass Spectrometry

Author:
Timea Dergez; Viktória Poór; Bernard Collins Anditi; Anikó Kőnig-Péter
Source:
Journal of analytical chemistry 2022 v.77 no.4 pp. 513-518
ISSN:
1061-9348
Subject:
analytical chemistry; anthracenes; breast feeding; breast milk; carcinogenicity; detection limit; gas chromatography-mass spectrometry; human health; standard deviation
Abstract:
... Polycyclic aromatic hydrocarbons (PAHs) can be extremely hazardous to human health due to their carcinogenicity and toxicity. Following mother exposure, a part of PAHs might be transferred into breast milk, and PAH exposure may results in adverse effects in breastfeeding infants. Chrysene, benzo(a,h)anthracene, benzo(b)fluoranthene and benzo(a)pyrene (PAH4) are the most suitable indicators of PAHs ...
DOI:
10.1134/S106193482204013X

43. An Identification and Expression Analysis of the ABCG Genes Related to Benzaldehyde Transportation among Three Prunus Species

Author:
Ruijie Hao; Jun Chang; Chen Qiu; Shuting Yang
Source:
Horticulturae 2022 v.8 no.6 pp. -
ISSN:
2311-7524
Subject:
Prunus mume; air; benzaldehyde; flowers; gas chromatography-mass spectrometry; headspace analysis; odors; quantitative polymerase chain reaction; spring; transportation; volatilization
Abstract:
... The plants of Prunus mostly bloom in early spring, and the flowers of various species possess their individual floral scent characteristics; Prunus mume, especially, can volatilize a large amount of benzenoid compounds into the air during the flowering phase. In order to elucidate the molecular basis of the differences in the volatile capacity of aromatic substances among Prunus flowers, the endog ...
DOI:
10.3390/horticulturae8060475

44. An Integrative Volatile Terpenoid Profiling and Transcriptomics Analysis in Hoya cagayanensis, Hoya lacunosa and Hoya coriacea (Apocynaceae, Marsdenieae)

Author:
Syazwani Basir; Muhamad Afiq Akbar; Noraini Talip; Syarul Nataqain Baharum; Hamidun Bunawan
Source:
Horticulturae 2022 v.8 no.3 pp. -
ISSN:
2311-7524
Subject:
Hoya; biosynthesis; flowers; gas chromatography-mass spectrometry; gene ontology; methyl salicylate; odors; phytochemicals; secondary metabolites; solid phase microextraction; synthetic biology; transcriptome; transcriptomics; unigenes
Abstract:
... Hoya’s R.Br. attractive flower shapes and unique scents make it suitable to be exploited as a new source of tropical fragrance. Therefore, this study aims to elucidate the biosynthesis of secondary metabolites using phytochemical and transcriptomic approaches to understand the mechanisms of scents biosynthesis, especially terpenoid in Hoya. Three Hoya flower species were selected in this study: Ho ...
DOI:
10.3390/horticulturae8030224

45. An effective natural mineral-catalyzed heterogeneous electro-Fenton method for degradation of an antineoplastic drug: Modeling by a neural network

Author:
Mahsa Hajiahmadi; Mahmoud Zarei; Alireza Khataee
Source:
Chemosphere 2022 v.291 pp. 132810
ISSN:
0045-6535
Subject:
antineoplastic agents; catalytic activity; cathodes; gas chromatography-mass spectrometry; graphene; hematite; magnetite; medicine; mineralization; pH; paclitaxel; pyrite; siderite; total organic carbon
Abstract:
... In this study, the heterogeneous electro-Fenton method was used to remove Paclitaxel as an antineoplastic medicine. The cathode based on three-dimensional graphene (3DG) was applied as a gas diffusion electrode. The potential of five eco-friendly and recyclable iron minerals derived from nature (Magnetite, Siderite, Hematite, Limonite, and Pyrite) was investigated. Among the applied iron minerals, ...
DOI:
10.1016/j.chemosphere.2021.132810

46. An image-based fingerprint-efficacy screening strategy for uncovering active compounds with interactive effects in Yindan Xinnaotong soft capsule

Author:
Han-Qing Pang; Ping Zhou; Xiao-Wei Meng; Hua Yang; Yi Li; Xu-Dong Xing; Hui-Ying Wang; Fang-Rong Yan; Ping Li; Wen Gao
Source:
Phytomedicine 2022 v.96 pp. 153911
ISSN:
0944-7113
Subject:
T-lymphocytes; Toll-like receptors; apoptosis; flavonoids; gas chromatography-mass spectrometry; lipopolysaccharides; liquid chromatography; pharmacology; phenotype; quantitative polymerase chain reaction; therapeutics
Abstract:
... Yindan Xinnaotong soft capsule (YDXNT) is a clinically effective herbal prescription used for the treatment of cardiovascular and cerebrovascular diseases. Since Chinese medicines (CMs) exert their effects via a “multiple-components and multiple-targets” mode, discovery of the active compounds with interactive effects may contribute to reveal their mechanisms of action.This study aimed to establis ...
DOI:
10.1016/j.phymed.2021.153911

47. An integrated chemical characterization based on FT-NIR, GC–MS and LC-MS for the comparative metabolite profiling of wild and cultivated agarwood

Author:
Cheng Yao; Luming Qi; Furong Zhong; Na Li; Yuntong Ma
Source:
Journal of chromatography 2022 v.1188 pp. 123056
ISSN:
1570-0232
Subject:
Oriental traditional medicine; aromatic compounds; biochemical polymorphism; chemical composition; gas chromatography-mass spectrometry; metabolites; multivariate analysis; principal component analysis; sesquiterpenoids; tandem mass spectrometry; ultra-performance liquid chromatography
Abstract:
... Agarwood is a well-known and precious traditional Chinese medicine, has been widely applied as drugs and spices for century. The large demand for this material has deeply stimulated the emergence of numerous cultivated products. However, it is difficult to distinguish wild agarwood from cultivated agarwood, and the chemical composition difference between them is not clear. In this study, an integr ...
DOI:
10.1016/j.jchromb.2021.123056

48. An operative laboratory investigation of bioconversion route from waste coal to natural energy

Author:
Priyanka Basera; Meeta Lavania; Omkar Shinde; Supriya Kumar Sarkar; Banwari Lal
Source:
Annals of microbiology 2022 v.72 no.1 pp. 13
ISSN:
1590-4261
Subject:
Fourier transform infrared spectroscopy; air; alkanes; ammonium chloride; biodiversity; biotransformation; carbon; coal; energy; energy-dispersive X-ray analysis; gas chromatography-mass spectrometry; methane production; pathogenicity; peptones; phenol; potassium; sodium acetate; sodium bicarbonate; soil; temperature; toxicity; yeast extract
Abstract:
... PURPOSE: In the present research, the potential of reactivated consortium for the methane production consuming waste coal as a carbon source (1% w/v) in the modified media at mesophilic temperature (37 °C) was determined. METHODS: Media modification was conducted for the enhancement of methane production by selecting three different components from the two media, i.e., Methanosprillium sp. produci ...
DOI:
10.1186/s13213-021-01659-z

49. Analysis of Varietal Thiols in Sauvignon Blanc Wines—Optimization of a Solid-Phase Extraction Gas Chromatography Tandem Mass Spectrometry Method

Author:
Dorothea Leis; Marko Viskić; Ana Jeromel; Luna Maslov Bandić; Erich Leitner
Source:
Food analytical methods 2022 v.15 no.6 pp. 1591-1605
ISSN:
1936-9751
Subject:
acetates; chemiluminescence; derivatization; detection limit; fermentation; gas chromatography-mass spectrometry; grapes; isotope dilution technique; microextraction; odors; pH; solid phase extraction; stable isotopes; sulfur; tandem mass spectrometry; thiols; wines
Abstract:
... Odoriferous compounds 3-sulfanylhexanol (3-SH) and 3-sulfanylhexyl acetate (3-SHA), produced during the fermentation from precursors present in grape and must, are the most important representatives of the group of varietal thiols with a crucial role in the formation of the aroma of certain wines and a very low odor detection threshold. Due to their reactivity, polarity, high boiling points, and v ...
DOI:
10.1007/s12161-021-02200-3

