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1. Analysis of flavor formation during production of Dezhou braised chicken using headspace-gas chromatography-ion mobility spec-trometry (HS-GC-IMS)

Author:
Wensheng Yao; Yingxuan Cai; Dengyong Liu; Yu Chen; Jianrong Li; Mingcheng Zhang; Na Chen; Hao Zhang
Source:
Food chemistry 2022 v.370 pp. 130989
ISSN:
0308-8146
Subject:
2-heptanone; benzaldehyde; chickens; deep fat frying; ethanol; ethyl acetate; flavor; food chemistry; furans; pentanols; poultry industry; pyrazines; spectroscopy; terpenoids
Abstract:
... In order to help the poultry industry to generate higher quality products, the headspace-gas chromatography-ion mobility spectrometry (HS-GC-IMS) technique was used to identify volatile substances formed during the processing of Dezhou braised chicken (DBC). A total of 37 volatile substances including aldehydes, alcohols, ketones, esters, terpenoids, furans and pyrazines were identified during DBC ...
DOI:
10.1016/j.foodchem.2021.130989

2. Atomic-level insight into effect of substrate concentration and relative humidity on photocatalytic degradation mechanism of gaseous styrene

Author:
Jiangyao Chen; Liyun Zhang; Weikun Zhu; Guiying Li; Taicheng An
Source:
Chemosphere 2022 v.291 pp. 133074
ISSN:
0045-6535
Subject:
benzaldehyde; benzoic acid; benzyl alcohol; desorption; furans; geochemistry; oxygen isotopes; photocatalysis; relative humidity; styrene
Abstract:
... Substrate concentration and relative humidity (RH) impact the photocatalytic efficiency of industrial aromatic hydrocarbons, but how they influence intermediate formation and degradation pathway remains unclear. With the help of oxygen isotope tracing method, the effects of these two environmental parameters on degradation mechanism of styrene were revealed at atomic level. Increasing styrene conc ...
DOI:
10.1016/j.chemosphere.2021.133074

3. Boosting the catalytic behavior and stability of a gold catalyst with structure regulated by ceria

Author:
Jingjie Luo; Fengxiang Shan; Sihan Yang; Yixue Zhou; Changhai Liang
Source:
RSC advances 2022 v.12 no.3 pp. 1384-1392
ISSN:
2046-2069
Subject:
benzaldehyde; benzyl alcohol; carbon nanotubes; catalysts; catalytic activity; gold; nanogold; oxidation; oxygen
Abstract:
... In this work, a series of colloidal gold nanoparticles with controllable sizes were anchored on carbon nanotubes (CNT) for the aerobic oxidation of benzyl alcohol. The intrinsic influence of Au particles on the catalytic behavior was unraveled based on different nanoscale-gold systems. The Au/CNT-A sample with smaller Au sizes deserved a faster reaction rate, mainly resulting from the higher dispe ...
DOI:
10.1039/d1ra07686h

4. Changes in the textural and flavor characteristics of egg white emulsion gels induced by lipid and thermal treatment

Author:
Xiaole Xiang; Gan Hu; Zhuosi Yu; Xianghong Li; Faxiang Wang; Xiayin Ma; Yiqun Huang; Yongle Liu; Lei Chen
Source:
Innovative food science & emerging technologies 2022 v.79 pp. 103054
ISSN:
1466-8564
Subject:
benzaldehyde; chewiness; egg albumen; emulsifying; emulsions; flavor; gels; hardness; heat treatment; octanoic acid; peanut oil; phenol; phthalic acid; texture
Abstract:
... Egg white (EW) and peanut oil (PO), show good gel and flavor properties and were used to study the effects of lipid and heat treatment on the texture and flavor of emulsion gels. Good emulsification was obtained at low protein concentrations, and extremely high or low protein concentrations were essential for the formation of emulsion gel hardness, whereas the chewiness of emulsion gels with inter ...
DOI:
10.1016/j.ifset.2022.103054

5. Characterization of metabolite, genome and volatile organic compound changes provides insights into the spoilage and cold adaptive markers of Acinetobacter johnsonii XY27

Author:
Xin-Yun Wang; Jing Xie
Source:
Lebensmittel-Wissenschaft + Technologie 2022 v.162 pp. 113453
ISSN:
0023-6438
Subject:
Acinetobacter johnsonii; Thunnus obesus; benzaldehyde; biofilm; biomarkers; choline; cold; gas chromatography-mass spectrometry; histidine; metabolism; metabolites; metabolome; metabolomics; nucleotide sequences; proteinases; pyruvic acid; secretion; sequence analysis; serine; spoilage; sulfur; temperature; threonine; tryptophan; volatile organic compounds
Abstract:
... Acinetobacter johnsonii is a critical threat to aquatic products. However, the complete genome sequences and metabolome knowledge of A. johnsonii are still limited with respect to spoilage-associated and cold adaptive characteristics. The aim of this study was to report the spoilage and cold adaptive markers of Acinetobacter johnsonii XY27 from spoiled bigeye tuna (Thunnus obesus) by complete geno ...
DOI:
10.1016/j.lwt.2022.113453

6. Characterization of the Flavor Precursors and Flavor Fingerprints in Grazing Lambs by Foodomics

Author:
Yuanyuan Yang; Jing Li; Xueting Jia; Qingyu Zhao; Qing Ma; Yanan Yu; Chaohua Tang; Junmin Zhang
Source:
Foods 2022 v.11 no.2 pp. -
ISSN:
2304-8158
Subject:
Tan sheep; amino acids; benzaldehyde; consumer preferences; diet; electronic nose; electronic tongue; ethyl acetate; flavor; foodomics; glycolipids; hydrophilicity; linoleic acid; meat quality; metabolites; metabolomics; nutritive value; odors; pastures; taste; China
Abstract:
... Tan sheep are greatly preferred by consumers in China because of their nutritional value and unique flavor. However, the meat quality of Tan sheep has decreased due to the change in feeding systems from grazing to indoor. Studies investigating the mechanisms for the decrease in meat quality are limited. A total of 28 Tan sheep were randomly allocated to two treatments, receiving a concentrated die ...
DOI:
10.3390/foods11020191

7. Characterization of the flavor and nutritional value of coconut water vinegar based on metabolomics

Author:
Senzheng Xu; Zewei Ma; Ying Chen; Jiaxin Li; Haiyan Jiang; Taiqi Qu; Weimin Zhang; Congfa Li; Sixin Liu
Source:
Food chemistry 2022 v.369 pp. 130872
ISSN:
0308-8146
Subject:
acetates; acetic acid; almonds; aspartic acid; bananas; benzaldehyde; coconut water; coconuts; flavor; food chemistry; food industry; glutamic acid; liquid state fermentation; metabolomics; nutrition; nutritive value; odors; phenylalanine; pyruvic acid; raw materials; sensory evaluation; vinegars; wastes
Abstract:
... Tender Coconut water is popular for its deliciousness and nutrition. Mature coconut water, usually discarded as waste in the coconut kernel-based food industry due to its unpleasant flavor, was used as a raw material to make vinegar by liquid-state fermentation. The compounds in fresh coconut water with high odor activity values (OAVs) were isovaleric acid and acetic acid, with pungent sour tastes ...
DOI:
10.1016/j.foodchem.2021.130872

8. Chitosan films as pH-responsive sustained release systems of naturally occurring antifungal volatile compounds

Author:
R. Heras-Mozos; R. Gavara; P. Hernández-Muñoz
Source:
Carbohydrate polymers 2022 v.283 pp. 119137
ISSN:
0144-8617
Subject:
benzaldehyde; chemical structure; chitosan; citral; fruits; gas chromatography; glucosamine; hydrolysis; imines; pH; polymers; spoilage; spoilage fungi; vegetables
Abstract:
... Reversible imine bonds have been used as a strategy to develop pH-dependent antifungal systems based on grafting benzaldehyde and citral onto the surface of chitosan films. Formation of imine bonds was confirmed by ATR-FTIR and XPS. Aldehyde unit incorporation respect to glucosamine units of chitosan polymer was estimated by elemental analysis. The rate and extent of imine bond hydrolysis depended ...
DOI:
10.1016/j.carbpol.2022.119137

9. Chromium-catalyzed couplings of C(aryl)–SMe bonds for accessing arylated and alkylated benzaldehyde derivatives

Author:
Haohao Zeng; Shangru Yang; Chao Li; Fei Fan; Liang Ling; Meiming Luo; Xiaoming Zeng
Source:
Chemical communications 2022 v.58 no.50 pp. 7094-7097
ISSN:
1364-548X
Subject:
benzaldehyde; catalytic activity; cost effectiveness
Abstract:
... Described here is the chromium-catalyzed cleavage of C(aryl)–SMe bonds leading to coupling with organomagnesium to give functionalized benzaldehydes under mild conditions. This reaction was promoted specifically by a low-cost and simple CrCl₂ salt used as a precatalyst, enabling synchronous activations of ortho-C(aryl)–SMe and ortho′-C(aryl)–H bonds to achieve difunctionalization of benzaldimines. ...
DOI:
10.1039/d2cc01631a

10. Cold plasmas combined with Ar-based MAP for meatball products: Influence on microbiological shelflife and quality attributes

Author:
Ran Li; Heyuan Zhu; Yongfang Chen; Guanghong Zhou; Chunbao Li; Keping Ye
Source:
Lebensmittel-Wissenschaft + Technologie 2022 v.159 pp. 113137
ISSN:
0023-6438
Subject:
Acinetobacter; acetaldehyde; benzaldehyde; benzene; cold; lipid peroxidation; nonthermal processing; odors; shelf life; total volatile basic nitrogen
Abstract:
... This study was to evaluate the cold plasma treated times (0, 3, 6, and 9 min) combining with Ar-based MAP on the microbiological shelflife and quality attributes in meatballs. Results showed that Ar-6 min and Ar-9 min groups could significantly decrease the initial counts of microorganism by 1.02 and 1.19 log CFU/g in meatballs, respectively, besides the shelf-life was prolonged for 14 days. Compa ...
DOI:
10.1016/j.lwt.2022.113137

11. Comparative analysis of aroma compounds in French fries and palm oil at three crucial stages by GC/MS‐olfactometry, odor activity values, and aroma recombination

Author:
Lirong Xu; Jiarui Chang; Xue Mei; Youfeng Zhang; Gangcheng Wu; Qingzhe Jin; Xingguo Wang
Source:
Journal of the science of food and agriculture 2022 v.102 no.7 pp. 2792-2804
ISSN:
0022-5142
Subject:
agriculture; benzaldehyde; fried foods; hexanoic acid; octanoic acid; odors; off flavors; palm oils
Abstract:
... BACKGROUND: Flavor is a key element affecting the popularity of French fries (FFs). When oil is heated, the changes in oil quality can affect the flavor of the food directly. RESULTS: The flavor of FFs showed three crucial stages: the break‐in (3.0% to 6.8% of total polar compounds (TPC)), optimum (7.0% to 19% of TPC), and degrading (above 19.5% of TPC) stages. To distinguish the key aroma compoun ...
DOI:
10.1002/jsfa.11620

12. Contribution to the chemodiversity of ex Cystoseira sp. - Gongolaria barbata and Ericaria crinita from the Adriatic Sea: Volatiles, fatty acids and major pigments

Author:
Sanja Radman; Marina Zekić; Ivana Flanjak; Ana-Marija Cikoš; Stela Jokić; Igor Jerković
Source:
Algal research 2022 v.63 pp. 102653
ISSN:
2211-9264
Subject:
Cystoseira; air drying; algae; arachidonic acid; benzaldehyde; benzyl alcohol; chemotaxonomy; chlorophyll; headspace analysis; hydrodistillation; oleic acid; palmitic acid; research; sesquiterpenoids; solid phase microextraction; volatile organic compounds; Adriatic Sea
Abstract:
... The aim of present research was to contribute to G. barbata and E. crinita chemodiversity and to the knowledge of specially protected Cystoseira areas. Headspace solid-phase microextraction (HS-SPME) and hydrodistillation (HD) were applied to the fresh (FrGb) and air-dried G. barbata (DrGb) and to the fresh (FrEc) and air-dried E. crinita (DrEc). Sesquiterpenes dominated in the headspace (HS) of F ...
DOI:
10.1016/j.algal.2022.102653

