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1. Accelerating the Low-Temperature Catalytic Oxidation of Acetone over Al-Substituted Mn–Al Oxides by Rate-Limiting Step Modulation

Author:
Jian-Rong Li; Wan-Peng Zhang; Junyi Zhao; Mingjiao Tian; Kun Wu; Hang Xiao; Chi He
Source:
ACS applied materials & interfaces 2022 v.14 no.32 pp. 36536-36550
ISSN:
1944-8252
Subject:
acetic acid; acetone; carbon dioxide; catalysts; catalytic activity; dissociation; ethanol; mineralization; oxidation; reaction kinetics
Abstract:
... In order to enhance the catalytic activity and improve the stability of Mn–Al oxides in acetone oxidation, it is interesting to have found that modulating and accelerating the rate-limiting step by Al substitution rather than just mixing of Mn and Al is crucial for hydrocarbon efficient catalytic destruction. Here, a series of Mn–Al oxides with different Al substitution ratios were prepared by a s ...
DOI:
10.1021/acsami.2c06186

2. Bioactive compounds extraction from different lemongrass species: Strategies and deep eutectic solvents evaluation

Author:
Carlos E. B. Toazza; Fernando C. Leal; Caroline Marques; Grazielle Oliveira; Fabiane O. Farias; André L. D. Belan; Natalicio F. Leite; Marcos R. Mafra; Luciana Igarashi‐Mafra; Maria Lucia Masson
Source:
Journal of food process engineering 2022 v.45 no.5 pp. e14033
ISSN:
0145-8876
Subject:
Cymbopogon citratus; Cymbopogon flexuosus; Elionurus; acetic acid; acetone; antioxidant activity; antioxidants; citral; cosmetics; employment; ethanol; food chain; human health; magnetism; methanol; solvents; temperature; ultrasonics; wastewater
Abstract:
... Lemongrasses are known and used worldwide due to several benefits conferred to them regarding the high content of essential oils and other phenolic compounds, which are essential and nonessential compounds that occur in nature, are part of the food chain and present several benefits on human health. The obtaining of phenolic compounds from natural matrices requires the development of effective pro ...
DOI:
10.1111/jfpe.14033

3. Catalytic pyrolysis of cotton stalk to produce aromatic hydrocarbons over Fe modified CaO catalysts and ZSM-5

Author:
Xu Chen; Zihao Liu; Wei Chen; Haiping Yang; Hanping Chen
Source:
Journal of analytical and applied pyrolysis 2022 v.166 pp. 105635
ISSN:
0165-2370
Subject:
acetic acid; acetone; biomass; calcium oxide; cotton; furfural; lignin; pyrolysis; reaction mechanisms; surface area
Abstract:
... In this study, a novel method for the enhanced production of aromatic hydrocarbons by biomass pyrolysis with Fe modified CaO and ZSM-5 was proposed. The feasibility of aforementioned method and related reaction mechanism for the formation of aromatic hydrocarbons were investigated in Py-GC/MS. The results showed that Fe modification of CaO increased its specific surface area and generated Ca₂Fe₂O₅ ...
DOI:
10.1016/j.jaap.2022.105635

4. Construction and metabolic analysis of acetone-butanol-ethanol fermentation using mixed acetic acid and lactic acid in wastewater

Author:
Tao Zhao; Yukihiro Tashiro; Kenji Sonomoto
Source:
Industrial crops and products 2022 v.187 pp. 115503
ISSN:
0926-6690
Subject:
acetic acid; acetone; batch fermentation; butanol; carbon; glucose; lactic acid; lactic fermentation; pH; solvents; wastewater
Abstract:
... To reuse organic acids in wastewater, efficient acetone-butanol-ethanol (ABE) fermentation was constructed using mixed acetic acid and lactic acid. The mixed acids were co-consumed with glucose, producing higher butanol concentration (6.96 g/L) and butanol yield (0.494 C-mol/C-mol) than using each single acid (6.22 g/L and 0.432 C-mol/C-mol). This result was verified by ¹³C tracer experiment that ...
DOI:
10.1016/j.indcrop.2022.115503