50. Analysis of Volatile Components in Tremella fuciformis by Electronic Nose Combined with GC-MS

Author:
Lijun Fu; Jing Tian; Li Liu; Yongzheng Ma; Xiumin Zhang; Changyang Ma; Wenyi Kang; Yong Sun
Source:
Journal of food quality 2022 v.2022 pp. -
ISSN:
1745-4557
Subject:
Tremella fuciformis; acetic acid; carene; electronic nose; food quality; gas chromatography-mass spectrometry; octenol; odors; principal component analysis; China
Abstract:
... In order to quickly evaluate the quality of Tremella fuciformis, the volatile components of T. fuciformis from 4 provinces in China, including Hebei, Henan, Fujian, and Sichuan, were analyzed by electronic nose combined with gas chromatography-mass spectrometry (GC-MS), and the key aroma compounds were determined by relative odor activity value (ROAV). The results showed that the electronic nose c ...
DOI:
10.1155/2022/9904213

51. Analysis of flavor-related compounds in fermented persimmon beverages stored at different temperatures

Author:
Xiaowen An; Zijuan Wang; Jiamin Li; Xinyu Nie; Kexin Liu; Yifan Zhang; Zhihui Zhao; Bimal Chitrakar; Changwei Ao
Source:
Lebensmittel-Wissenschaft + Technologie 2022 v.163 pp. 113524
ISSN:
0023-6438
Subject:
acetic acid; electronic tongue; epicatechin; ethanol; ethyl acetate; fermentation; fermented beverages; flavor; gas chromatography-mass spectrometry; liquid chromatography; metabolites; metabolomics; octanoic acid; persimmons; quercetin; solid phase microextraction; storage temperature; taste
Abstract:
... Storage temperature plays a very important role in the flavor development of fermented beverages. In this study, fermented persimmon beverage was stored for one year to study the changes in flavor-related compounds during storage at different temperatures. Fresh persimmon beverage and fermented beverages stored at 10, 20, and 30 °C had different tastes, distinguished by electronic tongue (ET). The ...
DOI:
10.1016/j.lwt.2022.113524

52. Analysis of furan and its major furan derivatives in coffee products on the Chinese market using HS-GC–MS and the estimated exposure of the Chinese population

Author:
Pei Cao; Lei Zhang; Yang Yang; Xiao-dan Wang; Zhao-ping Liu; Jian-wen Li; Li-yuan Wang; Sookja Chung; Moqin Zhou; Ke Deng; Ping-ping Zhou; Ping-gu Wu
Source:
Food chemistry 2022 v.387 pp. 132823
ISSN:
0308-8146
Subject:
dietary exposure; food chemistry; furans; gas chromatography-mass spectrometry; headspace analysis; markets; China
Abstract:
... The current study analysed concentrations of furan and its derivatives in coffee products commercially available in China based on an improved headspace gas chromatography-mass spectrometry (HS-GC–MS) method and estimated health risks. A total of 101 samples of coffee products on the Chinese market was analysed. Furan (98%, ND-6569 μg/kg) and 2-methylfuran (100%, 2–29639 μg/kg) were the compounds ...
DOI:
10.1016/j.foodchem.2022.132823

53. Analysis of heavy metals and PAHs in the waste resulting from hookah consumption: Ahvaz City, Iran

Author:
Mahboobeh Dehvari; AliAkbar Babaei
Source:
Environmental science and pollution research 2022 v.29 no.22 pp. 33130-33137
ISSN:
0944-1344
Subject:
atomic absorption spectrometry; charcoal; education; flavor; gas chromatography-mass spectrometry; human health; iron; markets; pollution; research; risk; tobacco; Africa; Iran
Abstract:
... Hookah, a popular form of smoking tobacco, has been commonly used in Asia and Africa. However, the widespread consumption of hookah has a major impact on human health being. In addition to health risks, discarding the waste products of hookah would be a serious potential danger for environmental resources. In this study, the waste materials of hookah consumption (water, tobacco, and charcoal) were ...
DOI:
10.1007/s11356-021-17910-8

54. Analysis of volatile flavor compounds of green wheat under different treatments by GC‐MS and GC‐IMS

Author:
Kangyi Zhang; Can Zhang; Lingling Gao; Haining Zhuang; Tao Feng; Guozhen Xu
Source:
Journal of food biochemistry 2022 v.46 no.6 pp. e13875
ISSN:
0145-8884
Subject:
Citrus; almonds; beans; benzaldehyde; biochemistry; cluster analysis; flavor; freeze drying; gas chromatography-mass spectrometry; hay; mushrooms; odors; precooling; rapid methods; sensory evaluation; wheat
Abstract:
... Volatile components in green wheat under different treatments including raw, washing, blanching, precooling, freezing, steaming, boiling, frying, and freeze‐drying were evaluated by gas chromatography‐ion mobility spectroscopy (GC‐IMS) and gas chromatography‐mass spectrometry (GC‐MS). Five key aroma substances including n‐hexanal, benzaldehyde, nonanal, 2‐pentylfuran, and (E)‐oct‐2‐enal were found ...
DOI:
10.1111/jfbc.13875

55. Analysis of volatile organic compounds produced during incineration of non-degradable and biodegradable plastics

Author:
Min Jang; Hyemin Yang; Seul-A Park; Hye Kyeong Sung; Jun Mo Koo; Sung Yeon Hwang; Hyeonyeol Jeon; Dongyeop X. Oh; Jeyoung Park
Source:
Chemosphere 2022 v.303 pp. 134946
ISSN:
0045-6535
Subject:
biodegradability; combustion; gas chromatography-mass spectrometry; issues and policy; landfills; market share; polyhydroxyalkanoates; polylactic acid; toxicity; waste treatment
Abstract:
... As plastic consumption has increased, environmental problems associated with the accumulation of plastic wastes have started to emerge. These include the non-degradability of plastic and its disintegration into sub-micron particles. Although some biodegradable plastic products have been developed to relieve the landfill and leakage burden, a significant portion of discarded plastics are inevitably ...
DOI:
10.1016/j.chemosphere.2022.134946

56. Analytical Procedural Validation of Policosanol Compounds

Author:
Donporn Wongwaiwech; Sudthida Kamchonemenukool; Chi-Tang Ho; Sukeewan Detyothin; Pattanan Kasemweerasan; Monthana Weerawatanakorn
Source:
Food analytical methods 2022 v.15 no.7 pp. 2059-2068
ISSN:
1936-9751
Subject:
active ingredients; calibration; derivatization; detection limit; gas chromatography-mass spectrometry; quality control; rice bran; silylation; solvents; storage temperature; ultrasonics
Abstract:
... Currently, the widely accepted method for determining policosanol contents is gas chromatography-mass spectrometry (GC–MS), but measurement method validation is lacking. The validation is essential to improve measurement efficiency for greater accuracy and precision. The aim of the study purposed to validate policosanol analysis by GC–MS using silylation derivatization to improve measurement effic ...
DOI:
10.1007/s12161-022-02265-8

57. Analyzing the Effect of Baking on the Flavor of Defatted Tiger Nut Flour by E-Tongue, E-Nose and HS-SPME-GC-MS

Author:
Chunbo Guan; Tingting Liu; Quanhong Li; Dawei Wang; Yanrong Zhang
Source:
Foods 2022 v.11 no.3 pp. -
ISSN:
2304-8158
Subject:
2-heptanone; Cyperus esculentus; almonds; astringency; bitterness; electronic nose; electronic tongue; flour; gas chromatography-mass spectrometry; headspace analysis; heat; octanoic acid; odors; principal component analysis; pyrazines; radar; solid phase microextraction; sweetness; taste; volatile organic compounds
Abstract:
... In order to screen for a proper baking condition to improve flavor, in this experiment, we analyzed the effect of baking on the flavor of defatted tiger nut flour by electronic tongue (E-tongue), electronic nose (E-nose) and headspace solid-phase microextraction gas chromatography-mass spectrometry (HS-SPME-GC-MS). According to E-tongue and E-nose radar plots and principal component analysis (PCA) ...
DOI:
10.3390/foods11030446