13. Development of a biodegradable plastic film extruded with the addition of a Brazilian propolis by-product

Author:
Carlize Bertotto; Ana Paula Bilck; Fabio Yamashita; Ofélia Anjos; Md Abu Bakar Siddique; Sabine Martina Harrison; Nigel Patrick Brunton; Solange Teresinha Carpes
Source:
Lebensmittel-Wissenschaft + Technologie 2022 v.157 pp. 113124
ISSN:
0023-6438
Subject:
Salmonella Typhimurium; Staphylococcus aureus; antioxidants; benzaldehyde; biodegradability; cassava starch; food industry; gas chromatography; markets; modulus of elasticity; plastic film; plastics; propolis; terpenoids; volatile compounds
Abstract:
... The development of new materials environmentally friendly has become an important market niche for the food industry. The agro-industrial wastes and by-products can be an alternative for the production of biodegradable food packaging. The work aimed to produce biodegradable plastic film extruded with antioxidant and antibacterial properties by the joining of cassava starch and Brazilian propolis b ...
DOI:
10.1016/j.lwt.2022.113124

14. Effects of dimethyl dicarbonate on improving the aroma of melon spirits by inhibiting spoilage microorganisms

Author:
Jiang Zhang; Xiaobin Yu; Yuxia Sun; Xueqiang Guan; Weishuai Qin; Xiang Zhang; Yan Ding; Wenhua Yang; Jianli Zhou
Source:
Journal of food processing and preservation 2022 v.46 no.6 pp. e16499
ISSN:
0145-8892
Subject:
2-heptanone; benzaldehyde; fermentation; flavor; flowers; melons; methanol; odors; pomace; spoilage; thermosensitivity
Abstract:
... Melon is susceptible to spoilage microorganisms and contains heat‐sensitive flavor. Therefore, an ideal spoilage inhibitor should be used in the production of melon spirits. The effects of dimethyl decarbonate (DMDC) on the changes in microorganisms and volatiles were systematically investigated during the fermentation of melon juice. More than 70 volatiles were detected, and most were related to ...
DOI:
10.1111/jfpp.16499

15. Electrophysiological and behavioral responses of blister beetle Mylabris pustulata to plant volatiles

Author:
Suresh Nebapure; Sanitya Kumar
Source:
Animal biology 2022 v.72 no.2 pp. 103-116
ISSN:
1570-7555
Subject:
Cajanus cajan; Mylabris; acetates; acetophenones; adsorbents; benzaldehyde; cineole; electrophysiology; gas chromatography-mass spectrometry; headspace analysis; herbivores; host plants; nerol; pest management; pigeon peas; qualitative analysis
Abstract:
... Plant volatiles, constitutive or induced, are perceived by insect pests to locate the host plant and also by natural enemies to locate the host insect. These plant volatiles can be utilized to develop attractive or repellant lures for pest management. Studies were carried out to identify the plant volatiles which are induced in pigeonpea, Cajanus cajan (L.) Huth due to the herbivory of blister bee ...
DOI:
10.1163/15707563-bja10071

16. Electroreductive C[sbnd]O coupling of benzaldehyde over SACs Au–NiMn2O4 spinel synergetic composites

Author:
Meichun Qin; Shiying Fan; Xinyong Li; Moses O. Tade; Shaomin Liu
Source:
Journal of colloid and interface science 2022 v.625 pp. 305-316
ISSN:
0021-9797
Subject:
adsorption; benzaldehyde; biomass; density functional theory; energy; molecular weight
Abstract:
... Electroreductive CO coupling provides a prospective strategy for biomass derivative upgrading via reducing the number of oxygen-containing functional groups and increasing their molecular weight. However, exploring superior electrocatalysts with effective reactivity and high selectivity for target products are still a challenge. In this work, single atom Au surface derived NiMn₂O₄ (SACs Au−NiMn₂O₄ ...
DOI:
10.1016/j.jcis.2022.06.021

17. Experimental and computational investigation of a green Knoevenagel condensation catalyzed by zeolitic imidazolate framework-8

Author:
Vy Anh Tran; Le Thi Nhu Quynh; Thu-Thao Thi Vo; Phuc An Nguyen; Ta Ngoc Don; Yasser Vasseghian; Hung Phan; Sang-Wha Lee
Source:
Environmental research 2022 v.204 pp. 112364
ISSN:
0013-9351
Subject:
ambient temperature; benzaldehyde; catalysts; catalytic activity; condensation reactions; density functional theory; reaction mechanisms; research; solvents; surface area
Abstract:
... ZIF-8 is a highly porous, stable, and abundant surface area material that can be used as an environmentally friendly catalyst for Knoevenagel condensations. The effects of the ratio of the reactants (benzaldehyde (BA):ethyl cyanoacetate (ECA)), reaction temperature, and catalyst concentration were systematically investigated using a ZIF-8 catalyst and water as the solvent. ZIF-8 (3–5 wt%) showed e ...
DOI:
10.1016/j.envres.2021.112364

18. Formation of Breslow Intermediates under Aprotic Conditions: A Computational Study

Author:
Gou-Tao Huang; Ming-Hsiu Hsieh; Jen-Shiang K. Yu
Source:
Journal of organic chemistry 2022 v.87 no.5 pp. 2501-2507
ISSN:
1520-6904
Subject:
benzaldehyde; density functional theory; hydrogen bonding; organic chemistry; zwitterions
Abstract:
... The mechanism of formation of the Breslow intermediate (BI) under aprotic conditions is investigated with density functional theory (DFT) calculations. The zwitterionic adduct (ZA) is formed by the first addition of an imidazolinylidene to benzaldehyde. The forward reaction is found to proceed through the second addition of the ZA to another benzaldehyde, and subsequent proton migration gives a he ...
DOI:
10.1021/acs.joc.1c02408

19. Highly crystalline lead-free Cs3Sb2Br9 perovskite microcrystals enable efficient and selective photocatalytic oxidation of benzyl alcohol

Author:
Daofu Wu; Wei Sang; Benjun Huo; Jimei Wang; Xiaoyan Wang; Cheng Chen; Qiang Huang; Xiaosheng Tang
Source:
Journal of catalysis 2022 v.408 pp. 36-42
ISSN:
0021-9517
Subject:
air; benzaldehyde; benzyl alcohol; crystal structure; electron paramagnetic resonance spectroscopy; green chemistry; light; lighting; oxidation; oxygen; photocatalysis; photocatalysts; temperature
Abstract:
... Selective oxidation of alcohols to the corresponding aldehydes constitutes a great challenge in organic and green chemistry, which typically requires environmentally unfriendly oxidants/catalysts or relatively harsh conditions (high temperature & pressure). Herein, we report an eco-friendly perovskite-based photocatalyst, in which all-inorganic perovskite Cs₃Sb₂Br₉ microcrystals with high crystall ...
DOI:
10.1016/j.jcat.2022.02.023

20. Imidazolidine Hydride Donors in Palladium-Catalyzed Alkyne Hydroarylation

Author:
Soe L. Tun; S. V. Santhana Mariappan; F. Christopher Pigge
Source:
Journal of organic chemistry 2022 v.87 no.12 pp. 8059-8070
ISSN:
1520-6904
Subject:
alkenes; alkynes; benzaldehyde; carboxylic acids; hydrides; imidazoles; organic chemistry; oxidation; stereoselectivity; styrene
Abstract:
... Aldehyde-derived imidazolidines participate as hydride donors in intramolecular reductive Heck-type reactions. N,N′-Diphenylimidazolidines prepared from ortho-alkynyl benzaldehydes underwent regio- and stereoselective palladium-catalyzed hydroarylation followed by formal 1,5-hydride transfer and reductive elimination to afford substituted alkenes and imidazolium moieties, the latter conveniently c ...
DOI:
10.1021/acs.joc.2c00725

21. Impact of 4-alkyl branched-chain fatty acids on goaty-odor olfactory perception and their perceptual interactions in Yunnan goat milk cake

Author:
Huaixiang Tian; Yan Jing; Xuefeng Sun; Haiyan Yu; Juan Huang; Haibin Yuan; Xinman Lou; Bei Wang; Zhiyuan Xu; Chen Chen
Source:
Journal of food measurement & characterization 2022 v.16 no.2 pp. 1649-1658
ISSN:
2193-4126
Subject:
2-heptanone; benzaldehyde; cakes; esterification; flavor; gas chromatography-mass spectrometry; goat cheese; goat milk; measurement; models; odors; olfactory perception; synergism; China
Abstract:
... Yunnan goat milk cake is a popular traditional Chinese goat cheese with unique flavor. Among flavor compounds, branched chain fatty acids (BCFAs) are important contributors, however, their effect on the olfactory perception and perceptual interactions of Yunnan goat milk cake is still unclear. In order to investigate the effect of BCFAs on olfactory perception and their perceptual interactions of ...
DOI:
10.1007/s11694-022-01304-6

22. Interaction between secondary lipid oxidation products and hemoglobin with multi-spectroscopic techniques and docking studies

Author:
Xueqing Lei; Zhiwei Qin; Bo Ye; Feng Guo; Yao Wu; Ling Liu
Source:
Food chemistry 2022 v.394 pp. 133497
ISSN:
0308-8146
Subject:
benzaldehyde; chickens; fluorescence; food chemistry; hemoglobin; hydrophobic bonding; hydrophobicity; lipid peroxidation; oxidation; particle size; zeta potential
Abstract:
... This study aimed to explore the effect of secondary lipid oxidation products (SLOPs) on hemoglobin (Hb) in chicken model. The fluorescence quenching technique and molecular docking were employed, and the apparent binding constants Kₛᵥ and the binding site numbers of SLOPs with Hb were calculated. The results revealed that three SLOPs (hexanal, benzaldehyde, and 2-pentanone) obviously promoted the ...
DOI:
10.1016/j.foodchem.2022.133497

23. Investigating volatiles as the secondary metabolome of Piper methysticum from root powder and water extracts using comprehensive two-dimensional gas chromatography

Author:
Cynthia Cheung; Jonathan D. Baker; Julianne M. Byrne; Katelynn A. Perrault
Source:
Journal of ethnopharmacology 2022 v.294 pp. 115346
ISSN:
0378-8741
Subject:
Piper methysticum; aromatic compounds; benzaldehyde; beverages; camphene; camphor; comprehensive two-dimensional gas chromatography; flame ionization; headspace analysis; kava; limonene; mass spectrometry; metabolome; provenance; solid phase microextraction; traditional medicine; Pacific Ocean Islands
Abstract:
... Kava (Piper methysticum G. Forst) is a plant grown in the Pacific that is used in traditional medicines. The roots are macerated and powdered for consumption as a beverage in social settings as well as in ceremonies. Other types of preparations can also be used as traditional medicines. There has been an increase in demand for kava as there is continued traditional use and as it is becoming utiliz ...
DOI:
10.1016/j.jep.2022.115346

24. Investigation of volatile flavor compounds and characterization of aroma-active compounds of water-boiled salted duck using GC–MS–O, GC–IMS, and E-nose

Author:
Cong Li; Sam Al-Dalali; Zhouping Wang; Baocai Xu; Hui Zhou
Source:
Food chemistry 2022 v.386 pp. 132728
ISSN:
0308-8146
Subject:
benzaldehyde; ducks; electronic nose; ethyl acetate; flavor; food chemistry; limonene; octenol; odors; pentanols; potatoes; scorch
Abstract:
... To clarify the characteristic aroma substances of water-boiled salted duck (WSD), headspace-gas chromatography-mass spectrometry-olfactometry (HS–GC–MS–O), gas chromatography-ion mobility spectrometry (GC–IMS) combined with an electronic nose (E-nose) were used to analyze the volatile flavor profile of three types of WSD (containing four samples). Thirty-one and fifty volatile flavor components we ...
DOI:
10.1016/j.foodchem.2022.132728

25. Ir-Catalyzed Remote Functionalization by the Combination of Deconjugative Chain-Walking and C–H Activation Using a Transient Directing Group

Author:
King Hung Nigel Tang; Kanako Uchida; Kazuki Nishihara; Mamoru Ito; Takanori Shibata
Source:
Organic letters 2022 v.24 no.6 pp. 1313-1317
ISSN:
1523-7052
Subject:
alkenes; benzaldehyde; carbon-hydrogen bond activation; isomerization
Abstract:
... An Ir-catalyzed reaction of N-benzylideneanilines with functionalized alkenes such as α,β-unsaturated esters gave ortho-substituted benzaldehyde derivatives with a functional group at the remote position after acidic treatment. The present transformation involves deconjugative long-range isomerization (chain-walking) up to 11 times and C–H activation using an imino group as a transient directing g ...
DOI:
10.1021/acs.orglett.1c04321