5. DLLμE/GC-MS as a Powerful Analytical Approach to Establish the Volatilomic Composition of Different Whiskeys

Author:
Rosa Perestrelo; Michael Caldeira; Freddy Rodrigues; Jorge A. M. Pereira; José S. Câmara
Source:
Beverages 2022 v.8 no.3 pp. -
ISSN:
2306-5710
Subject:
1-propanol; acetic acid; acetone; biosynthesis; decanoic acid; flame ionization; gas chromatography-mass spectrometry; hexanoic acid; liquid-phase microextraction; methylene chloride; multivariate analysis; octanoic acid; solvents
Abstract:
... The volatilomic fingerprint of nine different whiskeys was established using a rapid and sensitive analytical approach based on dispersive liquid–liquid microextraction (DLLμE) followed by gas chromatography mass spectrometry detection (GC-MS) and gas chromatography with flame ionization detection (GC-FID). The influence of the extractor solvent on the extraction efficiency of volatile compounds ( ...
DOI:
10.3390/beverages8030053

6. Gas-Phase Reactivity of Phenylcarbyne Anions

Author:
Erlu Feng; Zaikuan J. Yu; Hanning Jiang; Xin Ma; John J. Nash; Hilkka I. Kenttämaa
Source:
Journal of the American Chemical Society 2022 v.144 no.19 pp. 8576-8590
ISSN:
1520-5126
Subject:
Lewis acids; acetic acid; acetone; acetonitrile; carbenes; dimethyl disulfide; spectrometers
Abstract:
... Gas-phase reactivities of the phenylcarbyne anion and its four derivatives were studied using a linear quadrupole ion trap mass spectrometer. The phenylcarbyne anions were calculated to have a triplet ground state (singlet–triplet splittings of 4–9 kcal mol–¹), with the exception of the 4-cyanophenylcarbyne anion that has a singlet ground state (singlet–triplet splitting of −1.9 kcal mol–¹). Only ...
DOI:
10.1021/jacs.1c13714

7. Green products from herbal medicine wastes by subcritical water treatment

Author:
Maryam Jouyandeh; Omid Tavakoli; Reza Sarkhanpour; S. Mohammad Sajadi; Payam Zarrintaj; Navid Rabiee; Omid Akhavan; Eder C. Lima; Mohammad Reza Saeb
Source:
Journal of hazardous materials 2022 v.424 pp. 127294
ISSN:
0304-3894
Subject:
COVID-19 infection; acetic acid; acetone; aspartic acid; cellobiose; formic acid; fructose; glucose; glycolic acid; herbal medicines; hot water treatment; hydrolysis; lactic acid; medicine; subcritical water treatment; temperature; threonine; total organic carbon
Abstract:
... Herbal medicine wastes (HMWs) are byproducts of medicine factories, which are mainly landfilled for their environmental problems. Only bearing in mind the contamination and concerns caused by the COVID-19 pandemic and environmental emissions, the worth of herbal medicine wastes management and conversion to green products can be understood. In this work, subcritical water treatment was carried out ...
DOI:
10.1016/j.jhazmat.2021.127294

8. Hydrogen production from steam reforming of acetic acid over Pt–Ni bimetallic catalysts supported on ZrO2

Author:
Isabella C.A. Souza; Robinson L. Manfro; Mariana M.V.M. Souza
Source:
Biomass and bioenergy 2022 v.156 pp. 106317
ISSN:
0961-9534
Subject:
acetic acid; acetone; acidity; biofuels; biomass; catalysts; catalytic activity; crystallites; hydrogen production; steam; temperature
Abstract:
... Acetic acid, a model compound of bio-oil, was chosen to investigate the H₂ production from steam reforming reaction using Pt and Ni catalysts supported on ZrO₂. Ni crystallite sizes decreased with addition of Pt (from 23 to 15 nm), increasing the metallic dispersion (from 4.4 to 6.5%). A spillover effect was identified in bimetallic catalysts and caused a significant decrease of Ni reduction tempe ...
DOI:
10.1016/j.biombioe.2021.106317

9. Recyclable regeneration of NiO/NaF catalyst: Hydrogen evolution via steam reforming of oxygen-containing volatile organic compounds