58. Anti-fungal and antioxidant properties of propolis (bee glue) extracts

Author:
Marwa Ezz El-Din Ibrahim; Randah Miqbil Alqurashi
Source:
International journal of food microbiology 2022 v.361 pp. 109463
ISSN:
0168-1605
Subject:
antifungal properties; antioxidant activity; antioxidants; cheeses; color; food microbiology; gas chromatography-mass spectrometry; pH; propolis; sensory evaluation; sensory properties; thyme; yeasts
Abstract:
... This study aimed to identify the phenolic compounds contained in propolis and to evaluate the effect of propolis and its extracts on the antifungal activity, pH, color, and sensory analysis of creamy cheese with thyme (thyme labneh). Ethanolic and water extracts of propolis were evaluated to determine its phenolic compound content and antioxidant activity. Phenolic compounds in propolis were ident ...
DOI:
10.1016/j.ijfoodmicro.2021.109463

59. Antibacterial Activities and Synergistic Interaction of Citrus Essential Oils and Limonene with Gentamicin against Clinically Isolated Methicillin-Resistant Staphylococcus aureus

Author:
Apichai Sreepian; Supaluk Popruk; Daranee Nutalai; Chayanit Phutthanu; Preeyaporn M. Sreepian
Source:
The scientific world journal 2022 v.2022 pp. -
ISSN:
1537-744X
Subject:
Citrus aurantiifolia; Citrus reticulata; agar; antibacterial properties; antibiotic resistance; ciprofloxacin; clindamycin; erythromycin; fruits; gas chromatography-mass spectrometry; gentamicin; limonene; methicillin-resistant Staphylococcus aureus; synergism
Abstract:
... Citrus reticulata Blanco and Citrus aurantifolia are the edible plants which contain several biological properties including antibacterial activity. The aims of the present study were to determine the chemical compositions and evaluate antibacterial activities of citrus essential oils extracted from the fruit peels of C. reticulata (CREO) and C. aurantifolia (CAEO), alone and in combination with g ...
DOI:
10.1155/2022/8418287

60. Antibacterial Activity of Essential Oil from Ripe Berries of Juniperus oxycedrus L. Against Multi-drug Resistant Pathogens Responsible for Skin Infections in Burn Patients

Author:
Bachiri Fatiha; Benouaklil Fatouma; Hamaidi-Chergui Fella; Saidi Fairouz
Source:
Journal of essential oil-bearing plants 2022 v.25 no.2 pp. 305-314
ISSN:
0976-5026
Subject:
Acinetobacter baumannii; Juniperus oxycedrus; Klebsiella pneumoniae; Proteus mirabilis; Pseudomonas aeruginosa; Staphylococcus aureus; Staphylococcus epidermidis; antibacterial properties; chemical composition; chemical constituents of plants; essential oils; gas chromatography-mass spectrometry; hydrodistillation; minimum inhibitory concentration; multiple drug resistance
Abstract:
... This study aimed to investigate the phytochemical composition and antibacterial activity of essential oil of ripe berries of Juniperus oxycedrus L. against multi-drug resistant (MDR) strains, which were isolated from wound infections among burn patients. The isolation of essential oil was carried out by hydrodistillation and analyzed by gas chromatography-mass spectrometry (GC-MS). In vitro antiba ...
DOI:
10.1080/0972060X.2022.2077143

61. Antibacterial activity of essential oils from Brazilian plants and their major constituents against foodborne pathogens and spoilage bacteria

Author:
Alline Laiane Borges Dias; Cassia Cristina Fernandes; Jonathan Henrique de Souza; Carlos Henrique Gomes Martins; Felipe Fernandes Moreira; Antônio Eduardo Miller Crotti; Mayker Lazaro Dantas Miranda
Source:
Journal of essential oil research 2022 v.34 no.3 pp. 195-202
ISSN:
2163-8152
Subject:
Cryptocarya; Ocotea; Psidium cattleyanum; antibacterial properties; bacterial growth; essential oils; flame ionization; food spoilage; gas chromatography-mass spectrometry; limonene; minimum inhibitory concentration; research; spoilage; viridiflorol
Abstract:
... This study aimed at determining antibacterial activities of three essential oils (EOs) and their major constituents against foodborne pathogenic bacteria and food spoilage ones. The EOs were tested by the broth microdilution method on 96-well microplates, followed by minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) (µg/mL) determination. EOs from Psidium cattleia ...
DOI:
10.1080/10412905.2022.2032424

62. Antibacterial and antibiofilm activity of Peganum harmala seed extract against multidrug-resistant Pseudomonas aeruginosa pathogenic isolates and molecular mechanism of action

Author:
Nadine Khadraoui; Rym Essid; Selim Jallouli; Bilel Damergi; Iheb Ben Takfa; Ghassen Abid; Ines Jedidi; Asma Bachali; Ameni Ayed; Ferid Limam; Olfa Tabbene
Source:
Archives of microbiology 2022 v.204 no.2 pp. 133
ISSN:
0302-8933
Subject:
Peganum harmala; Pseudomonas aeruginosa; active ingredients; antibacterial properties; biofilm; butanol; cefazolin; cross infection; gas chromatography-mass spectrometry; genes; indole alkaloids; mechanism of action; multiple drug resistance; opportunistic pathogens; seed extracts; transcriptomics
Abstract:
... Biofilm formation of the opportunistic pathogen Pseudomonas (P). aeruginosa is one of the major global challenges to control nosocomial infections due to their high resistance to antimicrobials and host defense mechanisms. The present study aimed to assess the antibacterial and the antibiofilm activities of Peganum (P). harmala seed extract against multidrug-resistant P. aeruginosa isolates. Chemi ...
DOI:
10.1007/s00203-021-02747-z

63. Antibacterial and antibiofilm activity of essential oil of clove against Listeria monocytogenes and Salmonella Enteritidis

Author:
Mariem Somrani; Hajer Debbabi; Alfredo Palop
Source:
Food science and technology international 2022 v.28 no.4 pp. 331-339
ISSN:
1532-1738
Subject:
Listeria monocytogenes; Salmonella Enteritidis; antimicrobial properties; bioactive compounds; biofilm; biomass; cell adhesion; cloves; disk diffusion antimicrobial test; essential oils; eugenol; food science; gas chromatography-mass spectrometry; gentian violet; minimum inhibitory concentration; oils; technology
Abstract:
... The antibacterial and antibiofilm activity of essential oil of clove against Listeria monocytogenes and Salmonella Enteritidis were investigated. The chemical composition of the oil was characterized by gas chromatography–mass spectrometry. Stock solution of the essential oil of clove was prepared in 95% (v/v) ethanol (EOC). The antibacterial assays were performed by disk diffusion assay and minim ...
DOI:
10.1177/10820132211013273

64. Antibacterial and antioxidant properties of flowers from Tecoma stans (L.) Juss. ex Kunth (Bignoniaceae)

Author:
Thaís Paula Rodrigues Gonçalves; Adriano Guimarães Parreira; Vanessa Samúdio dos Santos Zanuncio; Katyuce de Souza Farias; Denise Brentan da Silva; Luciana Alves Rodrigues dos Santos Lima
Source:
South African journal of botany 2022 v.144 pp. 156-165
ISSN:
0254-6299
Subject:
Enterococcus faecalis; Tecoma stans; amoxicillin; antioxidants; chemical composition; diabetes; diodes; ethanol; ethyl acetate; fatty acids; gas chromatography-mass spectrometry; glycosides; hexane; liquid chromatography; luteolin; methylene chloride; minimum inhibitory concentration; phytosterols; quercetin; spectrometers; tetracycline; traditional medicine
Abstract:
... Tecoma stans (L.) Kunth (Bignoniaceae), is popularly known as ipê-mirim, and used in traditional medicine for the treatment of diabetes and digestive problems. The aim of this work was to evaluate the antibacterial, antioxidant and synergistic potential of the ethanol extract and fractions from the T. stans flowers, and to determine their chemical composition. The hexane fraction (HEX) was analyze ...
DOI:
10.1016/j.sajb.2021.08.028

65. Antibacterial and genotoxic activity of Bixa orellana, a folk medicine and food supplement against multidrug resistant clinical isolates