26. Iron and molybdenum modified phosphotungstates towards selective oxidation of styrene to benzaldehyde

Author:
Yulin Zhang; Tianyu Mo; Hongxia Wang; Songnan Li; Bin Lu; Jingxiang Zhao; Qinghai Cai
Source:
Colloids and surfaces 2022 v.642 pp. 128736
ISSN:
0927-7757
Subject:
benzaldehyde; benzyl alcohol; catalysts; hydrogen peroxide; molybdenum; oxidants; oxidation; reaction mechanisms; styrene; synergism
Abstract:
... Iron and molybdenum modified phosphotungstates (FeMoPW) were synthesized by reaction of H₃PW₁₂O₄₀ (PW) with Fe(NO₃)₃.9 H₂O and (NH₄)₆Mo₇O₂₄.4 H₂O, followed by calcined, and characterized by XRD, FT-IR, UV–vis, SEM, TEM and XPS to determine the surface composition and structure. The as-prepared FeMoPW was utilized as a catalyst for solvent-free oxidation of styrene with hydrogen peroxide oxidant an ...
DOI:
10.1016/j.colsurfa.2022.128736

27. Isolation and selection of fructose-consuming lactic acid bacteria associated with coffee bean fermentation

Author:
Ana Caroline de Oliveira Junqueira; Gilberto Vinícius de Melo Pereira; Jéssica Aparecida Viesser; Dão Pedro de Carvalho Neto; Lana Bazan Peters Querne; Carlos Ricardo Soccol
Source:
Food biotechnology 2022 v.36 no.1 pp. 58-75
ISSN:
1532-4249
Subject:
Pediococcus pentosaceus; benzaldehyde; butanol; coffee beans; fermentation; food biotechnology; fructose; glucose; lactic acid; odors; oxygen; pyruvic acid
Abstract:
... The discrepancy between glucose over fructose metabolism during coffee fermentation can delay the drying process and stimulate the development of undesirable microorganisms. In this study, 26 lactic acid bacteria (LAB) isolated from laboratory-scale coffee fermentation were screened for their capacity to preferentially consume fructose over glucose and identified by 16S rDNA sequencing. Ten fructo ...
DOI:
10.1080/08905436.2021.2007119

28. Mass spectral analysis of secondary metabolites from Zingiber montanum rhizome extract using UHPLC‐HR‐ESI‐QTOF‐MS/MS

Author:
Pranatthapong Kabkrathok; Suwatchai Jarussophon; Onuma Unger; Pattamapan Lomarat; Vichai Reutrakul; Prapadsorn Pittayanurak; Bhanubong Bongcheewin; Natthinee Anantachoke
Source:
Phytochemical analysis 2022 v.33 no.1 pp. 57-71
ISSN:
0958-0344
Subject:
Oriental traditional medicine; Zingiber montanum; benzaldehyde; electrospray ionization mass spectrometry; ethylene oxide; ingredients; medicinal plants; molecular weight; phytochemicals; quality control; rhizomes; secondary metabolites; spectral analysis; tandem mass spectrometry; ultra-performance liquid chromatography; Thailand
Abstract:
... INTRODUCTION: Zingiber montanum (J.Koenig) Link ex A.Dietr. is a popular medicinal plant in Thailand. Its rhizomes have been used as an ingredient in various Thai traditional medicine formulas. While many reports have focused on the chemical constituents and biological activities of this plant, a comprehensive study on secondary metabolite profiling using tandem mass spectrometry has, to this poin ...
DOI:
10.1002/pca.3068

29. Metabolite-based cell sorting workflow for identifying microbes producing carbonyls in tobacco leaves

Author:
Tianfei Zheng; Qianying Zhang; Zheng Peng; Dongliang Li; Xinying Wu; Yi Liu; Pinhe Li; Juan Zhang; Guocheng Du
Source:
Applied microbiology and biotechnology 2022 v.106 no.11 pp. 4199-4209
ISSN:
0175-7598
Subject:
Acinetobacter; Lysinibacillus; Sphingomonas; benzaldehyde; biotechnology; fermentation; flavor; flow cytometry; fluorescent dyes; genes; hydrazides; metabolites; microbial culture; phenylacetaldehyde; tobacco
Abstract:
... Carbonyl compounds represented by aldehydes and ketones make an important contribution to the flavor of tobacco. Since most carbonyl compounds are produced by microbes during tobacco fermentation, identifying their producers is important to improve the quality of tobacco. Here, we created an efficient workflow that combines metabolite labeling with fluorescence-activated cell sorting (ML-FACS), 16 ...
DOI:
10.1007/s00253-022-11982-3

30. N-doped carbon-modified palladium catalysts with superior water resistant performance for the oxidative removal of toxic aromatics

Author:
Hualian Chen; Yuxi Liu; Ruyi Gao; Tiantian Dong; Zhiquan Hou; Lin Jing; Erhong Duan; Jiguang Deng; Hongxing Dai
Source:
Journal of hazardous materials 2022 v.437 pp. 129358
ISSN:
0304-3894
Subject:
adsorption; benzaldehyde; benzoic acid; boron nitride; carbon; catalysts; feedstocks; hydrophobicity; oxidation; oxygen; palladium; reactive oxygen species; temperature; toxicity; volatile organic compounds; water vapor; xylene
Abstract:
... The supported palladium catalysts perform well in the oxidative removal of hazardous aromatic hydrocarbons. However, water vapor can seriously deactivate the catalysts especially in the low-temperature regime. Hence, improving moisture resistance of the Pd-based catalysts is full of challenge in the removal of aromatics. Herein, we report a new type of Pd@NC/BN catalysts featured with nitrogen-dop ...
DOI:
10.1016/j.jhazmat.2022.129358

31. Oxidative cleavage of C–C double bond in cinnamic acids with hydrogen peroxide catalysed by vanadium(v) oxide

Author:
Monika Horvat; Jernej Iskra
Source:
Green chemistry 2022 v.24 no.5 pp. 2073-2081
ISSN:
1463-9270
Subject:
aqueous solutions; benzaldehyde; benzoic acid; benzoquinones; catalysts; cinnamic acid; epoxides; ferulic acid; glycols; green chemistry; hydrogen peroxide; oxidants; solvents; spectroscopy; styrene; sustainable technology; vanadium; vanillin
Abstract:
... We have developed a cheap, green, mild and environmentally friendly method for the selective cleavage of carbon–carbon double bonds with a 30% aqueous solution of hydrogen peroxide as the oxidant and vanadium(v) oxide as the catalyst. The selectivity of the oxidative cleavage of cinnamic acid derivatives 1 depends on the substituents and the solvent used (DME – MeOCH₂CH₂OMe, TFE – 2,2,2-trifluoroe ...
DOI:
10.1039/d1gc04416h

32. Photoinduced release of odorous volatile organic compounds from aqueous pollutants: The role of reactive oxygen species in increasing risk during cross-media transformation

Author:
Jingyi Lin; He Zhao; Hongbin Cao; Yuehong Zhao; Chuncheng Chen
Source:
Science of the total environment 2022 v.822 pp. 153397
ISSN:
0048-9697
Subject:
air; benzaldehyde; benzene; benzyl alcohol; electron paramagnetic resonance spectroscopy; environment; flame ionization; ingredients; liquid-air interface; nitrogen; odors; oxidation; photochemical reactions; photoirradiation; pollutants; pollution; risk; singlet oxygen; ultraviolet radiation; volatile organic compounds
Abstract:
... Photoinduced volatile organic compounds (VOCs) release from fatty alcohols at the air-water interface, has attracted considerable attention. This paper comprehensively explores the release of odorous VOCs from aqueous micropollutants under photoirradiation, especially in terms of the important role of the reactive oxygen species (ROS) in increased risk by cross-media transformation. The formation ...
DOI:
10.1016/j.scitotenv.2022.153397

33. Production of volatiles relation to bread aroma in flour-based fermentation with yeast

Author:
Ramazan Niçin; Nilgün Özdemir; Ömer Şimşek; Ahmet Hilmi Çon
Source:
Food chemistry 2022 v.378 pp. 132125
ISSN:
0308-8146
Subject:
acetates; alcohols; benzaldehyde; bread dough; breads; fermentation; food chemistry; odors; pH; temperature; whole wheat flour; yeasts
Abstract:
... The aim of this study is to produce a bread aroma mixture in flour-based fermentation that can potentially be added in bread dough forming after selection of yeast strains and optimization of the fermentation conditions. S. cerevisiae PFC121 produced bread aroma compounds in higher amounts compared to other 20 strains. Also, this strain provided a more balanced volatiles in bread samples that gain ...
DOI:
10.1016/j.foodchem.2022.132125

34. Promote the activation and ring opening of intermediates for stable photocatalytic toluene degradation over Zn-Ti-LDH

Author:
Yongyi Liu; Si Chen; Kanglu Li; Jielin Wang; Peng Chen; Hong Wang; Jieyuan Li; Fan Dong
Source:
Journal of colloid and interface science 2022 v.606 pp. 1435-1444
ISSN:
0021-9797
Subject:
adsorption; benzaldehyde; benzoic acid; hydrogen; oxygen; photocatalysis; photocatalysts; toluene; toxicity
Abstract:
... Improving the selectivity of photocatalysis and reducing the generation of toxic by-products are the two key challenges for the development of highly efficient and stable photocatalysts. In this work, it was revealed that Zn-Ti-layered double hydroxide (ZT-LDH) photocatalyst, which generated less intermediates, showed better toluene degradation efficiency (removal ratio, 75.2%) and stability, comp ...
DOI:
10.1016/j.jcis.2021.08.146

35. Regiospecific construction of m-alkenyl benzaldehyde from β-bromoenal and vinyl borate

Author:
Xiaolan Xin; Yilin Liu; Lu Zhou; You Li; Han Luo; Lei Liu; Ruopeng Bai; Yu Lan; Baosheng Li
Source:
Chemical communications 2022 v.58 no.32 pp. 4989-4992
ISSN:
1364-548X
Subject:
benzaldehyde; borates; regioselectivity
Abstract:
... Herein, we report a Pd-catalyzed regiospecific cycloaromatization of β-bromoenal and vinyl borate esters to synthesize m-alkenyl substituted benzaldehydes. This allows the construction of complex molecules from simple materials, which may be useful in the search for new optical materials. ...
DOI:
10.1039/d2cc01441f

36. Selective Oxidation of Alkylarenes to the Aromatic Ketones or Benzaldehydes with Water

Author:
Jin Zhang; Jihong Du; Chenyang Zhang; Kun Liu; Feifei Yu; Yongkun Yuan; Baogen Duan; Renhua Liu
Source:
Organic letters 2022 v.24 no.5 pp. 1152-1157
ISSN:
1523-7052
Subject:
benzaldehyde; byproducts; hydrogen; oxidation; oxygen
Abstract:
... Here a palladium-catalyzed oxidation method for converting alkylarenes into the aromatic ketones or benzaldehydes with water as the only oxygen donor is reported. This C–H bond oxidation functionalization does not require other oxidants and hydrogen acceptors, and H₂ is the only byproduct. The oxygen atom introduced into the products is confirmed to be from water by the MS analysis on the product ...
DOI:
10.1021/acs.orglett.1c04154

37. Self-Induced Oxygen Vacancies on Carboxyl-Rich MIL-121 Enable Efficient Activation and Oxidation of Benzyl Alcohol under Visible Light

Author:
Ming Li; Jianhao Qiu; Jie Xu; Yuxiang Zhu; Jianfeng Yao
Source:
ACS applied materials & interfaces 2022 v.14 no.9 pp. 11509-11516
ISSN:
1944-8252
Subject:
benzaldehyde; benzyl alcohol; light; oxidants; oxidation; oxygen; photocatalysis
Abstract:
... The oxygen vacancies could efficiently drive the photocatalytic oxidation of aromatic alcohol through the activation of reactants. However, the activation between aromatic alcohol and O₂ (oxidant) over oxygen vacancies is rarely studied. Herein, the ZnIn₂S₄/MIL-121 heterostructure with abundant surface uncoordinated carboxyl was rationally designed for benzyl alcohol (BA) oxidation under visible l ...
DOI:
10.1021/acsami.1c24934

38. Specific sub fractions from Terminalia mantaly (H. Perrier) extracts potently inhibit Plasmodium falciparum rings, merozoite egress and invasion