Author:
Yan Ding; Yi Cai; Peiwen Li; Sasa Gu; Shixing Song; Jie Guan; Yuesong Shen; Yuchen Han; Weiyi He
Source:
Energy conversion and management 2022 v.258 pp. 115456
ISSN:
0196-8904
Subject:
acetic acid; acetone; activation energy; administrative management; adsorption; carbon; catalysts; catalytic activity; density functional theory; electric field; energy conversion; ethanol; ethyl acetate; formaldehyde; formic acid; hydrogen production; methanol; nickel oxide; steam; surface area; temperature; volatile organic compounds
Abstract:
... Regenerable NiO/NaF catalysts break the limitation that catalyst with low specific surface area is difficult to obtain high catalytic activity. In this paper, we investigated the feasibility and universal applicability of hydrogen evolution from different oxygen-containing volatile organic compounds (OVOCs) such as methanol, formaldehyde, formic acid, ethanol, acetic acid, acetone and ethyl acetat ...
DOI:
10.1016/j.enconman.2022.115456

10. Relative evaluation of in-vitro antioxidant potential and phenolic constituents by HPLC-DAD of Brassica vegetables extracted in different solvents

Author:
Mohammad Mahfuzur Rahman; Abu Tareq Mohammad Abdullah; Miskat Sharif; Sharmin Jahan; Md. Alamgir Kabir; Md. Motalab; Tanzir Ahmed Khan
Source:
Heliyon 2022 pp. e10838
ISSN:
2405-8440
Subject:
Brassica; acetic acid; acetone; antioxidant activity; antioxidants; broccoli; cabbage; cauliflower; ethanol; flavonoids; food industry; human health; methanol
Abstract:
... Cabbage, cauliflower and broccoli are well-known vegetables from the Brassica family having functional effects on human health. This study was carried out to identify different antioxidant properties and to quantify phenolic compounds by HPLC-DAD in different extracts (methanol, ethanol and water: acetic acid: acetone) of these vegetables. The results showed that, the methanolic dry extract of cab ...
DOI:
10.1016/j.heliyon.2022.e10838

11. Spatiotemporal footprints of odor compounds in megacity’s food waste streams and policy implication

Author:
Liangmao Zhang; Binghan Wang; Zijiang Wang; Kaiyi Li; Ru Fang; Yinglong Su; Dong Wu; Bing Xie
Source:
Journal of hazardous materials 2022 v.437 pp. 129423
ISSN:
0304-3894
Subject:
acetaldehyde; acetic acid; acetone; air; ambient temperature; cities; food waste; human health; humidity; issues and policy; methylene chloride; multidimensional scaling; odors; seasonal variation; China
Abstract:
... Odor pollution is one of the most critical issues in food waste (FW) recycling and has significant implications for human health. However, knowledge of their occurrence and spatiotemporally dynamic in urban FW streams is limited, making it not conducive to implement targeted odor management. This work followed the occurrence of 81 odor compounds (OCs) in nine FW-air environments along the Shanghai ...
DOI:
10.1016/j.jhazmat.2022.129423

12. Surfactant-mediated extraction of capsaicin from Capsicum annuum L. fruit in various solvents

Author:
Muhammad Waqas; Dildar Ahmed; Muhammad Tariq Qamar
Source:
Heliyon 2022 v.8 no.8 pp. e10273
ISSN:
2405-8440
Subject:
Capsicum annuum; acetic acid; acetone; acetonitrile; capsaicin; ethyl acetate; glycerol; kinetics; maceration; methanol; methylene chloride; polysorbates; solvents; toluene
Abstract:
... Capsaicin is a valuable compound found in Capsicum annuum. The present study aimed to explore the efficiency of different solvents and surfactants on its extraction by maceration. Ethyl acetate was found to be the best solvent followed by dichloromethane and acetone, respectively. Overall order of efficiency of the solvents used was this: ethyl acetate > dichloromethane > acetone > glycerol > acet ...
DOI:
10.1016/j.heliyon.2022.e10273

13. A chemo-enzymatic transformation of linalyl acetate to estragole, a phenyl propanoid ether using recombinant esterase in acetone reaction system

Author:
P. Soumya; K. Jayachandran
Source:
Process biochemistry 2022 v.121 pp. 707-715
ISSN:
1359-5113
Subject:
Bacillus subtilis; Escherichia coli; acetates; acetic acid; acetone; enzymatic hydrolysis; enzymatic treatment; esterases; genes; hydrolysis; ligands; linalool; methyl chavicol; plasmids
Abstract:
... The esterase gene from Bacillus subtilis E9 was expressed in E. coli BL21 (DE3) using the pTAC Bs-est recombinant plasmid and the enzyme was purified to determine its biocatalytic ability on the natural ester, linalyl acetate. The substrate affinity of the esterase enzyme was confirmed through docking studies on the interaction between the modelled esterase protein with the ligand. Recombinant est ...
DOI:
10.1016/j.procbio.2022.08.008