Author:
Bipasa Kar; Brinda Chandar; Suman Smruti Rachana; Haimanti Bhattacharya; Debdutta Bhattacharya
Source:
Journal of herbal medicine 2022 v.32 pp. 100502
ISSN:
2210-8033
Subject:
Bixa orellana; DNA damage; ampicillin; antibacterial properties; dietary supplements; drug therapy; gas chromatography-mass spectrometry; genotoxicity; health services; herbal medicines; minimum inhibitory concentration; multiple drug resistance; synergism; traditional medicine; India
Abstract:
... Worldwide rapid spread of multi drug resistance among the community as well as healthcare associated bacterial infections has impaired the current antimicrobial therapy, warranting the search for other alternatives. The current study aimed to find the antibacterial activity of hydro-ethanolic extract of Bixa orellana, the seed of which is frequently used as a food supplement. Multidrug resistant s ...
DOI:
10.1016/j.hermed.2021.100502

66. Anticancer property of Selaginella bryopteris (L.) Bak. against hepatocellular carcinoma in vitro and in vivo

Author:
Lal Chand Pal; Arti Gautam; Veena Pande; Ch V Rao
Source:
Phytomedicine plus 2022 v.2 no.1 pp. 100201
ISSN:
2667-0313
Subject:
Selaginella bryopteris; acute toxicity; animal models; antineoplastic activity; antioxidant activity; apoptosis; carbon tetrachloride; caspase-3; caspase-9; catalase; cell viability; chemical constituents of plants; diethylnitrosamine; drugs; gallic acid; gas chromatography-mass spectrometry; gene expression; genes; hepatoma; histology; human cell lines; humans; imidazole; liver; liver function; lupeol; membrane potential; mitochondrial membrane; mortality; myo-inositol; neoplasm cells; palmitic acid; reactive oxygen species; reverse transcriptase polymerase chain reaction; silymarin; therapeutics; toxicity testing
Abstract:
... Hepatocellular carcinoma (HCC) is the most common and leading cause of cancer-related mortality worldwide. It has limited therapeutic options and side effects caused by current treatment methods. Selaginella bryopteris is used traditionally in the treatment of several health-related problems but mostly remains to be scientific validation. This study investigated the effect of Selaginella bryopteri ...
DOI:
10.1016/j.phyplu.2021.100201

67. Antifungal Activity of Volatile Organic Compounds from Bacillus velezensis CE 100 against Colletotrichum gloeosporioides

Author:
Vantha Choub; Sang-Jae Won; Henry B. Ajuna; Jae-Hyun Moon; Su-In Choi; Hyo-In Lim; Young Sang Ahn
Source:
Horticulturae 2022 v.8 no.6 pp. -
ISSN:
2311-7524
Subject:
Bacillus velezensis; Glomerella cingulata; Ziziphus; anthracnose; antifungal properties; cell membranes; culture media; fruits; gas chromatography-mass spectrometry; headspace analysis; mycelium; plant pathogens; solid phase microextraction; spore germination; volatile organic compounds; walnuts
Abstract:
... Colletotrichum gloeosporioides is the most prevalent phytopathogen, causing anthracnose disease that severely affects the production of various fruit trees, including walnut and jujube. In this study, the volatile organic compounds (VOCs) from Bacillus velezensis CE 100 disrupted the cell membrane integrity of C. gloeosporioides and reduced the spore germination by 36.4% and mycelial growth by 20. ...
DOI:
10.3390/horticulturae8060557

68. Antimicrobial Evaluation of Parkia speciosa-Coated Textile in Food Processing Settings

Author:
Leong Chean Ring; Tong Woei Yenn; Tan Wen Nee; Nurhanis Syafiqah Mohd nor Hamin; Cheng See Yuan; Sharwan Raziqin Suboh; Nurul Faezawaty Jamaludin; Nur Izlin Jannah Mubin
Source:
Journal of natural fibers 2022 v.19 no.2 pp. 586-596
ISSN:
1544-046X
Subject:
Parkia speciosa; antimicrobial properties; copper; cross contamination; detergents; durability; ethyl acetate; fabrics; food contamination; food processing; food production; foodborne illness; gas chromatography-mass spectrometry; growth retardation; microbial contamination; microbial load; minimum inhibitory concentration; silver; titanium; toxicity; zinc
Abstract:
... Microbial cross-contamination in the food production and processing environment is one of the major factors of food contamination and foodborne illness. The use of antimicrobial textiles can be a measure to reduce the bioburden in food production settings. However, application of synthetic antimicrobial agents such as silver, copper, titanium, and zinc in food systems is limited due to issues of t ...
DOI:
10.1080/15440478.2020.1758278

69. Antimicrobial Potential of Essential Oils from Aromatic Plant Ocimum sp.; A Comparative Biochemical Profiling and In-Silico Analysis

Author:
Prafull Salvi; Gulshan Kumar; Nishu Gandass; Kajal; Ashish Verma; Sivasubramanian Rajarammohan; Nilesh Rai; Vibhav Gautam
Source:
Agronomy 2022 v.12 no.3 pp. -
ISSN:
2073-4395
Subject:
Enterobacter cloacae; Escherichia coli; Fourier transform infrared spectroscopy; Sclerotinia sclerotiorum; agronomy; antibacterial properties; antifungal properties; antioxidant activity; chemical constituents of plants; computer simulation; free radicals; gas chromatography-mass spectrometry; growth retardation; methicillin-resistant Staphylococcus aureus; plant pathogenic fungi; thin layer chromatography
Abstract:
... Medicinal and aromatic plants (MAPs) are a rich source of bioactive compounds that are immensely important due to their potential use in pharmacological and agricultural applications. Here, we have evaluated the antimicrobial activity of essential oils (EOs) from three different species of Ocimum: O. gratissimum (EO1), O. tenuiflorum (EO2), and O. sanctum (EO3). The EOs were screened for antibacte ...
DOI:
10.3390/agronomy12030627

70. Antimicrobial activity of lime oil in the vapour phase against Listeria monocytogenes on ready-to-eat salad during cold storage and its possible mode of action

Author:
Prangthip Parichanon; Apsorn Sattayakhom; Nirundorn Matan; Narumol Matan
Source:
Food control 2022 v.132 pp. 108486
ISSN:
0956-7135
Subject:
Listeria monocytogenes; antibacterial properties; bacteria; cell membranes; cell walls; cold storage; food safety; gas chromatography-mass spectrometry; gentian violet; glass; limonene; mechanism of action; oils; permeability; ready-to-eat foods; refrigeration; refrigerators; salads; sensory evaluation; spoilage; terpineol; vapors; vegetables
Abstract:
... This study investigated the antimicrobial activity of lime oil (LO) at 50, 100, and 200 μl to control microbial spoilage and the survival of Listeria monocytogenes on ready-to-eat (RTE) mixed vegetable salads in 1-L glass boxes for 7 days in a refrigerator (~4 °C). The bacteriostatic properties of L. monocytogenes were investigated by cell constituent release analysis and crystal violet assays, wh ...
DOI:
10.1016/j.foodcont.2021.108486

71. Antimicrobial synergism and antibiofilm activities of Pelargonium graveolens, Rosemary officinalis, and Mentha piperita essential oils against extreme drug-resistant Acinetobacter baumannii clinical isolates

Author:
Ayse Humeyra Taskin Kafa; Rukiye Aslan; Cem Celik; Mursit Hasbek
Source:
Zeitschrift für Naturforschung 2022 v.77 no.3-4 pp. 95-104
ISSN:
1865-7125
Subject:
Acinetobacter baumannii; Mentha piperita; Pelargonium graveolens; alternative medicine; antibacterial properties; biofilm; chemical composition; colistin; essential oils; gas chromatography-mass spectrometry; minimum inhibitory concentration; rosemary; synergism
Abstract:
... Rosemary officinalis L., Pelargonium graveolens L., and Mentha piperita L., essential oils are used by complementary medicine specialists simultaneously with traditional antibiotics for treatment purposes. The chemical composition of essential oils was analyzed by the gas chromatography-mass spectrometry method. In vitro antibacterial and antibiofilm activities of the essential oils were tested ag ...
DOI:
10.1515/znc-2021-0079