Author:
Cedric Derick Jiatsa Mbouna; Brice Mariscal Tchatat Tali; Patrick Valere Tsouh Fokou; Eugenie Aimee Madiesse Kemgne; Rodrigue Keumoe; Rufin Marie Toghueo Kouipou; Lauve Rachel Yamthe Tchokouaha; Marthe Aimée Tchuente Tchuenmogne; Donald Kagho Kenou; Dinkar Sahal; Fabrice Fekam Boyom
Source:
Journal of ethnopharmacology 2022 v.285 pp. 114909
ISSN:
0378-8741
Subject:
Plasmodium falciparum; Terminalia superba; antimalarials; antiplasmodial properties; benzaldehyde; blood; carvone; chemical constituents of plants; chloroform; ethyl acetate; flow cytometry; fluorescence; fractionation; gel chromatography; limonene; malaria; merozoites; microscopy; oleic acid; palmitic acid; parasites; traditional medicine; Cameroon
Abstract:
... Terminalia mantaly (H. Perrier) and Terminalia superba (Engl. & Diels) are sources of treatment for various diseases, including malaria and/or related symptoms in parts of Southwestern Cameroon. However, there is limited information on the extent of the antiplasmodial potential of their extracts.The present study was designed to investigate the antiplasmodial potential of chromatographic sub fract ...
DOI:
10.1016/j.jep.2021.114909

39. Sustainable and Selective Aerobic Oxidative C–C Bond Cleavage of Vicinal Diols under Near-Room-Temperature Condition

Author:
Lingwu Meng; Xinli Tong; Haijing Sun; Shaoyuan Guo
Source:
ACS sustainable chemistry & engineering 2022 v.10 no.22 pp. 7234-7241
ISSN:
2168-0485
Subject:
benzaldehyde; catalysts; catalytic activity; cleavage (chemistry); cobalt; glycols; green chemistry; oxygen
Abstract:
... The selective oxidative C–C bond cleavage is essential for the production of functional molecules. Herein, a sustainable and efficient heterogeneous catalytic protocol is developed to facilitate the aerobic oxidative C–C bond cleavage, in which the selective conversion of vicinal diols to the corresponding aldehydes was achieved under a near-room-temperature condition with NH₃-treated cobalt catal ...
DOI:
10.1021/acssuschemeng.1c07734

40. Synthesis of aluminum doped MIL-100(Fe) compounds for the one-pot photocatalytic conversion of cinnamaldehyde and benzyl alcohol to the corresponding alcohol and aldehyde under anaerobic conditions

Author:
Yueyue Kang; Zhiwen Wang; Yingzhang Shi; Binbin Guo; Ling Wu
Source:
Journal of catalysis 2022 v.406 pp. 184-192
ISSN:
0021-9517
Subject:
Lewis acids; aluminum; benzaldehyde; benzyl alcohol; hydrogenation; light; oxidation; photocatalysis; photocatalysts
Abstract:
... Fully utilizing the photogenerated electrons and holes in a photocatalytic process is a promising way to enhance catalytic efficiency and achieve atomic economy. Here, conjugated photocatalytic redox reactions, i.e. hydrogenation of cinnamaldehyde (CAL) to cinnamyl alcohol (COL) and concomitant oxidation of benzylalcohol (BA) to benzaldehyde under visible light, are achieved via creating bimetal M ...
DOI:
10.1016/j.jcat.2022.01.010

41. The association of aldehydes exposure with diabetes mellitus in US population: NHANES 2013–2014

Author:
Xueqiong Weng; Jingmin Chen; Qiaoyuan Fei; Xinrong Guo; Shan Liu; Lin Wen; Huanzhu Liang; Congcong Guo; Lihong Nie; Chunxia Jing
Source:
Chemosphere 2022 v.291 pp. 133019
ISSN:
0045-6535
Subject:
Bayesian theory; National Health and Nutrition Examination Survey; benzaldehyde; blood serum; diabetes mellitus; females; males; models; regression analysis; risk
Abstract:
... The association of mixed aldehydes exposure with diabetes remains unclear.We aimed to explore associations between serum aldehydes concentration and diabetes.We analyzed associations between aldehydes and diabetes using data from 1795 participants in the National Health and Nutrition Examination Survey (NHANES) from 2013 to 2014 by multiple logistic regression models. Bayesian kernel machine regre ...
DOI:
10.1016/j.chemosphere.2021.133019

42. Timing of inoculation of Oenococcus oeni and Lactobacillus plantarum in mixed malo-lactic culture along with compatible native yeast influences the polyphenolic, volatile and sensory profile of the Shiraz wines

Author:
Apramita Devi; K.A. Anu-Appaiah; Tsair-Fuh Lin
Source:
Lebensmittel-Wissenschaft + Technologie 2022 v.158 pp. 113130
ISSN:
0023-6438
Subject:
Lactobacillus plantarum; Oenococcus oeni; Saccharomyces cerevisiae; acidity; alcoholic fermentation; anthocyanins; benzaldehyde; color; lactic acid; malolactic fermentation; mouthfeel; odors; sensory evaluation; stuck fermentation; terpenoids; winemaking; wines; yeasts
Abstract:
... Malolactic fermentation (MLF) is a secondary wine fermentation resulting from lactic acid bacteria (Oenococcus oeni or Lactobacillus plantarum), especially in cool climates. MLF reduces acidity, improves body, mouthfeel, aroma complexity, and stabilizes the wine. Nevertheless, the traditional MLF using single culture is often associated with stuck fermentation, increased volatile acidity and color ...
DOI:
10.1016/j.lwt.2022.113130

43. Titanium isopropoxide-mediated cis-selective synthesis of 3,4-substituted butyrolactones from CO₂

Author:
Aleksi Sahari; Cuong Dat Do; Jere K. Mannisto; Emanuele Antico; Angelo Amaratunga; Kathrin H. Hopmann; Timo Repo
Source:
Chemical communications 2022 v.58 no.18 pp. 3027-3030
ISSN:
1364-548X
Subject:
Grignard reagents; benzaldehyde; carbon dioxide; diastereoselectivity; magnesium chloride; titanium
Abstract:
... We report a Ti(OiPr)₄-mediated multicomponent reaction, which produces 3,4-substituted cis-δ-lactones from alkyl magnesium chloride, benzaldehyde and CO₂. The key intermediate, titanacyclopropane, is formed in situ from Ti(OiPr)₄ and a Grignard reagent, which enables 1,2-dinucleophilic reactivity that is used to insert carbon dioxide and an aldehyde. An alternative reaction route is also described ...
DOI:
10.1039/d2cc00446a

44. UV-vis Spectroscopic Detection of Formaldehyde and its Analogs: A Convenient And Sensitive Methodology

Author:
Chenyao Yuan; Jiayan Pu; Donglei Fu; Yuru Min; Lei Wang; Jingquan Liu
Source:
Journal of hazardous materials 2022 pp. 129457
ISSN:
0304-3894
Subject:
acetaldehyde; acetone; benzaldehyde; byproducts; chemical species; formaldehyde; hydroxylamine; leukemia; liquids; manufacturing; pathogens; ultraviolet-visible spectroscopy
Abstract:
... Formaldehyde is deemed to be an indispensable industrial product that has been widely applied in manufacture of resins, drugs, building materials, etc. It has been widely accepted that, nevertheless, residual formaldehyde will cause pathogen reactions, even leading to cancers like leukemia. Thus, a facile and efficient approach has been designed to achieve the determination of formaldehyde by ultr ...
DOI:
10.1016/j.jhazmat.2022.129457

45. Ultrathin Two-Dimensional ZnIn₂S₄/Niₓ-B Heterostructure for High-Performance Photocatalytic Fine Chemical Synthesis and H₂ Generation

Author:
Xinwei Li; Suwei Lu; Jiayu Yi; Lijuan Shen; Zhihui Chen; Hun Xue; Qingrong Qian; Min-Quan Yang
Source:
ACS applied materials & interfaces 2022 v.14 no.22 pp. 25297-25307
ISSN:
1944-8252
Subject:
benzaldehyde; fuel production; nanosheets; nickel; photocatalysis; photocatalysts; semiconductors; solar energy; stoichiometry; sulfides; synthesis
Abstract:
... Photocatalytic H₂ evolution coupled with organic transformation provides a new avenue to cooperatively produce clean fuels and fine chemicals, enabling a more efficient conversion of solar energy. Here, a novel two-dimensional (2D) heterostructure of ultrathin ZnIn₂S₄ nanosheets decorated with amorphous nickel boride (Niₓ-B) is prepared for simultaneous photocatalytic anaerobic H₂ generation and a ...
DOI:
10.1021/acsami.2c02367

46. Using Data Science To Guide Aryl Bromide Substrate Scope Analysis in a Ni/Photoredox-Catalyzed Cross-Coupling with Acetals as Alcohol-Derived Radical Sources

Author:
Stavros K. Kariofillis; Shutian Jiang; Andrzej M. Żurański; Shivaani S. Gandhi; Jesus I. Martinez Alvarado; Abigail G. Doyle
Source:
Journal of the American Chemical Society 2022 v.144 no.2 pp. 1045-1055
ISSN:
1520-5126
Subject:
benzaldehyde; catalytic activity; cross-coupling reactions; derivatization; fenofibrate; methylation; redox reactions
Abstract:
... Ni/photoredox catalysis has emerged as a powerful platform for C(sp²)–C(sp³) bond formation. While many of these methods typically employ aryl bromides as the C(sp²) coupling partner, a variety of aliphatic radical sources have been investigated. In principle, these reactions enable access to the same product scaffolds, but it can be hard to discern which method to employ because nonstandardized s ...
DOI:
10.1021/jacs.1c12203

47. 19F magnetic resonance probes for detecting formaldehyde

Author:
Justin O. Massing; Leila Almounajed; Kyle A. Minder; Joseph D. Lange; Lina A. Eltahir; Jessica L. Kelts
Source:
Tetrahedron letters 2022 v.98 pp. 153796
ISSN:
0040-4039
Subject:
ammonia; benzaldehyde; formaldehyde; hydrolysis; magnetism
Abstract:
... Herein we report two separate ¹⁹F magnetic resonance (MR) probes responsive towards formaldehyde. Both agents were synthesized in a single step via aminoallylation of either 4-fluorobenzaldehyde (1FA) or 4-(trifluoromethyl)benzaldehyde (3FA) with ammonia and allylboronic acid pinacol ester. Condensation of the resulting homoallylic amines 1FA and 3FA with formaldehyde, followed by a 2-aza-Cope rea ...
DOI:
10.1016/j.tetlet.2022.153796

48. A Theoretical Study on the Borane-Catalyzed Reductive Amination of Aniline and Benzaldehyde with Dihydrogen: The Origins of Chemoselectivity

Author:
Jiyang Zhao; Shaoxian Liu; Shanshan Liu; Wenwen Ding; Sijia Liu; Yao Chen; Pan Du
Source:
Journal of organic chemistry 2022 v.87 no.2 pp. 1194-1207
ISSN:
1520-6904
Subject:
Lewis acids; amination; aniline; benzaldehyde; boranes; boron; catalysts; chemoselectivity; density functional theory; hydrogenation; imines; organic chemistry
Abstract:
... Density functional theory calculations are used in this study to investigate the product selectivity and mechanism of borane-catalyzed reductive aldehyde amination by a H₂ reducing agent. Knowing that different boranes yield different products, two typical boranes, (B(2,6-Cl₂C₆H₃)(p-HC₆F₄)₂ and B(C₆F₅)₃), are studied. Of the seven possible pathways of B(2,6-Cl₂C₆H₃)(p-HC₆F₄)₂-catalyzed aldehyde am ...
DOI:
10.1021/acs.joc.1c02491

49. A high-performance liquid chromatography–evaporative light scattering detection–based quantitative analytical method for polyvinyl alcohol in food supplements with pyrolysis–gas chromatography/mass spectrometry-based verification

Author:
Juhee Park; Jihee Lee; Young-Min Kim; Min ji Kang; Hee-Jae Suh; Jihyun Lee; Hee-Seok Lee; Chan Lee
Source:
Food science and biotechnology 2022 v.31 no.7 pp. 797-805
ISSN:
1226-7708
Subject:
acetaldehyde; benzaldehyde; biotechnology; dietary supplements; fabrics; food science; high performance liquid chromatography; polyvinyl alcohol; pyrolysis gas chromatography; quantitative analysis
Abstract:
... Polyvinyl alcohol (PVOH) is extensively used in agricultural, pharmaceutical, textile, and food industries. A new high-performance liquid chromatography (HPLC) method with evaporative light scattering detection (ELSD) was developed for the quantitative analysis of PVOH products. Pyrolysis–gas chromatography/mass spectrometry (Py–GC/MS) was employed for method verification. The HPLC–ELSD method exh ...
DOI:
10.1007/s10068-022-01102-2