14. The use of yeast‐rich kefir grain as a starter culture in bread making

Author:
Fatma Ataç; Bilge Ertekin Filiz; Zeynep B. Guzel‐Seydim
Source:
Journal of food processing and preservation 2022 v.46 no.5 pp. e15242
ISSN:
0145-8892
Subject:
Kluyveromyces marxianus; Saccharomyces cerevisiae; acetaldehyde; acetic acid; acetone; bakers yeast; breadmaking quality; ethanol; kefir; lactic acid; sourdough; sourdough bread; starter cultures
Abstract:
... To investigate the use of yeasts and lactic acid bacteria from natural kefir grain in bread making and its effects on dough and bread quality. The kefir grains were treated with different food‐based solutions to enrich the yeast content. Three kefir samples were produced with the treated grains (KAL and SIT) and the control (KEF) kefir grains (untreated). The yeasts isolated from the kefir samples ...
DOI:
10.1111/jfpp.15242

15. Antioxidant capacity of blackcurrant (Ribes nigrum L.) leaves and buds

Author:
Cs. Orbán; É. Kis; Cs. Albert; É. Molnos
Source:
Acta Universitatis Sapientiae, Alimentaria 2021 v.14 no.1 pp. 117-129
ISSN:
2066-7744
Subject:
Ribes nigrum; acetic acid; acetone; antioxidant activity; black currants; cultivars; ethanol; free radicals; harvest date; methanol
Abstract:
... The antioxidant capacity is the combined free radical scavenging effect of all antioxidant compounds found in the studied system. There is a growing need for accurate, numerical determination of this capacity (for easier comparison), so there are many analytical procedures, methods, and measurement systems available to researchers. Neither one is able to model the totality of real, naturally occur ...
DOI:
10.2478/ausal-2021-0007

16. Biochemical Properties Affecting the Nutritional Quality, Safety, and Aroma of Dry-Cured Products Manufactured from Meat of Rare Native Pig Breeds

Author:
Ewelina Węsierska; Joanna Sobolewska-Zielińska; Małgorzata Pasternak; Katarzyna Niemczyńska-Wróbel; Robert Gąsior; Krzysztof Wojtycza; Henryk Pustkowiak; Iwona Duda; Władysław Migdał
Source:
Foods 2021 v.10 no.7 pp. -
ISSN:
2304-8158
Subject:
acetic acid; acetone; arginine; cadaverine; cured meats; decarboxylation; ethanol; histamine; histidine; lactic acid; lipid peroxidation; lysine; meat; microbial activity; nutritive value; odors; oxidation; pH; phenylacetaldehyde; putrescine; swine; tryptamine; tyramine
Abstract:
... The aim of study was to compare the biochemical properties affecting the nutritional quality, safety, and aroma of dry-cured products manufactured from valuable meat of rare native pig breeds: Pulawska (Pul) and Zlotnicka Spotted (ZS). The count of lactic acid bacteria (4.4 log cfu/g) and the release of palmitic (23.1% and 25.9%), oleic (44.1% and 42.2%), and linoleic acids (8.3% and 7.8%), as wel ...
DOI:
10.3390/foods10071597

17. Characterization of a lignin-based gel responsive to aqueous binary solvents and pH

Author:
Shogo Taira; Yuriko Usukura; Mitsukuni Nishida; Kengo Shigetomi; Yasumitsu Uraki
Source:
Holzforschung 2021 v.75 no.8 pp. 765-772
ISSN:
1437-434X
Subject:
absorbents; acetic acid; acetone; ethanol; gels; hardwood; isopropyl alcohol; lignin; methanol; moieties; pH; solvents; tetrahydrofuran
Abstract:
... A lignin-based gel (AL-PE gel) was obtained from hardwood acetic acid lignin (AL) and poly(ethylene glycol) diglycidyl ether (PE) as a cross-linker at a high AL concentration, while the reaction at a lower AL concentration yielded an amphipathic derivative (am-AL-PE). The gel has been reported to swell in aqueous ethanol but shrink in pure water and ethanol. In the present work, swelling behaviors ...
DOI:
10.1515/hf-2020-0220

18. Combined UV-irradiation and pyrolysis-GC/MS approach for evaluating the deterioration behavior of ethylene vinyl acetate