72. Antioxidant activity assessment of Yingjisha sweet almond oil

Author:
Wei Zhao; Liwen Wang; Fan Yang; Ning Zhang; Jiahuan Fan; Shini Qin; Tong Shao; Xianao Xu; Shiyin Yan; Hongxing Guo; Jianying Li; Hui Zhao
Source:
International journal of food science & technology 2022 v.57 no.3 pp. 1773-1781
ISSN:
0950-5423
Subject:
2,2-diphenyl-1-picrylhydrazyl; Prunus dulcis; Saccharomyces cerevisiae; almond oil; antioxidant activity; carbon tetrachloride; catalase; food science; gas chromatography-mass spectrometry; genes; hydrogen peroxide; hydroxyl radicals; lipid peroxidation; mechanism of action; methyl palmitate; models; oleic acid; oxidation; stearic acid; technology; China
Abstract:
... Sweet almond is one of the main cash crops in Yingjisha, Xinjiang Autonomous Region, China. The composition of sweet almond oil (SAO) was analysed by gas chromatography‐mass spectrometry (GC‐MS). SAO’s antioxidant activities were investigated by measuring its scavenging ability with 1,1‐diphenyl‐2‐picrylhydrazyl (DPPH), 2,2′‐Azino‐bis (3‐ethylbenzothiazoline‐6‐sulfonic acid) (ABTS), hydroxyl radic ...
DOI:
10.1111/ijfs.15553

73. Antioxidant and antibacterial activities in 21 species of Indonesian sea cucumbers

Author:
Aji Nugroho; Iskandar Azmy Harahap; Ardi Ardiansyah; Asep Bayu; Abdullah Rasyid; Tutik Murniasih; Ana Setyastuti; Masteria Yunovilsa Putra
Source:
Journal of food science and technology 2022 v.59 no.1 pp. 239-248
ISSN:
0022-1155
Subject:
Actinopyga echinites; Bacillus subtilis; Holothuria atra; Staphylococcus aureus; Stichopus vastus; Vibrio cholerae; antibacterial properties; antioxidant activity; antioxidants; cosmetics; disk diffusion antimicrobial test; food science; gas chromatography-mass spectrometry; medicine; minimum inhibitory concentration; technology
Abstract:
... Sea cucumbers are marine organisms with uses in food, cosmetics, and medicine. This study aimed to identify Indonesian sea cucumbers with high antioxidant and antibacterial activities. Twenty-one sea cucumber species were used for this study. Antioxidant capacity was evaluated using the 2,2-diphenyl-β-picrylhydrazine assay. Antibacterial activity was assessed using the disk diffusion assay, wherea ...
DOI:
10.1007/s13197-021-05007-6

74. Antioxidant and antiproliferative activities of solvent fractions of broccoli (Brassica oleracea L.) sprout

Author:
Ji Soo Kim; Do Manh Cuong; Yu Bin Bae; Somi Kim Cho
Source:
Applied biological chemistry 2022 v.65 no.1 pp. 34
ISSN:
2468-0834
Subject:
Brassica oleracea; antioxidant activity; antioxidants; apoptosis; breast neoplasms; broccoli; butanol; catechin; chloroform; chlorogenic acid; ethyl acetate; gas chromatography-mass spectrometry; hexane; high performance liquid chromatography; methanol; oleic acid; p-coumaric acid; polyphenols; quercetin; rutin; solvents; viability
Abstract:
... Crude methanol extract (ME) of broccoli (Brassica oleracea L.) sprout was fractioned by hexane, chloroform, ethyl acetate, butanol, and water. The contents of total polyphenols (19.89 mg GAE/g) and flavonoids (10.06 mg RE/g) were significantly higher in the butanol fraction (BF) than in the other fractions. The BF showed the highest DPPH (EC₅₀ = 0.524 mg/mL) and ABTS (EC₅₀ = 0.180 mg/mL) radical s ...
DOI:
10.1186/s13765-022-00700-2

75. Antitrypanosomal properties of Anogeissus leiocarpa extracts and their inhibitory effect on trypanosome alternative oxidase

Author:
Abdullah M. Tauheed; Mohammed Mamman; Abubakar Ahmed; Mohammed M. Suleiman; Emmanuel O. Balogun
Source:
Phytomedicine plus 2022 v.2 no.2 pp. 100223
ISSN:
2667-0313
Subject:
African trypanosomiasis; Anogeissus leiocarpa; Trypanosoma; acrylic acid; blood serum; chemical constituents of plants; dibutyl phthalate; diminazene; drug resistance; drugs; ethyl acetate; gas chromatography-mass spectrometry; malondialdehyde; methanol; oleic acid; oxidoreductases; palmitic acid; parasites; pathogenicity; phenol; phthalic acid; phytochemicals; socioeconomics; Sub-Saharan Africa
Abstract:
... African trypanosomiasis is a protozoan disease with huge socio-economic burden to sub-Saharan African exceeding US$4.6 annual loss. To mitigate the incidence of trypanosomal drug resistance, efforts are geared towards discovery of molecules, especially from natural products, with potential to inhibit important molecular target (trypanosome alternative oxidase, TAO) in trypanosomes that are critica ...
DOI:
10.1016/j.phyplu.2022.100223

76. Antitumor and antimicrobial activity of fatty acids from green microalga Coelastrella sp. BGV

Author:
Tanya Toshkova-Yotova; Ani Georgieva; Ivan Iliev; Svetoslav Alexandrov; Albena Ivanova; Plamen Pilarski; Reneta Toshkova
Source:
South African journal of botany 2022 pp. -
ISSN:
0254-6299
Subject:
Candida albicans; Klebsiella pneumoniae; Pseudomonas aeruginosa; antifungal properties; antineoplastic activity; apoptosis; botany; fatty acid composition; fluorescence microscopy; fungi; gas chromatography-mass spectrometry; humans; linoleic acid; microalgae; neoplasms; oleic acid; palmitic acid; pathogens; polyunsaturated fatty acids; therapeutics; Bulgaria
Abstract:
... Green microalgae are a valuable source of biologically active substances with antitumor and antimicrobial effects. Coelastrella sp. BGV is a strain of green microalga isolated in Bulgaria. The aim of the study was to analyze the fatty acid profile of Coelastrella sp. BGV and to assess the antitumor and antimicrobial activities of the extracted free fatty acids. The fatty acid content of a total li ...
DOI:
10.1016/j.sajb.2022.04.003

77. Anti‐Vibrio activity of Pseudoalteromonas xiamenensis STKMTI.2, a new potential vibriosis biocontrol bacterium in marine aquaculture

Author:
Desy Putri Handayani; Alim Isnansetyo; Indah Istiqomah; Jumina Jumina
Source:
Aquaculture research 2022 v.53 no.5 pp. 1800-1813
ISSN:
1355-557X
Subject:
Pseudoalteromonas; Vibrio harveyi; agar; bacteria; biological control; coculture; ethyl acetate; gas chromatography-mass spectrometry; mariculture; minimum inhibitory concentration; nucleotide sequences; research; sequence analysis; vibriosis; Indonesia
Abstract:
... We isolated Pseudoalteromonas xiamenensis STKMTI.2 from the mangrove sediments of Setokok Island, Indonesia. This study aimed to identify the bacterium, investigate antagonistic properties and minimum inhibitory concentration, and detect the active compounds using gas chromatography–mass spectrometry. The bacterium was identified using a biochemical test and 16S rDNA sequence analysis. Bioactive c ...
DOI:
10.1111/are.15708

78. Application of gas chromatography-mass spectrometry-based metabolomics in food science and technology

Author:
Sastia Prama Putri; Muhammad Maulana Malikul Ikram; Arisa Sato; Hadi Akbar Dahlan; Della Rahmawati; Yukina Ohto; Eiichiro Fukusaki
Source:
Journal of bioscience and bioengineering 2022 v.133 no.5 pp. 425-435
ISSN:
1389-1723
Subject:
cultivars; derivatization; food fraud; food industry; food quality; gas chromatography-mass spectrometry; metabolites; metabolomics; shelf life; stress response
Abstract:
... Metabolomics is a tool used for quantitative assessment of metabolites that has been applied extensively in the field of food science. Recently, metabolomics-based gas chromatography-mass spectrometry (GC/MS) is becoming a common tool for analyzing, not only volatile compounds, but also non-volatile compounds due to the development of various derivatization methods. Although several studies have r ...
DOI:
10.1016/j.jbiosc.2022.01.011