50. A regioselective synthesis of 7-methyl juglone and its derivatives

Author:
Jiahua Cui; Shaoshun Li; Jinping Jia
Source:
Natural product research 2021 v.36 no.1 pp. 18-25
ISSN:
1478-6427
Subject:
aluminum; ammonia; ammonium; anthraquinones; antineoplastic activity; benzaldehyde; cerium; cyclization reactions; heat; juglone; liquids; oxidation; regioselectivity; research; succinic acid
Abstract:
... 7-Methyl juglone as a naturally occurring naphthoquinone showed striking antibacterial, antifungal, antivirus and anticancer activity. Its derivatives had also been characterized as key intermediates in the preparation of natural naphthoquinones and anthraquinones. Herein, we reported a regioselective synthesis of 7-methyl juglone via the construction of fused polycyclic systems. The key steps of ...
DOI:
10.1080/14786419.2020.1761356

51. A review on the degradation of acetaminophen by advanced oxidation process: pathway, by-products, biotoxicity, and density functional theory calculation

Author:
Mohammad Qutob; Mahmoud A. Hussein; Khalid A. Alamry; Mohd Rafatullah
Source:
RSC advances 2022 v.12 no.29 pp. 18373-18396
ISSN:
2046-2069
Subject:
acetaminophen; acetic acid; aminophenols; benzaldehyde; benzene; benzoic acid; benzoquinones; density functional theory; ecosystems; formic acid; hydroquinone; maleic acid; malonic acid; mutagens; oxalic acid; oxidation; p-nitrophenol; prediction; toxicity; water shortages
Abstract:
... Water scarcity and the accumulation of recalcitrance compounds into the environment are the main reasons behind the attraction of researchers to use advanced oxidation processes (AOPs). Many AOP systems have been used to treat acetaminophen (ACT) from an aqueous medium, which leads to generating different kinetics, mechanisms, and by-products. In this work, state-of-the-art studies on ACT by-produ ...
DOI:
10.1039/d2ra02469a

52. A trifecta of g-C₃N₄: enhanced visible-spectrum absorption, increased structural distortion and boosted electronic-transfer dynamics

Author:
Huanhuan Liu; Haifei Wang; Fu Zhang; Jierui Xue; Jihua Zhang; Genqiang Zhang
Source:
Chemical communications 2021 v.57 no.7 pp. 927-930
ISSN:
1364-548X
Subject:
absorption; benzaldehyde; benzyl alcohol; carbon nitride; graphene; hydrogen; hydrogen production; oxidation; photocatalysis; photocatalysts
Abstract:
... Porous spheres of graphitic carbon nitride (CN) with N-doped carbon species (CNNC) were synthesized under mild conditions by calcining a melamine–cyanic acid precursor containing a certain amount of PVP. Introduction of N-doped carbon led to enhancement of visible-spectrum utilization and greater distortion of the plane of g-C₃N₄. These actions greatly improved the separation efficiency of photoge ...
DOI:
10.1039/d0cc06294d

53. A truly bio-based benzoxazine derived from three natural reactants obtained under environmentally friendly conditions and its polymer properties [Erratum: November 2021, v.23(21), p.8707]

Author:
Irlaine Machado; Isabel Hsieh; Eric Rachita; Maria L. Salum; Daniela Iguchi; Nicholas Pogharian; Analisa Pellot; Pablo Froimowicz; Veronica Calado; Hatsuo Ishida
Source:
Green chemistry 2021 v.23 no.11 pp. 4051-4064
ISSN:
1463-9270
Subject:
Fourier transform infrared spectroscopy; Raman spectroscopy; benzaldehyde; green chemistry; heat; nuclear magnetic resonance spectroscopy; polymerization; polymers; temperature; thermal stability; thermogravimetry; weight loss
Abstract:
... The majority of the published bio-based benzoxazine research has focused almost exclusively on different phenolic and amine compounds, while the aldehyde portion of the oxazine ring remains the same. These materials have been labeled as fully bio-based even though only two of the three raw materials are derived from renewable resources. In this study, we synthesize a truly bio-based benzoxazine in ...
DOI:
10.1039/d1gc00951f

54. Activation of o-Propargyl Alcohol Benzaldehydes under Acetalization Conditions for Intramolecular Electrophile Intercepted Meyer–Schuster Rearrangement

Author:
Golla Ramesh; Bokka Venkat Ramulu; Rengarajan Balamurugan
Source:
Journal of organic chemistry 2022 v.87 no.13 pp. 8633-8647
ISSN:
1520-6904
Subject:
Lewis acids; alcohols; benzaldehyde; indans; organic chemistry
Abstract:
... The reactivity of o-propargyl alcohol benzaldehydes has been increased tremendously toward Brønsted acid-catalyzed intramolecular electrophile intercepted Meyer–Schuster (M–S) rearrangement under acetalization conditions using trimethyl orthoformate (TMOF). The in situ formed acetal transfers the methoxy group intramolecularly to generate the M–S intermediate in even less reactive substrates, and ...
DOI:
10.1021/acs.joc.2c00826

55. 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

56. An efficient click synthesis of chalcones derivatized with two 1-(2-quinolon-4-yl)-1,2,3-triazoles

Author:
Mohammed B. Alshammari; Ashraf A. Aly; Alan B. Brown; Md Afroz Bakht; Ahmed M. Shawky; Adel M. Abdelhakem; Essmat M. El-Sheref
Source:
Zeitschrift für Naturforschung 2021 v.76 no.6-7 pp. 395-403
ISSN:
1865-7117
Subject:
acetophenones; benzaldehyde; chalcones; condensation reactions
Abstract:
... Chalcones derivatized with 1-(2-quinolonyl)-1,2,3-triazoles were synthesized by reaction of 4-azido-2-quinolones with 1-phenyl-3-(4-propargyloxyphenyl)prop-2-en-1-one, or by aldol reaction of 4-{[1-(2-oxo-1,2-dihydroquinolin-4-yl)-1H-1,2,3-triazol-4-yl]methoxy}benzaldehydes with acetophenone. Whereas, chalcones bearing two 1-(2-quinolonyl)-1,2,3-triazoles were synthesized by reaction of 1,3-bis(4- ...
DOI:
10.1515/znb-2021-0028

57. Application of whey of Mozzarella di Bufala Campana fermented by lactic acid bacteria as a bread biopreservative agent

Author:
Carlos Luz; Juan M. Quiles; Raffaele Romano; Giuseppe Blaiotta; Lorena Rodríguez; Giuseppe Meca
Source:
International journal of food science & technology 2021 v.56 no.9 pp. 4585-4593
ISSN:
0950-5423
Subject:
antifungal properties; benzaldehyde; biopreservation; breads; calcium propionate; fermentation; food science; ingredients; lactic acid; pyrazines; shelf life; sourdough; tomatoes; volatile organic compounds; whey
Abstract:
... A total of nine isolated lactic acid bacteria (LAB) from tomato and sourdough with antifungal activity were employed to revaluate the whey of Mozzarella di Bufala through the fermentation process for 72 h at 37 °C. Then, the fermented whey (BWF) was characterised and used as biopreservative in bread formulation. L. plantarum TR7 and L. plantarum TR2 strains showed average lactic acid concentration ...
DOI:
10.1111/ijfs.15092

58. Aroma absorption in rapeseed oil using rotating packed bed

Author:
Ilya Lukin; Lukas Pietzka; Isabell Wingartz; Gerhard Schembecker
Source:
Flavour and fragrance journal 2021 v.36 no.1 pp. 137-147
ISSN:
0882-5734
Subject:
absorption; benzaldehyde; bioreactors; fermentation; flavor; liquids; mass transfer; odors; rapeseed oil
Abstract:
... An increasing consumers’ call for natural aromas fuels the development of biotechnological aroma production. Although aroma fermentation is quite advantageous, especially severe product losses of volatile compounds through the bioreactor off‐gas may challenge the downstream processing. The application of novel process intensification methods to overcome the common drawbacks of conventional apparat ...
DOI:
10.1002/ffj.3623

59. Assembly of Silicalite-1 Crystals Like Toy Lego Bricks into One-, Two-, and Three-Dimensional Architectures for Enhancing Its Adsorptive Separation and Catalytic Performances

Author:
Shiying Li; Hu Shi; Sen Wang; Zhikai Li; Pengfei Wang; Xingchen Liu; Yanhong Quan; Mei Dong; Jianguo Wang; Weibin Fan
Source:
ACS applied materials & interfaces 2021 v.13 no.48 pp. 58085-58095
ISSN:
1944-8252
Subject:
1-propanol; adsorption; benzaldehyde; butanol; catalytic activity; composite polymers; cyclohexanones; energy; ethanol; gels; nanocrystallites; nanosheets; spectroscopy; zeolites
Abstract:
... Many researchers have contributed to the assembly of zeolitic nanosheets and nanocrystallites into three-dimensional (3D) networks as it can remarkably improve the catalytic and/or adsorptive performances of zeolites. However, the applications of these synthesized materials are seriously limited because of low hydrothermal stability. A highly interesting strategy, but a great challenge, is the ali ...
DOI:
10.1021/acsami.1c15226

60. Bacillus nematocida B16 Enhanced the Rhizosphere Colonization of Pochonia chlamydosporia ZK7 and Controlled the Efficacy of the Root-Knot Nematode Meloidogyne incognita

Author:
Tingting Bo; Chuixu Kong; Shunxing Zou; Minghe Mo; Yajun Liu
Source:
Microorganisms 2022 v.10 no.2 pp. -
ISSN:
2076-2607
Subject:
Meloidogyne incognita; Pochonia chlamydosporia; benzaldehyde; biological control; field experimentation; fungi; furfural; gas chromatography; models; rhizosphere; root-knot nematodes; soil; tomatoes
Abstract:
... Pochonia chlamydosporia is widely applied in many countries as a biocontrol fungus against parasitic nematodes in plants. In a field experiment, the combined use of Bacillus nematocida B16 increased the biocontrol efficiency of P. chlamydosporia ZK7 against Meloidogyne incognita. Further study indicated that the colonization of P. chlamydosporia ZK7 in the rhizosphere soil and the roots of tomatoe ...
DOI:
10.3390/microorganisms10020218

61. 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

62. Bioactive compounds from the fruit extract of Clausena excavata Burm. f. (Rutaceae)

Author:
Virayu Suthiphasilp; Tharakorn Maneerat; Surat Laphookhieo; Jetnipat Songkerdthong; David J. Harding; Rawiwan Charoensup
Source:
South African journal of botany 2022 pp. -
ISSN:
0254-6299
Subject:
Clausena excavata; X-ray diffraction; alkaloids; antibacterial properties; benzaldehyde; colorectal neoplasms; coumarins; cytotoxicity; fruit extracts; glucose; humans; limonoids; lung neoplasms; metformin; methicillin-resistant Staphylococcus aureus; neoplasm cells; phenylpropanoids; phytochemicals; safrole
Abstract:
... Phytochemical investigation of the fruit extract of Clausena excavata Burm. f. resulted in the isolation and identification of 16 compounds, including seven coumarins (1–7), four phenylpropanoids (8–10 and 14), two benzaldehyde derivatives (11 and 12), one carbazole alkaloid (13), and two limonoids (15 and 16). Of these, nine compounds (1, 3, 5, 6, 8–10, 15, and 16) were isolated from C. excavata ...
DOI:
10.1016/j.sajb.2022.05.056

63. Bioprospecting of Less-Polar Constituents from Endemic Brown Macroalga Fucus virsoides J. Agardh from the Adriatic Sea and Targeted Antioxidant Effects In Vitro and In Vivo (Zebrafish Model)

Author:
Igor Jerković; Ana-Marija Cikoš; Sanja Babić; Lara Čižmek; Krunoslav Bojanić; Krunoslav Aladić; Nikolay V. Ul’yanovskii; Dmitry S. Kosyakov; Albert T. Lebedev; Rozelindra Čož-Rakovac; Polonca Trebše; Stela Jokić
Source:
Marine drugs 2021 v.19 no.5 pp. -
ISSN:
1660-3397
Subject:
Danio rerio; Fucus; air drying; alkenes; arachidonic acid; benzaldehyde; benzyl alcohol; carotenoids; cations; chlorophyll; diacylglycerols; electrospray ionization mass spectrometry; embryotoxicity; fish; flame ionization; freeze drying; headspace analysis; hydrodistillation; hydrogen peroxide; macroalgae; models; oleic acid; oxidation; oxidative stress; oxygen radical absorbance capacity; protective effect; solid phase microextraction; Adriatic Sea
Abstract:
... The endemic brown macroalga Fucus virsoides J. Agardh from the Adriatic Sea was in the focus of the present research. The volatiles of fresh (FrFv) and air-dried (DrFv) samples of F. virsoides obtained by headspace solid-phase microextraction (HS-SPME) and hydrodistillation (HD) were analyzed by gas chromatography equipped with flame ionization detector and mass spectrometry (GC-FID/MS). The major ...
DOI:
10.3390/md19050235