Author:
Kanako Yamada; Shogo Kumagai; Toshikazu Shiratori; Tomohito Kameda; Yuko Saito; Atsushi Watanabe; Chuichi Watanabe; Norio Teramae; Toshiaki Yoshioka
Source:
Polymer degradation and stability 2021 v.190 pp. 109623
ISSN:
0141-3910
Subject:
Fourier transform infrared spectroscopy; acetaldehyde; acetic acid; acetone; anhydrides; carbon dioxide; degradation; ethylene-vinyl acetate; irradiation; lactones; pyrolysis gas chromatography; thermal stability; thermogravimetry; ultraviolet radiation
Abstract:
... Ethylene vinyl acetate (EVA), commonly used to encapsulate photovoltaic (PV) modules, deteriorates on prolonged exposure to sunlight. In this work, fresh and deteriorated EVA samples prepared by UV irradiation (500 W m⁻²) over different periods (0–168 h) are characterized by conventional elemental analysis, microscopic observations, Fourier transform infrared (FT-IR) spectroscopy, and thermogravim ...
DOI:
10.1016/j.polymdegradstab.2021.109623

19. Cross-correlations of Biogenic Volatile Organic Compounds (BVOC) emissions typify different phenological stages and stressful events in a Mediterranean Sorghum plantation

Author:
Antonio Manco; Federico Brilli; Daniela Famulari; Daniele Gasbarra; Beniamino Gioli; Luca Vitale; Paul di Tommasi; Benjamin Loubet; Carmen Arena; Vincenzo Magliulo
Source:
Agricultural and forest meteorology 2021 v.303 pp. 108380
ISSN:
0168-1923
Subject:
Sorghum bicolor subsp. drummondii; aboveground biomass; acetaldehyde; acetic acid; acetone; adults; canopy; carbon dioxide; climate change; forests; formic acid; grain sorghum; meteorology; methanol; monoterpenoids; net ecosystem exchange; phenology; plantlets; soil; volatile organic compounds; Mediterranean region; Southern European region
Abstract:
... Climate change will affect the growing season and increase the occurrence of extreme stressful events, thus altering crop phenological phases and the associated emission of biogenic volatile organic compounds (BVOC). BVOC exchange has been poorly investigated in field crops, especially in the Mediterranean area. In this study we report continuous measurements of BVOC fluxes and CO₂ net ecosystem e ...
DOI:
10.1016/j.agrformet.2021.108380

20. Dissection and immunostaining of larval salivary glands from Anopheles gambiae mosquitoes

Author:
Chiu Michelle Z.; Lannon Steven; Luchetti Marisol; Wells Michael B.; Andrew Deborah J.
Source:
Journal of visualized experiments 2021 no.175 pp. e62989
ISSN:
1940-087X
Subject:
Anopheles gambiae; Plasmodium; acetic acid; acetone; adults; blood meal; cold; disease transmission; dissection; ethanol; hybridization; larvae; malaria; proteomics; pupae; transcriptomics; vertebrates
Abstract:
... Mosquito salivary glands (SGs) are a requisite gateway organ for the transmission of insect-borne pathogens. Disease-causing agents, including viruses and the Plasmodium parasites that cause malaria, accumulate in the secretory cavities of SG cells. Here, they are poised for transmission to their vertebrate hosts during a subsequent blood meal. As adult glands form as an elaboration of larval SG d ...
DOI:
10.3791/62989

21. Efficient catalytic degradation of toluene at a readily prepared Mn-Cu catalyst: Catalytic performance and reaction pathway

Author:
Jian-Rong Li; Wan-Peng Zhang; Chang Li; Chi He
Source:
Journal of colloid and interface science 2021 v.591 pp. 396-408
ISSN:
0021-9797
Subject:
acetaldehyde; acetic acid; acetone; benzaldehyde; benzene; benzoquinones; benzyl alcohol; catalysts; catalytic activity; coprecipitation; durability; ethanol; formaldehyde; methanol; mineralization; oxidation; oxygen; phenol; temperature; toluene
Abstract:
... Fabricating of economical transitional metal oxide-based materials with satisfied low-temperature catalytic performance and application perspective is still a challenge in deep degradation of VOCs. Here, Mn-Cu bimetallic oxides were facilely prepared by one-step hydrothermal-redox method, which displayed much higher catalytic activity in toluene oxidation than those synthesized by hydrolysis-drive ...
DOI:
10.1016/j.jcis.2021.01.096