79. Aroma characterization and their changes during the processing of black teas from the cultivar, Camellia sinensis (L.) O. Kuntze cv. Jinmudan

Author:
Junyao Li; Changhong Hao; Huiyan Jia; Jing Zhang; Huiting Wu; Jingming Ning; Rangjian Wang; Wei-Wei Deng
Source:
Journal of food composition and analysis 2022 v.108 pp. 104449
ISSN:
0889-1575
Subject:
Camellia sinensis; black tea; cultivars; evaporation; fermentation; flavor; food composition; fruits; gas chromatography-mass spectrometry; geraniol; leaves; linalool; odors; olfactometry; solvents
Abstract:
... Jinmudan (JMD) black tea is processed from the JMD cultivar (Camellia sinensis (L.) O. Kuntze cv. Jinmudan). Dried JMD black tea (JMD-D) received a score of 7.43 in the quantitative descriptive analysis, indicating that it had the strongest fruity flavor. Many volatile compounds (129) were identified by solvent assisted flavor evaporation and gas chromatograph mass spectrometry. In total, 26 aroma ...
DOI:
10.1016/j.jfca.2022.104449

80. Aroma effects of key volatile compounds in Keemun black tea at different grades: HS-SPME-GC-MS, sensory evaluation, and chemometrics

Author:
Dan Su; Jiao-Jiao He; Yan-Zhu Zhou; Ya-Li Li; Hong-Jie Zhou
Source:
Food chemistry 2022 v.373 pp. 131587
ISSN:
0308-8146
Subject:
black tea; chemometrics; discriminant analysis; flavor; food chemistry; gas chromatography-mass spectrometry; geraniol; headspace analysis; linalool; methyl salicylate; models; odors; sensory evaluation; solid phase microextraction
Abstract:
... The present study aimed to explore the relationship between the grade and the characteristic aroma in Keemun black tea (KBT). Headspace solid-phase microextraction (HS-SPME), gas chromatography-mass spectrometry (GC-MS), sensory evaluation, and chemometrics were employed to determine the changes in the flavor evolution of KBT at grade. The results showed that a total of 110 volatile components wer ...
DOI:
10.1016/j.foodchem.2021.131587

81. Artificial intelligence modeling and molecular docking to analyze the laccase delignification process of rice straw by Comamonas testosteroni FJ17

Author:
Lijie Wang; Chao Xue; Gary Owens; Zuliang Chen
Source:
Bioresource technology 2022 v.345 pp. 126565
ISSN:
0960-8524
Subject:
Comamonas testosteroni; X-ray diffraction; amino acids; artificial intelligence; bioinformatics; crystal structure; delignification; gas chromatography-mass spectrometry; genes; hydrogen bonding; laccase; lignin; lignin content; liquid chromatography; molecular weight; rice straw
Abstract:
... The laccase enzymatic characteristics and delignification processes of rice straw by Comamonas testosteroni FJ17 were investigated. Artificial intelligence modeling and molecular docking revealed the specific functional properties involved in the interaction between laccase and lignin compounds with a maximum laccase activity of 2016.7 U L⁻¹ at 24 h. Scanning electron microscopy and X-ray diffract ...
DOI:
10.1016/j.biortech.2021.126565

82. Aspidopterys obcordata vine inulin fructan affects urolithiasis by modifying calcium oxalate crystallization

Author:
Peng Sun; Shang-Gao Liao; Rao-Qiong Yang; Chuan-Li Lu; Kai-Long Ji; Dong-Hua Cao; Hua-Bin Hu; Jian-Mei Lu; Xing-Zhen Song; Min Wu; Hui-Zhen Jia; Chun-Fen Xiao; Zhi-Wei Ma; You-Kai Xu
Source:
Carbohydrate polymers 2022 pp. 119777
ISSN:
0144-8617
Subject:
Drosophila; calcium oxalate; crystallization; gas chromatography-mass spectrometry; gel chromatography; inulin; nuclear magnetic resonance spectroscopy; renal calculi; vines
Abstract:
... Aspidopterys obcordata vine is a Chinese Dai ethnic herb used to treat urolithiasis. However, the material basis and underlying mechanisms remain undefined. In this study, a 2.3 kD inulin-like A. obcordata fructan (AOFOS) was isolated by size exclusion column chromatography and characterized by ultrahigh-performance liquid chromatography-ion trap-time of flight mass spectrometry (UPLC-IT-TOF-MS), ...
DOI:
10.1016/j.carbpol.2022.119777

83. Assessment of PM2.5, TVOCs, comfort parameters, and volatile organic solvents of paint at carpenter workshop and exposure to residential houses in Deir Ballout in Palestine

Author:
S. Jodeh; A. Chakir; Y. Massad; E. Roth
Source:
International journal of environmental science and technology 2022 v.19 no.2 pp. 775-784
ISSN:
1735-1472
Subject:
carbon dioxide; carbon monoxide; formaldehyde; furniture; gas chromatography-mass spectrometry; nitrogen dioxide; ozone; particulates; relative humidity; temperature; volatile organic compounds; Palestine
Abstract:
... Volatile organic compounds emitted from their manufacturing have a high recycling value but contribute negatively to the environment. Paints as a significant source of volatile organic compounds could largely contribute to their emissions. This study employed four different locations close to a carpenter workshop where they make furniture and spray them with paint. The four locations (H1, H2, H3 a ...
DOI:
10.1007/s13762-020-02877-9

84. Assessment of Sources and Health Risks of Polycyclic Aromatic Hydrocarbons (PAHs) in the Street Dust of Dezful City

Author:
F. Sadeghdoust; N. Ghanavati; A. Nazarpour
Source:
̒Ulūm-i āb va khāk 2022 v.25 no.4 pp. 47-61
ISSN:
2476-5554
Subject:
benzene; breathing; carcinogenicity; combustion; dust; gas chromatography-mass spectrometry; human health; ingestion; molecular weight; mutagens; petroleum; pollution; risk; traffic
Abstract:
... Street dust is mainly affected by the pollution of polycyclic aromatic hydrocarbons (PAHs). PAHs are a group of organic pollutants consisting of two or more benzene rings and are mainly produced during incomplete combustion. PAHs have attracted widespread attention due to their high carcinogenic and mutagenic properties in humans. Therefore, the purpose of this study was to investigate the sources ...

85. Assessment of characteristics aroma of heat pump drying (HPD) jujube based on HS-SPME/GC–MS and e-nose

Author:
Jianxin Song; Jing Han; Li Fu; Hongli Shang; Linghui Yang
Source:
Journal of food composition and analysis 2022 v.110 pp. 104402
ISSN:
0889-1575
Subject:
Ziziphus; acetic acid; cluster analysis; electronic nose; flavor; food composition; gas chromatography-mass spectrometry; headspace analysis; heat pumps; hexanoic acid; industry; odors; principal component analysis; solid phase microextraction; temperature
Abstract:
... Aroma is a key factor that determines the flavor quality of dry jujubes. In this study, characteristics aroma of heat pump drying (HPD) jujube was assessed. Headspace solid phase micro-extraction combined with gas chromatography-mass spectrometry (HS-SPME/GC–MS) and electronic nose (e-nose) method was used for HPD jujube aroma analysis. Results showed that acetic acid (40.0 ∼ 89.2 μg/kg), hexanoic ...
DOI:
10.1016/j.jfca.2022.104402

86. Assessment of components related to flavor and taste in Tan-lamb meat under different silage-feeding regimens using integrative metabolomics