64. Changes in volatile compound profiles of cold-pressed berry seed oils induced by roasting

Author:
Sylwia Mildner-Szkudlarz; Maria Różańska; Anna Gaca; Henryk H. Jeleń
Source:
Lebensmittel-Wissenschaft + Technologie 2021 v.148 pp. 111718
ISSN:
0023-6438
Subject:
acetates; acetoin; benzaldehyde; benzyl alcohol; black currants; chemical composition; gas chromatography-mass spectrometry; lipid peroxidation; odors; raspberries; seed oils; strawberries; volatile compounds
Abstract:
... This study aimed to compare the volatile compounds of cold-pressed oils obtained from unroasted and roasted chokeberry, raspberry, blackcurrant, and strawberry seeds using comprehensive gas chromatography–mass spectrometry coupled to time of flight mass spectrometry (GC × GC-ToFMS). It is found that the seed type used and chemical composition affected the final aroma of berry oils. The volatile pr ...
DOI:
10.1016/j.lwt.2021.111718

65. Changes in volatile flavor of yak meat during oxidation based on multi-omics

Author:
Qun Huang; Kai Dong; Qia Wang; Xiang Huang; Guoze Wang; Fengping An; Zhang Luo; Peng Luo
Source:
Food chemistry 2022 v.371 pp. 131103
ISSN:
0308-8146
Subject:
acidification; amino acid metabolism; benzaldehyde; flavor; food chemistry; hydroxyl radicals; linoleic acid; meat; metabolites; metabolomics; multiomics; off odors; oleic acid; oxidation; prediction; starch; sucrose; tyrosine; yaks
Abstract:
... Hydroxyl radical system combined with GC-IMS and metabolomics were used to assess the effect of oxidation on the formation of volatile flavor emitted from yak meat. The formation of volatile compounds, including heptanal, octanal, nonanal, 2,3-glutaraldehyde, 3-hydroxy-2-butanone, etc. were promoted by oxidation. Among them, 2,3-pentanedione and 3-hydroxy-2-butanone, etc. maybe contributed most to ...
DOI:
10.1016/j.foodchem.2021.131103

66. Characteristic flavor of Antarctic krill (Euphausia superba) and white shrimp (Penaeus vannamei) induced by thermal treatment

Author:
Jing Bai; Yan Fan; Lulu Zhu; Yanchao Wang; Hu Hou
Source:
Food chemistry 2022 v.378 pp. 132074
ISSN:
0308-8146
Subject:
Euphausia superba; Litopenaeus vannamei; benzaldehyde; electronic nose; electronic tongue; flavor; food chemistry; limonene; sensory evaluation; shrimp; spectroscopy
Abstract:
... For the good acceptance and preference of heated shrimp, characteristic flavor composition analysis was necessary. The sensory evaluation, electronic tongue, electronic nose, and gas chromatography-ion mobility spectrometry were employed in this study. After steaming or cooking, the sensory scores of Antarctic krill (KM) and white shrimp (PM) were significantly increased, and five basic tastes wer ...
DOI:
10.1016/j.foodchem.2022.132074

67. Characteristic flavour compounds and formation of Chinese Rubing cheese: Comparative study between two different acidification technologies

Author:
Guangqiang Wei; Qiong Zhao; Yanan Shi; Aixiang Huang
Source:
International journal of dairy technology 2022 v.75 no.2 pp. 405-420
ISSN:
1364-727X
Subject:
acidification; benzaldehyde; biochemical pathways; cheeses; comparative study; dairy technology; fermentation; flavor; leucine; methionine; odors; phenylalanine; pyruvic acid
Abstract:
... In this study, the flavour characteristics of the Chinese Rubing cheese produced through the traditional direct acidification (TRB) and fermented acidification technologies (FRB) were characterised by flavoromics. A total of eight and sixteen components were identified as the Characteristic Flavour Compounds (CFCs) of TRB and FRB, respectively. The CFCs of FRB were enriched in the methyl ketone, p ...
DOI:
10.1111/1471-0307.12851

68. Characterization of Volatile Component Changes in Peas under Different Treatments by GC-IMS and GC-MS

Author:
Kangyi Zhang; Can Zhang; Haining Zhuang; Yue Liu; Tao Feng; Bin Nie
Source:
Journal of food quality 2021 v.2021 pp. -
ISSN:
1745-4557
Subject:
almonds; beans; benzaldehyde; cluster analysis; flavor; food quality; freeze drying; hay; heat; mushrooms; odors; potatoes; precooling; rapid methods; sensory evaluation
Abstract:
... Volatile profiles of peas under 9 kinds of different treatments including native, washing, blanching, precooling, freezing, steaming, boiling, frying, and freeze-drying were characterized by GC-IMS and GC-MS. The differences of volatile compounds in different peas were observed from the characteristic fingerprints by GC-IMS. The Venn diagram found that the common flavor substances codetected by GC ...
DOI:
10.1155/2021/6533083

69. Characterization of key off-odor compounds in thermal duck egg gels by GC-olfactometry-MS, odor activity values, and aroma recombination

Author:
Liuyang Ren; Jie Ma; Ying Lv; Qigen Tong; Huiyuan Guo
Source:
Lebensmittel-Wissenschaft + Technologie 2021 v.143 pp. 111182
ISSN:
0023-6438
Subject:
air; anaerobic treatment; benzaldehyde; duck eggs; egg yolk; eggs; models; mushrooms; nitrogen; octenol; off flavors; off odors; sensory evaluation; spectroscopy
Abstract:
... Characterization of volatile off-odor compounds in thermal duck egg gels was investigated by gas chromatography-olfactometry-mass spectrometry (GC-O-MS), odor activity values (OAVs) and aroma recombination. The results demonstrated that the off-odor of thermal duck egg mainly came from egg yolk (EY), and content of aldehydes was the highest in EY. Anaerobic treatment in nitrogen contributed to dec ...
DOI:
10.1016/j.lwt.2021.111182

70. Characterization of salted egg yolk flavoring prepared by enzyme hydrolysis and microwave irradiation

Author:
Yujie Su; Zheng Chen; Junhua Li; Cuihua Chang; Luping Gu; Yanjun Yang
Source:
Food chemistry 2021 v.338 pp. 127913
ISSN:
0308-8146
Subject:
benzaldehyde; degradation; egg albumen; egg yolk; enzymatic hydrolysis; flavor; food chemistry; industrialization; lead; lipid peroxidation; microwave radiation; temperature; texture; wastes; water; China
Abstract:
... The salted egg yolk (SEY) is very popular in China for its pleasant flavor and texture. However, the long production cycle of traditional pickling and the waste of salted egg white had limited its industrialization. To solve these problems, a salted egg yolk flavoring was generated through enzymatic hydrolysis and microwave irradiation from fresh egg yolk in this study. The combination of enzymati ...
DOI:
10.1016/j.foodchem.2020.127913

71. Characterizing the volatile compounds of different sorghum cultivars by both GC-MS and HS-GC-IMS

Author:
Xiaojing Fan; Xin Jiao; Jinguang Liu; Meng Jia; Chris Blanchard; Zhongkai Zhou
Source:
Food research international 2021 v.140 pp. 109975
ISSN:
0963-9969
Subject:
benzaldehyde; cooking; cultivars; detection; esters; food research; octenol; odor compounds; odors; palmitic acid; pentanols; sampling
Abstract:
... The current study applied both GC-MS and GC-IMS for characterizing the volatile compounds of six Australian sorghum cultivars. For raw sorghum, the result of GC-MS showed that the ester compounds were abundant in six raw samples. Among these esters, the content of hexadecanoic acid ethyl ester was highest in all of the raw samples. Compound 3-octanone only existed in Apollo, Bazley and Liberty, an ...
DOI:
10.1016/j.foodres.2020.109975

72. Chemical Composition, Antioxidant, and Antibacterial Activities of Essential Oil of Atriplex semibaccata R.Br. Aerial Parts: First Assessment against Multidrug-Resistant Bacteria

Author:
Hamza Zine; Manar Ibrahimi; Souad Loqman; Eleni G. Papazoglou; Soukaina Ouhaddou; Sara Elgadi; Yedir Ouhdouch; Rachid Hakkou; Mariam El Adnani; Ahmed Ouhammou
Source:
Agronomy 2021 v.11 no.2 pp. -
ISSN:
2073-4395
Subject:
2,2-diphenyl-1-picrylhydrazyl; Atriplex semibaccata; Escherichia coli; Klebsiella pneumoniae; Staphylococcus aureus; agronomy; antibacterial properties; antioxidant activity; antioxidants; benzaldehyde; benzyl alcohol; biomass; chemical composition; essential oils; gentamicin; halophytes; land restoration; minimum inhibitory concentration; multiple drug resistance; phenol; synergism
Abstract:
... Atriplex semibaccata R.Br. is a perennial halophyte that has received much attention for studies of revegetation of marginal lands in arid and semi-arid environments. It was, recently, demonstrated that there are no risks in terms of contamination of essential oil (EO) from growing plant on such land. Interest in exploring the antibacterial and antioxidant potential of A. semibaccata EO has conseq ...
DOI:
10.3390/agronomy11020362

73. Chemical constituents from the roots of Peucedanum praeruptorum Dunn and their chemotaxonomic significance

Author:
Fang-You Chen; Lin-Feng Tu; Ding-Ping Liu; Jie Ma; Yong-Ming Luo
Source:
Biochemical systematics and ecology 2021 v.99 pp. 104355
ISSN:
0305-1978
Subject:
Peucedanum praeruptorum; benzaldehyde; chemotaxonomy; ecology; glycosides; psoralens; spectral analysis
Abstract:
... Chemical investigation on the roots of Peucedanum praeruptorum Dunn afforded 15 compounds, including five linear furocoumarins (1–5), six angular pyranocoumarins (6–11), two simple coumarins (12 and 13), a benzaldehyde derivative (14), and a phenylpropanoid glycoside (15). The structures of these compounds were established via spectroscopic analysis and comparison of their NMR data with the litera ...
DOI:
10.1016/j.bse.2021.104355

74. Co- inoculant response of plant growth promoting non-rhizobial endophytic yeast Candida tropicalis VYW1 and Rhizobium sp. VRE1 for enhanced plant nutrition, nodulation, growth and soil nutrient status in Mungbean (Vigna mungo L.,)

Author:
Brundha Annadurai; Sugitha Thangappan; Z. John Kennedy; S. G. Patil; Sivakumar Uthandi
Source:
Symbiosis 2021 v.83 no.1 pp. 115-128
ISSN:
0334-5114
Subject:
Candida tropicalis; Rhizobium; Vigna mungo; benzaldehyde; biomass; endophytes; indoles; leucine; metabolites; mung beans; nodulation; organic carbon; plant growth; plant nutrition; root nodules; soil nutrients; soil pH; soil quality; stearic acid; symbiosis; tryptophan; yeasts
Abstract:
... Non-rhizobial endophytes (NRE) from root nodule niche are well known for their plant growth-promoting (PGP) traits, unique metabolites, and assisting rhizobial nodulation. A co- inoculant developed with NRE yeast strain Candida tropicalis VYW1 and Rhizobium sp. VRE1 obtained from mungbean nodules significantly influenced nodulation behavior, plant growth, and soil health by exhibiting increased no ...
DOI:
10.1007/s13199-020-00740-6

75. Comparative analysis of volatile profiles in four pine-mushrooms using HS-SPME/GC-MS and E-nose

Author:
Qiyong Guo; Nadya Mara Adelina; Jintao Hu; Ligang Zhang; Yuhong Zhao
Source:
Food control 2022 v.134 pp. 108711
ISSN:
0956-7135
Subject:
benzaldehyde; electronic nose; food safety; gas chromatography-mass spectrometry; odors; principal component analysis; solid phase microextraction; China
Abstract:
... Pine-mushrooms is rich in bioactive compounds, possess a unique aroma profile for culinary art. In China, pine-mushroom has been produced in Southwest and Northeast area. However, the discrepancy of volatile profiles in pine-mushrooms from two regions was unclear due to different extraction and detection method applied in research. This study attempted to compare the volatile profiles of four pine ...
DOI:
10.1016/j.foodcont.2021.108711