22. Full components recovery of organic matter and indium from discarded liquid crystal display panels

Author:
Yanping Wang; Ruixue Wang; Chenglong Zhang; Jingwei Wang
Source:
Journal of cleaner production 2021 v.299 pp. 126862
ISSN:
0959-6526
Subject:
acetic acid; acetone; activated carbon; flame retardants; indium; liquid crystal display; nitrogen; oils; organic matter; phosphates; pyrolysis; reducing agents; snow
Abstract:
... In the present study, organic matter and indium were fully recycled from discarded LCD panels by microwave extraction - nitrogen pyrolysis - vacuum reduction. Triphenyl phosphate, an environmentally friendly halogen-free flame retardant, was extracted from the polarizing film using microwave extraction technology. The extraction rate under optimized conditions (acetone, 55 °C, 20 min, 1:50) was 95 ...
DOI:
10.1016/j.jclepro.2021.126862

23. La‐ H‐zeolites: efficient catalysts for acetic acid ketonic decarboxylation and esterification

Author:
Gheorghiţa Mitran; Shaojiang Chen; Wenyu Huang; Dong‐Kyun Seo
Source:
Journal of chemical technology and biotechnology 2021 v.96 no.7 pp. 2022-2032
ISSN:
0268-2575
Subject:
Fourier transform infrared spectroscopy; Lewis acids; acetates; acetic acid; acetone; acidity; adsorption; ammonium; biotechnology; decarboxylation; drugs; esterification; ion exchange; land evaluation; lanthanum; pyridines; zeolites
Abstract:
... BACKGROUND: Cyclohexyl acetate and acetone are used as environmentally friendly solvents, while isobutene acts as an intermediate in the production of methacrolein, ethers, plastics and pharmaceuticals. Two La‐zeolite catalysts have been studied for converting acetic acid to cyclohexyl acetate, acetone and isobutene. RESULTS: La‐based zeolites were synthesized from Na‐nFAU zeolites by ammonium ion ...
DOI:
10.1002/jctb.6732

24. Kinetic and mechanistic study of the gas-phase reaction of ozone with γ-terpinene

Author:
Layal Fayad; Cécile Coeur; Thomas Fagniez; Xavier Secordel; Nicolas Houzel; Gaël Mouret
Source:
Atmospheric environment 2021 v.246 pp. 118073
ISSN:
1352-2310
Subject:
acetaldehyde; acetic acid; acetone; atmospheric pressure; cyclohexanes; environment; formaldehyde; formic acid; metrology; oxidation; ozone; ozonolysis; reaction mechanisms; relative humidity; stainless steel; France
Abstract:
... The ozone reaction of γ-terpinene (1-isopropyl-4-methyl-1,4-cyclohexadiene), a monoterperne emitted by Elm, Cypress, Waterhickory and Maple trees, has been investigated at 294 ± 2 K, atmospheric pressure and under dry conditions (relative humidity, RH < 2%) in two simulation chambers of the LPCA laboratory in Dunkerque (France): CHARME (CHamber for the Atmospheric Reactivity and the Metrology of t ...
DOI:
10.1016/j.atmosenv.2020.118073

25. Kinetic and reaction mechanism of generated by-products in a photocatalytic oxidation reactor: Model development and validation

Author:
Mojtaba Malayeri; Chang-Seo Lee; Jianjun Niu; Jiping Zhu; Fariborz Haghighat
Source:
Journal of hazardous materials 2021 v.419 pp. 126411
ISSN:
0304-3894
Subject:
acetaldehyde; acetic acid; acetone; air pollution; carbon dioxide; commercialization; ethanol; formaldehyde; human health; irradiation; mass transfer; mineralization; model validation; models; oxidation; photocatalysis; pollutants; reaction mechanisms; relative humidity; risk; silica
Abstract:
... Photocatalytic oxidation is a promising technology to control air pollution. However, the formation of hazardous by-products hinders the commercialization application of this technology. This paper reports the development of a novel by-products predictive model considering the mass transfer of the pollutant in the gas phase and kinetic reaction in the solid phase. Two challenge compounds from keto ...
DOI:
10.1016/j.jhazmat.2021.126411

26. Long-term observations of oxygenated volatile organic compounds (OVOCs) in an urban atmosphere in southern China, 2014–2019