Author:
Bing Wang; Xingang Zhao; Boyan Zhang; Yimeng Cui; Muzaipaier Nueraihemaiti; Qifang Kou; Hailing Luo
Source:
Food chemistry: X 2022 v.14 pp. 100269
ISSN:
2590-1575
Subject:
alfalfa silage; biomarkers; corn silage; diet; flavor; food chemistry; gas chromatography-mass spectrometry; hydrophilicity; lamb meat; leaves; metabolomics; mulberries; taste; trimethylamine; ultra-performance liquid chromatography
Abstract:
... Two untargeted metabolomics approaches based on gas chromatography mass spectrometry and ultra-high-performance liquid chromatography quadrupole time-of-flight mass spectrometry were used to identify the effects of different feeding regimes (concentrate, corn silage, alfalfa silage, mulberry leaf silage) on the potential meat flavor and taste components of Tan-lamb. Among 31 identified volatiles, ...
DOI:
10.1016/j.fochx.2022.100269

87. Assessment of dehulling effect on volatiles, phenolic compounds and antioxidant activities of faba bean seeds and flours

Author:
Imene Rajhi; Mondher Boulaaba; Bechir Baccouri; Fatma Rajhi; Jamila Hammami; Fathi Barhoumi; Guido Flamini; Haythem Mhadhbi
Source:
South African journal of botany 2022 v.147 pp. 741-753
ISSN:
0254-6299
Subject:
Vicia faba; antioxidant activity; antioxidants; ascorbic acid; cultivars; faba beans; flavonoids; gas chromatography-mass spectrometry; hulling
Abstract:
... The effects of dehulling and milling of seeds on the volatiles of two Vicia faba L. cultivars were evaluated using headspace-solid phase micro-extraction (HS-SPME) coupled to gas chromatography–mass spectrometry (GC-MS). The phenolic constituents and antioxidants activities were also estimated on the same kind of samples. A total of 36 volatiles belonging to six different chemical classes were ide ...
DOI:
10.1016/j.sajb.2022.03.010

88. Assessment of genotoxicity and oxidative stress in pregnant women contaminated to organochlorine pesticides and its correlation with pregnancy outcome

Author:
Naina Dwivedi; Abbas Ali Mahdi; Sujata Deo; Mohammad Kaleem Ahmad; Durgesh Kumar
Source:
Environmental research 2022 v.204 pp. 112010
ISSN:
0013-9351
Subject:
aldrin; birth weight; blood serum; catalase; chlorinated hydrocarbons; comet assay; dieldrin; gas chromatography-mass spectrometry; genotoxicity; gestational age; glutathione-disulfide reductase; malondialdehyde; mutagens; oxidative stress; peroxidase; pregnancy outcome; quantitative analysis; research; tail; xenobiotics; India
Abstract:
... The present study was aimed to assess the correlation between transplacental transfer of xenobiotics and resulting biochemical alterations (including genotoxicity and oxidative stress) in non-occupational pregnant women of North India along with the effect on pregnancy outcomes. Maternal and cord blood samples were collected from 221 healthy mother-infant couples and divided according to their ges ...
DOI:
10.1016/j.envres.2021.112010

89. Assessment of phytochemicals, antioxidant, antibacterial activity, and profiling of functional molecules in novel freshwater fern Salvinia cucullata Roxb.

Author:
P. Santhosh; T.G. Nithya; S. Gokila Lakshmi; G. Lincy Shiny Marino; B. Balavaishnavi; M. Kamaraj
Source:
South African journal of botany 2022 pp. -
ISSN:
0254-6299
Subject:
2,2-diphenyl-1-picrylhydrazyl; Bacillus subtilis; Salvinia; antibacterial properties; antioxidant activity; aquatic weeds; assets; dose response; ferns and fern allies; flavonoids; freshwater; gas chromatography-mass spectrometry; methicillin-resistant Staphylococcus aureus; saponins; sulfonic acids; superoxide anion; value added; vitamin E
Abstract:
... Salvinia cucullata is a freshwater weed available abundantly in nature and also a troublesome aquatic weed globally. This study was conducted to know the chances of using invasive waste fern S. cucullata as a useful product in different biological applications and to explore the functional molecules and the biological properties of ethanolic extracts of S. cucullata (EESC). The highest yield of to ...
DOI:
10.1016/j.sajb.2022.02.030

90. Association of residual feed intake with peripartal ruminal microbiome and milk fatty acid composition during early lactation in Holstein dairy cows

Author:
Huimin Zhang; Ahmed A. Elolimy; Haji Akbar; Lam Phuoc Thanh; Zhangping Yang; Juan J. Loor
Source:
Journal of dairy science 2022 v.105 no.6 pp. 4971-4986
ISSN:
0022-0302
Subject:
Acetobacter; Bifidobacterium; Desulfovibrio; Erysipelotrichaceae; Holstein; Internet; Lachnospiraceae; Papillibacter; bacteria; digesta; dry matter intake; early lactation; fatty acid composition; feed conversion; gas chromatography-mass spectrometry; genes; glucose; microbiome; milk; milk fatty acids; milk yield; monounsaturated fatty acids; regression analysis; statistical models; total mixed rations
Abstract:
... Residual feed intake (RFI) is a moderately heritable trait of feed efficiency in dairy cows. The main objective of the present study was to assess potential differences in the ruminal microbiome, milk fatty acid (FA) composition, and plasma concentrations of glucose, nonesterified fatty acids (NEFA), and β-hydroxybutyrate between the most (M-EFF) and the least efficient (L-EFF) dairy cows during e ...
DOI:
10.3168/jds.2021-21454

91. Attraction and toxicity: Ways volatile organic compounds released by Pochonia chlamydosporia affect Meloidogyne incognita

Author:
Paulo Victor Magalhães Pacheco; Vicente Paulo Campos; Willian César Terra; Marcio Pozzobon Pedroso; Letícia Lopes de Paula; Maysa Siqueira Gonçalves da Silva; Thalita Suelen Avelar Monteiro; Leandro Grassi de Freitas
Source:
Microbiological research 2022 v.255 pp. 126925
ISSN:
0944-5013
Subject:
Meloidogyne incognita; Pochonia chlamydosporia; eggs; females; fumigants; fumigation; gas chromatography-mass spectrometry; nematicidal properties; plant parasitic nematodes; research; toxicity; toxins; volatile organic compounds
Abstract:
... The production of volatile organic compounds (VOCs) acting against plant-parasitic nematodes has been characterized in different fungi; however, the role of VOCs emitted by Pochonia chlamydosporia in its trophic interaction with Meloidogyne incognita is still unknown. The aim of this study was to determine the effects of VOCs emitted by P. chlamydosporia strain Pc-10 on different stages (eggs, juv ...
DOI:
10.1016/j.micres.2021.126925

92. Attraction of whitefly Aleurodicus cocois mediated by cashew volatiles

Author:
Wenner V. A. Saraiva; Nívia S. Dias-Pini; Elenilson G. Alves Filho; José W. S. Melo; Marilene Fancelli; Cristiane R. Coutinho; Guilherme J. Zocolo; Tigressa H. S. Rodrigues; Poliana M. Duarte; Vitor H. M. Macedo; Elaine S. S. Goiana
Source:
Phytoparasitica 2022 v.50 no.2 pp. 399-410
ISSN:
0334-2123
Subject:
Aleurodicus; adults; air; carene; gas chromatography-mass spectrometry; insects; limonene; myrcene; olfactometers; principal component analysis; solid phase microextraction; volatile organic compounds
Abstract:
... In this paper we hypothesize that the attraction of the cashew whitefly, Aleurodicus cocois, depends on volatile emissions from cashew plants. To test this hypothesis, we determined the degree of A. cocois infestation in dwarf-cashew clones: CCP 76, EMBRAPA 51 and PRO 143/7 under field conditions, we evaluated the behavioral response of A. cocois adult females to plant volatiles of these clones in ...
DOI:
10.1007/s12600-021-00968-y