76. Comprehensive profiling of volatile components in Taiping Houkui green tea

Author:
Hanchen Zhou; Yaqin Liu; Jihong Yang; Hui Wang; Yong Ding; Pandeng Lei
Source:
Lebensmittel-Wissenschaft + Technologie 2022 v.163 pp. 113523
ISSN:
0023-6438
Subject:
benzaldehyde; cedrol; cluster analysis; dimethyl sulfide; geraniol; green tea; indoles; linalool; manufacturing; methyl jasmonate; octenol; odor compounds; odors; phenylethyl alcohol; principal component analysis; variance; China
Abstract:
... Taiping Houkui green tea is well-known in China for its noble aroma. Six tea strains from the Shidacha population (the predominant raw materials for Taiping Houkui green tea) and three other varieties were used to prepare green teas via the conventional techniques of Taiping Houkui green tea manufacture. Aroma evaluation confirmed that green teas produced from Shidacha strains possessed good aroma ...
DOI:
10.1016/j.lwt.2022.113523

77. Confinement of Au³⁺-rich clusters by using Silicalite-1 for selective solvent-free oxidation of toluene

Author:
He Huang; Wanyue Ye; Caicheng Song; Yingcen Liu; Xiaotong Zhang; Yu Shan; Yuzhen Ge; Shufen Zhang; Rongwen Lu
Source:
Journal of materials chemistry A 2021 v.9 no.26 pp. 14710-14721
ISSN:
2050-7496
Subject:
adsorption; benzaldehyde; benzoic acid; catalytic activity; desorption; evolution; nanogold; oxidation; oxygen; superoxide anion; toluene
Abstract:
... The selective oxidation of primary carbon–hydrogen bonds in the methyl group of toluene to corresponding oxygenates is of immense significance. This transformation, however, remains challenging and often requires either extensive optimization of the present chemical operating processes or, more importantly, the design and development of novel catalysts. In this paper, we achieve the confinement of ...
DOI:
10.1039/d1ta02347k

78. Constructing a triangular metallacycle with salen–Al and its application to a catalytic cyanosilylation reaction

Author:
Jun Xu; Yueyue Zhang; Jinjin Zhang; Yang Li; Bo Li; Huayu Qiu; Pengfei Zhang; Shouchun Yin
Source:
Chemical communications 2021 v.57 no.80 pp. 10399-10402
ISSN:
1364-548X
Subject:
benzaldehyde; cyanides; stoichiometry
Abstract:
... A triangular metallosalen-based metallacycle was constructed in quantitative yield by the self-assembly of a 180° bis(pyridyl)salen–Al complex and a 60° diplatinum(ii) acceptor in a 1 : 1 stoichiometric ratio. This metallacycle was then successfully used to cyanosilylate a wide range of benzaldehydes with trimethylsilyl cyanide. ...
DOI:
10.1039/d1cc04577f

79. Construction of Sensory/Mass Spectrometry Feedback Platform for Seeking Aroma Contributors during the Aroma Enhancement of Congou Black Tea

Author:
Sifan Mei; Yanyan Cao; Gang Zhang; Su Zhou; Yi Wang; Shuying Gong; Qiang Chu; Ping Chen
Source:
Plants 2022 v.11 no.6 pp. -
ISSN:
2223-7747
Subject:
benzaldehyde; black tea; furfuryl alcohol; gas chromatography-mass spectrometry; odors; pyrroles; sensory evaluation; China
Abstract:
... Baking is widely accepted for aroma enhancement of black tea, and studies have mainly focused on the aroma or chemical substances under a specified baking condition. Understanding of the feedback between aroma substances and characteristics is urgently needed. Therefore, a mutual feedback platform (SES/MS) combined sensory evaluation system (SES) with gas chromatography–mass spectrometry (GC-MS) w ...
DOI:
10.3390/plants11060823

80. Cryogenic activity and stability of benzaldehyde lyase enzyme in lipidic mesophases-nanoconfined water

Author:
Tao Zhou; Yang Yao; Qin Zhang; Raffaele Mezzenga
Source:
Chemical communications 2021 v.57 no.46 pp. 5650-5653
ISSN:
1364-548X
Subject:
benzaldehyde; cold; denaturation; enzymes; liquids
Abstract:
... Phytantriol-based lipidic mesophases (LMs) are introduced as a platform for cryoenzymology, which relies on the presence of liquid water in LMs at subzero temperatures. After incorporation into LMs, the model enzyme Benzaldehyde lyase (BAL) shows high cryogenic stability and activity. In contrast, BAL in bulk solution undergoes significant secondary structural transitions caused by low temperature ...
DOI:
10.1039/d1cc01315g

81. Cu/nucleotide coordination self-assembling to in situ regenerate NAD(P)+ and co-immobilize dehydrogenase with robust activity and stability

Author:
Ying Zhang; Yucui Jiang; Bin Wei; Mingming Su; Hao Liang
Source:
Biochemical engineering journal 2022 v.184 pp. 108467
ISSN:
1369-703X
Subject:
NAD (coenzyme); alcohol dehydrogenase; benzaldehyde; benzyl alcohol; catalysts; catalytic activity; industry; oxidation; phosphates
Abstract:
... Enzyme is an efficient green catalyst, but its vulnerability and difficulties of separation from products limited the application in industry. Furthermore, a large number of oxidase enzymes rely on dihydronicotinamide adenine dinucleotide (NADH) or dihydronicotinamide adenine dinucleotide phosphate (NADPH) cofactors. These cofactors are too expensive to be used in industrial processes. Thus, cofac ...
DOI:
10.1016/j.bej.2022.108467

82. Data Analytics Determines Co-occurrence of Odorants in Raw Water and Evaluates Drinking Water Treatment Removal Strategies

Author:
Chunmiao Wang; Daniel L. Gallagher; Andrea M. Dietrich; Ming Su; Qi Wang; Qingyuan Guo; Junzhi Zhang; Wei An; Jianwei Yu; Min Yang
Source:
Environmental science & technology 2021 v.55 no.24 pp. 16770-16782
ISSN:
1520-5851
Subject:
activated carbon; benzaldehyde; cyclohexanones; data analysis; data collection; geosmin; indoles; odor compounds; odor control; pyrazines; regression analysis; spectrometers; water quality; water utilities; China
Abstract:
... A complex dataset with 140 sampling events was generated using triple quadrupole gas chromatography-mass spectrometer to track the occurrence of 95 odorants in raw and finished water from 98 drinking water treatment plants in 31 cities across China. Data analysis identified more than 70 odorants with concentrations ranging from not detected to thousands of ng/L. In raw water, Pearson correlation a ...
DOI:
10.1021/acs.est.1c02129

83. Determination of nitrofuran metabolites in meat products by UHPLC-fluorescence with ultrasonic-assisted derivatization

Author:
Kangkang Wang; Meng Wang; Yuli Kou; Changyan Guo; Xin Ma; Bingren Tian; Ying Qi; Wei Wang; Jide Wang
Source:
Journal of food composition and analysis 2022 v.107 pp. 104375
ISSN:
0889-1575
Subject:
benzaldehyde; chickens; derivatization; fish; fluorescence; food composition; meat; metabolites; shrimp; ultrasonic treatment
Abstract:
... A rapid and sensitive analytical method has been proposed to monitor simultaneously four nitrofuran metabolites (NFMs) in meat products by ultra-high performance liquid chromatography–fluorescence detection (UHPLC-FLD). These NFMs were derivatized by 4-(N,N diphenylamino)benzaldehyde (DABA) by thermostatic ultrasonication within 20 min. The results confirmed that the four NFMs derivatives had exce ...
DOI:
10.1016/j.jfca.2021.104375

84. Development of volatile compounds fingerprints by headspace‐gas chromatography‐ion mobility spectrometry in concentrated tomato paste and distillate during evaporation processing

Author:
Dan Wang; Rongrong Lu; Yue Ma; Shuang Guo; Xiaoyan Zhao; Hao Liang
Source:
International journal of food science & technology 2021 v.56 no.6 pp. 2708-2719
ISSN:
0950-5423
Subject:
acetates; benzaldehyde; evaporation; food science; furans; phenylacetaldehyde; principal component analysis; pulp; spectroscopy; technology; tomato paste; tomatoes; topography
Abstract:
... Volatile profiles of fresh tomato pulp, concentrated pastes and distillates during evaporation were analysed by headspace‐gas chromatography‐ion mobility spectrometry (HS‐GC‐IMS), and volatile fingerprints were established. Topographic plots showed ninety signal peaks, forty‐two peaks (monomers and dimers) for twenty‐five compounds were identified, including four alcohols, ten aldehydes, eight ket ...
DOI:
10.1111/ijfs.14901

85. Direct Z-scheme-based novel cobalt nickel tungstate/graphitic carbon nitride composite: Enhanced photocatalytic degradation of organic pollutants and oxidation of benzyl alcohol

Author:
Umair Alam; Nishith Verma
Source:
Colloids and surfaces 2021 v.630 pp. 127606
ISSN:
0927-7757
Subject:
absorption; benzaldehyde; benzyl alcohol; bisphenol A; carbon nitride; cobalt; composite materials; graphene; light; mineralization; nickel; oxidation; photocatalysis; photocatalysts; rhodamines
Abstract:
... Designing a photocatalyst with strong redox ability and broad absorption of visible light is challenging in the field of photocatalysis. In this study, a series of novel Z-scheme-based CoₓNi₁₋ₓWO₄/g-C₃N₄ (x = 0, 0.2, 0.5, 0.8 and 1) photocatalysts are synthesized with a view to increasing their redox abilities and improve their photocatalytic activities under broad absorption of visible light. The ...
DOI:
10.1016/j.colsurfa.2021.127606

86. Dynamic Kinetic Resolution in Gold-Catalyzed (4 + 2)-Annulations between Alkynyl Benzaldehydes and Allenamides to Yield Enantioenriched All-Carbon Diarylalkylmethane Derivatives

Author:
Yashwant Bhaskar Pandit; Rai-Shung Liu
Source:
Organic letters 2021 v.24 no.2 pp. 548-553
ISSN:
1523-7052
Subject:
benzaldehyde; deuterium; gold
Abstract:
... This work reports the synthesis of diarylmethane derivatives via gold-catalyzed (4 + 2)-annulations between alkynyl benzaldehydes and allenamides, followed by an aza-Claisen rearrangement. Deuterium labeling and crossover experiments have been performed to confirm this proposed mechanism. With racemic 3-substituted allenamides in a substrate ratio (1:1), we employ chiral gold catalysts to achieve ...
DOI:
10.1021/acs.orglett.1c03963

87. Effect of Prunus serotina Ehrh. Volatile Compounds on Germination and Seedling Growth of Pinus sylvestris L.

Author:
Aleksandra Halarewicz; Antoni Szumny; Paulina Bączek
Source:
Forests 2021 v.12 no.7 pp. -
ISSN:
1999-4907
Subject:
Pinus sylvestris; Prunus serotina; benzaldehyde; gas chromatography-mass spectrometry; germination; invasive species; leaves; linalool; phytotoxicity; root growth; seasonal variation; seedling growth; seedlings; stem elongation; volatile organic compounds
Abstract:
... In temperate European forests invaded by Prunus serotina Ehrh. (black cherry), a reduction in the spontaneous regeneration capacity of Pinus sylvestris L. (Scots pine) is observed. It could be caused by various factors, including allelopathic properties of this invasive plant. In this study the phytotoxic effect of P. serotina volatile compounds on P. sylvestris and the seasonal variation in this ...
DOI:
10.3390/f12070846

88. Effect of germinated brown rice flour on volatile compounds and sensory evaluation of germinated brown rice steamed bread

Author:
Ying Sun; Rongxin Miao; Lina Guan
Source:
Journal of food processing and preservation 2021 v.45 no.1 pp. e14994
ISSN:
0145-8892
Subject:
benzaldehyde; breads; brown rice; ethanol; flavor; hardness; odors; product development; rice flour; sensory evaluation; styrene; taste; volatile compounds; wheat flour; China
Abstract:
... The purpose of this paper is to investigate the effect of partial substitution of wheat flour with germinated brown rice flour (GBRF) (0%, 30%, 40%, 50%, 60%, and 70%) on the volatiles, sensory properties, and characteristics analysis of steamed bread. A total of 14 volatiles were detected in all samples. The obtained results showed differences in the volatile composition of the different substitu ...
DOI:
10.1111/jfpp.14994