Author:
Shi-Yong Xia; Chuan Wang; Bo Zhu; Xue Chen; Ning Feng; Guang-He Yu; Xiao-Feng Huang
Source:
Environmental pollution 2021 v.270 pp. 116301
ISSN:
0269-7491
Subject:
acetaldehyde; acetic acid; acetone; aerosols; air pollution; biomass; dry season; formic acid; methanol; ozone; pollution control; spectroscopy; temporal variation; volatile organic compounds; wet season; China
Abstract:
... Oxygenated volatile organic compounds (OVOCs) are important precursors and intermediate products of atmospheric photochemical reactions, which can promote the formation of secondary pollutants such as ozone (O₃) and secondary organic aerosol (SOA). However, there have been few studies on the sources of and long-term variation in ambient OVOCs. This study combined sensitive, near real-time measurem ...
DOI:
10.1016/j.envpol.2020.116301

27. Mechanism and Kinetics of Acetone Conversion to Isobutene over Isolated Hf Sites Grafted to Silicalite-1 and SiO₂

Author:
Yanfei Zhang; Liang Qi; Alicia Lund; Peng Lu; Alexis T. Bell
Source:
Journal of the American Chemical Society 2021 v.143 no.22 pp. 8352-8366
ISSN:
1520-5126
Subject:
acetic acid; acetone; activation energy; active sites; adsorption; condensation reactions; hafnium; hydrogen bonding; partial pressure; reaction kinetics; ultraviolet-visible spectroscopy
Abstract:
... Isolated hafnium (Hf) sites were prepared on Silicalite-1 and SiO₂ and investigated for acetone conversion to isobutene. Characterization by IR, ¹H MAS NMR, and UV–vis spectroscopy suggests that Hf atoms are bonded to the support via three O atoms and have one hydroxyl group, i.e, (≡SiO)₃Hf–OH. In the case of Hf/Silicalite-1, Hf–OH groups hydrogen bond with adjacent Si–OH to form (≡SiO)₃Hf–OH···HO ...
DOI:
10.1021/jacs.1c01315

28. Oxidizing Ethanol and 2-Propanol by Hypochlorous Acid Generated from Chloride Ions on HₓWO₃ Photoelectrodes

Author:
Andrew G. Breuhaus-Alvarez; Siqi Li; Nathaniel Z. Hardin; Bart M. Bartlett
Source:
Journal of physical chemistry 2021 v.125 no.48 pp. 26307-26312
ISSN:
1932-7455
Subject:
acetaldehyde; acetic acid; acetone; calcium hypochlorite; ethanol; isopropyl alcohol; lighting; nuclear magnetic resonance spectroscopy; oxidation; pH; photoelectrodes; physical chemistry; semiconductors
Abstract:
... Photoelectrochemically oxidizing aqueous chloride electrolytes (1 M NaCl, pH 3) to hypochlorous acid proceeds on HₓWO₃ semiconducting photoelectrodes using 405 nm illumination at 100 mW/cm² with 1.0 V versus Ag/AgCl constant potential chronoamperometry. The hypochlorous acid serves as an oxidation agent upon adding 100 mM ethanol or 2-propanol into the solution. ¹H NMR spectroscopy shows that 90% ...
DOI:
10.1021/acs.jpcc.1c06286

29. Species-Specific Induction of Plant Volatiles by Two Aphid Species in Apple: Real Time Measurement of Plant Emission and Attraction of Lacewings in the Wind Tunnel

Author:
Zaid Badra; Sebastian Larsson Herrera; Luca Cappellin; Franco Biasioli; Teun Dekker; Sergio Angeli; Marco Tasin
Source:
Journal of chemical ecology 2021 v.47 no.7 pp. 653-663
ISSN:
0098-0331
Subject:
Aphis pomi; Chrysoperla carnea; Dysaphis plantaginea; acetates; acetic acid; acetone; apples; benzaldehyde; butyrates; chemical ecology; linalool; methyl salicylate; odors; pests; phenylethyl alcohol; volatile compounds; wind tunnels
Abstract:
... Upon damage by herbivores, plants release herbivory-induced plant volatiles (HIPVs). To find their prey, the pest’s natural enemies need to be fine-tuned to the composition of these volatiles. Whereas standard methods can be used in the identification and quantitation of HIPVs, more recently introduced techniques such as PTR-ToF–MS provide temporal patterns of the volatile release and detect addit ...
DOI:
10.1007/s10886-021-01288-5