93. Authentication of recycled plastic content in water bottles using volatile fingerprint and chemometrics

Author:
Rosa Peñalver; Cristina Marín; Natalia Arroyo-Manzanares; Natalia Campillo; Pilar Viñas
Source:
Chemosphere 2022 v.297 pp. 134156
ISSN:
0045-6535
Subject:
DCB (herbicide); benzaldehyde; benzene; chemometrics; data collection; databases; gas chromatography-mass spectrometry; headspace analysis; polyethylene terephthalates; recycled plastic; statistical models; styrene; volatile organic compounds; xylene
Abstract:
... The environment is threatened by the continuously increasing volume of plastic residue. Plastic recycling is an interesting alternative to mitigate this problem. However, recycled plastic products may have pollutants from their recycling process, collecting system and/or previous life which may hurt consumers health, thus making it key to authenticate and characterize recycled materials. An innova ...
DOI:
10.1016/j.chemosphere.2022.134156

94. Automated headspace solid-phase microextraction-gas chromatography-mass spectrometry of trihalomethane and typical nitrogenous disinfection by-products in water

Author:
Bao Liu; Xing Zheng; Yanchun Ke; Xin Cao; Qian Sun; Hua Wu
Source:
Journal of chromatography 2022 v.1673 pp. 463068
ISSN:
0021-9673
Subject:
automation; carcinogenicity; chloropicrin; desorption; detection limit; disinfection; gas chromatography-mass spectrometry; headspace analysis; mutagenesis; photochemistry; public health; solid phase microextraction; temperature
Abstract:
... Disinfection by-products (DBPs) are detrimental to public health owing to their carcinogenicity and mutagenesis. Fast and reliable determination of DBPs is essential for ascertaining their formation, characteristics, and occurrence. This study reported an automated headspace solid-phase microextraction gas chromatography-mass spectrometry (HS-SPME-GC-MS) method for quantifying typical nitrogenous- ...
DOI:
10.1016/j.chroma.2022.463068

95. Automatic and non-targeted analysis of the volatile profile of natural and alkalized cocoa powders using SBSE-GC-MS and chemometrics

Author:
Maribel Alexandra Quelal-Vásconez; Riccardo Macchioni; Greta Livi; Édgar Pérez-Esteve; María Jesús Lerma-García; Pau Talens; José Manuel Barat; Mikael Agerlin Petersen; Rasmus Bro
Source:
Food chemistry 2022 v.389 pp. 133074
ISSN:
0308-8146
Subject:
acetophenones; alkalinization; chemometrics; discriminant analysis; factor analysis; food chemistry; furfural; gas chromatography-mass spectrometry; principal component analysis; quality control; toluene; volatile compounds
Abstract:
... A total of 56 key volatile compounds present in natural and alkalized cocoa powders have been rapidly evaluated using a non-target approach using stir bar sorptive extraction gas chromatography mass spectrometry (SBSE-GC–MS) coupled to Parallel Factor Analysis 2 (PARAFAC2) automated in PARADISe. Principal component analysis (PCA) explained 80% of the variability of the concentration, in four PCs, ...
DOI:
10.1016/j.foodchem.2022.133074

96. Bacterial Volatile-Mediated Suppression of Root-Knot Nematode (Meloidogyne incognita)

Author:
Ting Yang; Yi Xin; Tongyao Liu; Zhengfeng Li; Xingzhong Liu; Yunpeng Wu; Mingfeng Wang; Meichun Xiang
Source:
Plant disease 2022 v.106 no.5 pp. 1358-1365
ISSN:
0191-2917
Subject:
Meloidogyne incognita; Ochrobactrum; benzaldehyde; biological control; dimethyl disulfide; fermentation; filtrates; gas chromatography-mass spectrometry; greenhouse experimentation; juveniles; lethal concentration 50; mortality; nematicidal properties; nematicides; rhizosphere; root galls; root-knot nematodes; sustainable agriculture; tissue culture
Abstract:
... Root-knot nematodes (Meloidogyne spp.) are obligate plant parasites that cause severe economic losses to agricultural crops worldwide. Because of serious health and environmental concerns related to the use of chemical nematicides, the development of efficient alternatives is of great importance. Biological control through exploiting the potential of rhizosphere microorganisms is currently accepte ...
DOI:
10.1094/PDIS-06-21-1139-RE

97. Balance of Δ5-and Δ7-sterols and stanols in halophytes in connection with salinity tolerance

Author:
Olga A. Rozentsvet; Ekaterina R. Kotlova; Elena S. Bogdanova; Viktor N. Nesterov; Svetlana V. Senik; Aleksey L. Shavarda
Source:
Phytochemistry 2022 v.198 pp. 113156
ISSN:
0031-9422
Subject:
Amaranthaceae; Artemisia; Limonium; Tamaricaceae; gas chromatography-mass spectrometry; halophytes; permeability; plant adaptation; salt tolerance; stigmasterol
Abstract:
... Sterols (STs) have a key role in regulating the fluidity and permeability of membranes in plants (phytosterols) that have wide structural diversity. We studied the effect of structural STs diversity on salt tolerance in halophytes. Specifically, we used gas chromatography–mass spectrometry (GC–MS), including two-dimensional gas chromatography–mass spectrometry (GCxGC–MS), to assess the STs composi ...
DOI:
10.1016/j.phytochem.2022.113156

98. Behavioural responses of diapausing Halyomorpha halys (Hemiptera: Pentatomidae) to conspecific volatile organic compounds

Author:
Laura Nixon; William R. Morrison III; Kevin B. Rice; Stephen Goldson; Eckehard G. Brockerhoff; Ashot Khrimian; Michael Rostás; Tracy C. Leskey
Source:
Journal of applied entomology 2022 v.146 no.3 pp. 319-327
ISSN:
0931-2048
Subject:
Halyomorpha halys; agitation; alarm pheromones; conspecificity; diapause; entomology; exports; financial economics; gas chromatography-mass spectrometry; glass; group size; odors; overwintering; pests; volatile organic compounds; Asia; Australia; Europe; New Zealand
Abstract:
... The brown marmorated stink bug, Halyomorpha halys Stål (Hemiptera: Pentatomidae), is an invasive pest in America, Europe and Asia and causes serious economic loss to crops, and nuisance problems during overwintering. Uninvaded southern hemisphere countries, such as New Zealand and Australia, see an increase in H. halys border interceptions during the northern hemisphere populations’ overwintering ...
DOI:
10.1111/jen.12955

99. Bio-catalytic transesterification of mustard oil for biodiesel production

Author:
Qurrat Ul Ain Rana; Muhammad Irfan; Safia Ahmed; Fariha Hasan; Aamer Ali Shah; Samiullah Khan; Fazal Ur Rehman; Haji Khan; Meiting Ju; Weizun Li; Malik Badshah
Source:
Biofuels 2022 v.13 no.1 pp. 69-76
ISSN:
1759-7277
Subject:
biocatalysis; biodiesel; cost effectiveness; erucic acid; fatty acid methyl esters; feedstocks; gas chromatography-mass spectrometry; linoleic acid; linolenic acid; mustard oil; oleic acid; stearic acid; transesterification
Abstract:
... The depletion of non-renewable fossil fuels and a surge in their prices have led researchers to seek alternative, renewable energy sources; among them, biodiesel is a good option, especially in the ever-growing global transport sector. Mustard oil is a potential feedstock for biodiesel production, and because it is non-edible it avoids the food versus fuel feud. Biocatalytic transesterification of ...
DOI:
10.1080/17597269.2019.1655907

100. Bioactive Compounds and Antifungal Activity of Leaves and Fruits Methanolic Extracts of Ziziphus spina-christi L.

Author:
Amany A. El-Shahir; Deiaa A. El-Wakil; Arafat Abdel Hamed Abdel Latef; Nora H. Youssef
Source:
Plants 2022 v.11 no.6 pp. -
ISSN:
2223-7747
Subject:
Alternaria alternata; Ziziphus spina-christi; antifungal properties; decane; ellagic acid; fungal growth; gallic acid; gas chromatography-mass spectrometry; high performance liquid chromatography; leaf extracts; leaves; methanol; opportunistic pathogens; pathogenicity; phenol; quercetin; tomatoes
Abstract:
... Zizyphus spina-christi L. has antimicrobial properties because of the presence of biologically active compounds. Alternaria is an opportunistic pathogen that causes leaf spots, rots, and blights on a variety of plant parts. This study aimed to reduce the usage of synthetically derived fungicides. Identification of the bioactive components present in leaves and fruits methanolic extracts of Z. spin ...
DOI:
10.3390/plants11060746