89. Effect of storage temperature on volatile marker compounds in cured loins fermented with Staphylococcus carnosus by brine injection

Author:
Ramona Bosse; Melanie Wirth; Jochen Weiss; Monika Gibis
Source:
European food research & technology 2021 v.247 no.1 pp. 233-244
ISSN:
1438-2377
Subject:
Staphylococcus carnosus; acetophenones; bacterial growth; benzaldehyde; flavor; food research; meat; octenol; odors; proteolysis; regression analysis; storage temperature
Abstract:
... In this study, the influence of low (5 °C), intermediate (15 °C) and high (25 °C) storage temperatures on the profile of volatile compounds of North European cured loins fermented with Staphylococcus carnosus strains was investigated. In this context, proteolytic activity, bacterial growth, key volatile compounds and sensory attributes were studied. In conclusion, storage temperature significantly ...
DOI:
10.1007/s00217-020-03621-w

90. Effects of 1‐MCP treatment on volatile compounds and quality in Xiaobai apricot during storage at low temperature

Author:
Yunhao Lv; Guogang Chen; Hui Ouyang; Yueying Sang; Ying Jiang; Shaobo Cheng
Source:
Journal of food processing and preservation 2021 v.45 no.9 pp. e15452
ISSN:
0145-8892
Subject:
1-methylcyclopropene; acetates; apricots; ascorbic acid; benzaldehyde; cold storage; ethylene production; firmness; formates; fruits; linalool; odors; storage quality; titratable acidity
Abstract:
... The objective of this study was to investigate the effects of 1‐methylcyclopropene (1‐MCP) treatment on the storage quality and volatile compounds of Xiaobai apricot fruit stored at 4°C. Three groups of apricot fruit were set in a 1 m³ container and treated with 0.5, 1, 1.5 μl/L of 1‐MCP for 20 hr at 20°C, respectively. The physiological parameters and volatile compounds of 1‐MCP‐treated and untre ...
DOI:
10.1111/jfpp.15452

91. Efficient vanillin biosynthesis by recombinant lignin-degrading bacterium Arthrobacter sp. C2 and its environmental profile via life cycle assessment

Author:
Xinyue Zhao; Yuting Zhang; Hanyi Jiang; Hailian Zang; Yue Wang; Shanshan Sun; Chunyan Li
Source:
Bioresource technology 2022 v.347 pp. 126434
ISSN:
0960-8524
Subject:
Arthrobacter; alcohol oxidase; bacteria; benzaldehyde; biosynthesis; cold shock proteins; cold stress; electric energy consumption; environmental impact; genes; industry; life cycle assessment; lignin; sustainable development; technology; vanillin
Abstract:
... Vanillin is a natural flavoring agent that is widely used in the bioengineering industry. To enable sustainable development, joint consideration of bacterial performance and negative environmental impacts are critical to vanillin biosynthesis. In this study, a cold shock protein (csp) gene was upregulated for maintaining stable growth in Arthrobacter sp. C2 responding to vanillin and cold stress. ...
DOI:
10.1016/j.biortech.2021.126434

92. Emergence of Highly Enantioselective Catalytic Activity in a Helical Polymer Mediated by Deracemization of Racemic Pendants

Author:
Tomoyuki Ikai; Mitsuka Ando; Masaki Ito; Ryoma Ishidate; Nozomu Suzuki; Katsuhiro Maeda; Eiji Yashima
Source:
Journal of the American Chemical Society 2021 v.143 no.32 pp. 12725-12735
ISSN:
1520-5126
Subject:
alcohols; allylation; benzaldehyde; catalytic activity; enantiomers; enantioselectivity; optical isomerism; organocatalysts; polymerization; polymers
Abstract:
... Any polymers composed of racemic repeating units are obviously optically inactive and hence chiral functions, such as asymmetric catalysis, will not be expected at all. Contrary to such a preconceived notion, we report an unprecedented helical polymer-based highly enantioselective organocatalyst prepared by polymerization of a racemic monomer with no catalytic activity. Both the right- and left-ha ...
DOI:
10.1021/jacs.1c05620

93. Endorsing Organic Porous Polymers in Regioselective and Unusual Oxidative C═C Bond Cleavage of Styrenes into Aldehydes and Anaerobic Benzyl Alcohol Oxidation via Hydride Elimination

Author:
Debabrat Pathak; Rajiv Khatioda; Himanshu Sharma; Ankur K. Guha; Lakshi Saikia; Bipul Sarma
Source:
ACS applied materials & interfaces 2021 v.13 no.13 pp. 15353-15365
ISSN:
1944-8252
Subject:
benzaldehyde; benzyl alcohol; catalytic activity; cleavage (chemistry); hydrides; organocatalysts; oxidation; polymers; porous media; regioselectivity; styrene
Abstract:
... Oxidative cleavage of styrene C═C double bond is accomplished by employing a nitrogen-rich triazine-based microporous organic polymer as an organocatalyst. We report this regioselective reaction as first of its kind with no metal add-ons to afford benzaldehydes up to 92% selectivity via an unusual Wacker-type C═C bond cleavage. Such a reaction pathway is generally observed in the presence of a met ...
DOI:
10.1021/acsami.1c03158

94. Enhanced Photocatalytic Activity for Selective Oxidation of Toluene over Cubic–Hexagonal CdS Phase Junctions

Author:
Zhao-Ming Chai; Bing-Hao Wang; Yu-Xuan Tan; Zhang-Jun Bai; Jin-Bo Pan; Lang Chen; Sheng Shen; Jun-Kang Guo; Ting-Liang Xie; Chak-Tong Au; Shuang-Feng Yin
Source:
Industrial & engineering chemistry process design and development 2021 v.60 no.30 pp. 11106-11116
ISSN:
1520-5045
Subject:
benzaldehyde; hot water treatment; oxidation; oxygen; particle size; photocatalysis; process design; temperature; toluene
Abstract:
... Phase junction construction has been regarded as a valid and facile way to enhance semiconductors’ photocatalytic activity through improving the separation and migration efficiency of charge carriers. Herein, a CdS phase junction with tight crystal face contact was prepared by a one-step hydrothermal method. The particle size and the ratio of the cubic to hexagonal phase could be easily regulated ...
DOI:
10.1021/acs.iecr.1c01505

95. Environmental sampling of volatile organic compounds during the 2018 Camp Fire in Northern California

Author:
Leslie A. Simms; Eva Borras; Bradley S. Chew; Bruno Matsui; Mitchell M. McCartney; Stephen K. Robinson; Nicholas Kenyon; Cristina E. Davis
Source:
Journal of environmental sciences (China) 2021 v.103 pp. 135-147
ISSN:
1001-0742
Subject:
air; benzaldehyde; benzene; chemical analysis; ethylbenzene; gas chromatography-mass spectrometry; health effects assessments; naphthalene; toluene; volatile organic compounds; wildfires; xylene; California; China
Abstract:
... Trace analysis of volatile organic compounds (VOCs) during wildfires is imperative for environmental and health risk assessment. The use of gas sampling devices mounted on unmanned aerial vehicles (UAVs) to chemically sample air during wildfires is of great interest because these devices move freely about their environment, allowing for more representative air samples and the ability to sample are ...
DOI:
10.1016/j.jes.2020.10.003

96. Evaluation of volatile metabolites as potential markers to predict naturally-aged seed vigour by coupling rapid analytical profiling techniques with chemometrics

Author:
Tingting Zhang; Charfedinne Ayed; Ian D. Fisk; Tong Pan; Jianhua Wang; Ni Yang; Qun Sun
Source:
Food chemistry 2022 v.367 pp. 130760
ISSN:
0308-8146
Subject:
benzaldehyde; butanol; chemometrics; food chemistry; metabolites; models; spectroscopy; sweetcorn; vigor; volatile organic compounds
Abstract:
... Rapid volatile detection methods for seed vigour rely heavily on artificial ageing (AA), however the comparability of volatile organic compounds (VOCs) to natural ageing (NA) and practicability of the detection models were not well known. In this study, VOCs between AA and NA sweet corn seeds were compared and Partial Least Squares Regression (PLS-R) modelswere constructed based on AA to predict t ...
DOI:
10.1016/j.foodchem.2021.130760

97. Exogenous implication of seismic stress in attenuation of in vitro induced morpho-anatomical aberrations in Hemidesmus indicus (L.) R. Br. ex Schult

Author:
Mahipal S. Shekhawat; Manokari M; Kannan N; Priyadharshini S
Source:
South African journal of botany 2021 v.140 pp. 385-392
ISSN:
0254-6299
Subject:
Hemidesmus indicus; acclimation; appendages; benzaldehyde; chemical elements; geophysics; leaf area; length; light; mesophyll; microscopy; phenotype; photosynthesis; pigments; plantlets; roots; shoots; stomata; survival rate; tissue culture; weight; width
Abstract:
... Hemidesmus indicus (L.) R. Br. ex Schult. (Indian Sarsaparilla of the family Apocynaceae) is a perennial climber used in traditional and modern medicinal systems since ages due to presence of a phytoconstituent MBAlD (2-hydroxy 4-methoxy benzaldehyde) in its roots. The morphological and light microscopic examination of the foliar appendages of the in vitro regenerated plants revealed the presence ...
DOI:
10.1016/j.sajb.2020.09.011

98. Exploratory analysis of the presence of 14 carbonyl compounds in bottled mineral water in polyethylene terephthalate (PET) containers

Author:
Ingrid Marcela Melo Cardozo; Jeancarlo Pereira dos Anjos; Franciele Oliveira Campos da Rocha; Jailson B. de Andrade
Source:
Food chemistry 2021 v.365 pp. 130475
ISSN:
0308-8146
Subject:
acetaldehyde; acetone; acrolein; benzaldehyde; chemometrics; food chemistry; formaldehyde; gasification; mass spectrometry; mineral water; polyethylene terephthalates; principal component analysis; ultrafast liquid chromatography
Abstract:
... Carbonyl compounds (CCs) can migrate from bottles to mineral water because of plastic degradation. An exploratory analysis of the presence a significant number of CCs (14) in bottled mineral water with and without gas in polyethylene terephthalate (PET) containers was performed using ultra-fast liquid chromatography coupled to mass spectrometry (UFLC-MS). The data from the analysis was submitted t ...
DOI:
10.1016/j.foodchem.2021.130475

99. Formaldehyde, acrolein and other carbonyls in dwellings of university students. Levels and source characterization

Author:
Florentina Villanueva; Sonia Lara; Alberto Notario; Mariano Amo-Salas; Beatriz Cabañas
Source:
Chemosphere 2022 v.288 pp. 132429
ISSN:
0045-6535
Subject:
acetaldehyde; acetone; acrolein; air; benzaldehyde; college students; formaldehyde; principal component analysis; regression analysis; risk; urban areas; variance; winter; wood; Spain
Abstract:
... Fifteen carbonyl compounds were investigated in the living rooms and bedrooms of 25 university student flats in the urban area of Ciudad Real (Central Southern Spain) in wintertime. Carbonyls were sampled using Radiello ® passive samplers refilled in the laboratory according to the method described in ISO 16000-3 Standard. The most abundant carbonyls in the living rooms and bedrooms were formaldeh ...
DOI:
10.1016/j.chemosphere.2021.132429

100. Formaldehyde-Free Synthesis of Fully Bio-Based Multifunctional Bisbenzoxazine Resins from Natural Renewable Starting Materials

Author:
Mohamed Gamal Mohamed; Chia-Jung Li; Mo Aqib Raza Khan; Chih-Chuang Liaw; Kan Zhang; Shiao-Wei Kuo
Source:
Macromolecules 2022 v.55 no.8 pp. 3106-3115
ISSN:
1520-5835
Subject:
Escherichia coli; Fourier transform infrared spectroscopy; Staphylococcus aureus; antibiotics; apigenin; benzaldehyde; chemical structure; contact angle; glass transition temperature; mass spectrometry; nuclear magnetic resonance spectroscopy; polymerization; solvents; thermal degradation; thermogravimetry
Abstract:
... Although bio-based benzoxazines (BZs) have been explored widely as sustainable thermosetting resins, few high-performance BZs have been prepared completely from natural renewable resources. In this study we synthesized a fully bio-based multifunctional bisbenzoxazine (AP-fa-BZ) in high yield and purity from apigenin (AP), furfurylamine (fa), and benzaldehyde by using both solvent and solventless a ...
DOI:
10.1021/acs.macromol.2c00417