30. Stationary monitoring and source apportionment of VOCs in a chemical industrial park by combining rapid direct-inlet MSs with a GC-FID/MS

Author:
Yinzhi Huang; Song Gao; Shijian Wu; Xiang Che; Yong Yang; Junjie Gu; Wen Tan; Dinghua Ruan; Guangli Xiu; Qingyan Fu
Source:
Science of the total environment 2021 v.795 pp. 148639
ISSN:
0048-9697
Subject:
acetic acid; acetone; acetonitrile; air quality; chlorobenzene; data collection; environment; ethyl acetate; ethylene dichloride; ozone; styrene; time series analysis; toluene; China
Abstract:
... Fast and comprehensive monitoring of VOCs, required for air quality management in large-scale chemical industrial parks in China, cannot be accomplished by stationary measurements using conventional GC-FID or GC–MS alone due to their low temporal resolutions and limited detectable ranges. Novel direct-inlet mass spectrometry (DI-MS) has been widely applied for real-time monitoring of VOCs. To veri ...
DOI:
10.1016/j.scitotenv.2021.148639

31. Ultrasound-Assisted Nonthermal, Nonequilibrium Separation of Organic Molecules from Their Binary Aqueous Solutions: Effect of Solute Properties on Separation

Author:
Haripriya Naidu; Junli Liu; Ozan Kahraman; Hao Feng
Source:
ACS sustainable chemistry & engineering 2021 v.9 no.48 pp. 16506-16518
ISSN:
2168-0485
Subject:
1-propanol; acetic acid; acetone; butanol; distillation; energy; ethanol; ethylene glycol; glucose; glycerol; green chemistry; hydrophobicity; methanol; mists; solubility; solutes; sucrose; surface tension; ultrasonic treatment; ultrasonics; vapor pressure; vapors; viscosity
Abstract:
... The separation of organic molecules in downstream processes, such as distillation, plays a vital role in biobased chemical production. A comprehensive study was performed here using ultrasonic energy to separate 11 organic molecules from their binary aqueous solutions under nonthermal, nonequilibrium, and phase-change free conditions. A batch sonoseparator with a three-stage mist collection unit a ...
DOI:
10.1021/acssuschemeng.1c06793

32. An antibody-free LC-MS/MS method for the quantification of intact insulin-like growth factors 1 and 2 in human plasma [Erratum: August 2021, Vol.413(21), p.5529]

Author:
Mark S. Pratt; Martijn van Faassen; Noah Remmelts; Rainer Bischoff; Ido P. Kema
Source:
Analytical and bioanalytical chemistry 2021 v.413 no.8 pp. 2035-2044
ISSN:
1618-2642
Subject:
acetic acid; acetone; acetonitrile; analytical chemistry; biomarkers; chemical species; dissociation; electrospray ionization mass spectrometry; ethanol; humans; immunoassays; quantitative analysis; reference standards; spectrometers
Abstract:
... Insulin-like growth factors 1 and 2 (IGF-1 and IGF-2) are important biomarkers in research and diagnosis of growth disorders. Quantitative analysis is performed using various ligand-binding assays or enzymatic digestion LC-MS/MS methods, whose widespread adoption is hampered by time-consuming sample preparation procedures. We present a simple and fast antibody-free LC-MS/MS method for the quantifi ...
DOI:
10.1007/s00216-021-03185-y

33. An effect blending of acetone and acetic acid as bio-oil model compound for steam reforming reaction over Ce doped LaNi0.8Fe0.2O3-based perovskite

Author:
Chenlong Liu; Plaifa Hongmanorom; Jangam Ashok; Dong Chen; Qiao Wu; Wenju Wang; Zhigang Wang
Source:
Biomass and bioenergy 2021 v.151 pp. 106177
ISSN:
0961-9534
Subject:
Fourier transform infrared spectroscopy; X-radiation; X-ray diffraction; acetic acid; acetone; adsorption; biofuels; biomass; carbon; catalysts; catalytic activity; desorption; hydrogen production; models; steam; synthesis gas; temperature
Abstract:
... Conversion of biomass tar to useful hydrogen-rich syngas will solve environmental issues related to tar emission as well as increase the overall efficiency of biomass conversion. There are various catalysts to achieve that. In this study, La₁₋ₓCeₓNi₀.₈Fe₀.₂O₃ (0 ≤ x ≤ 1) is selected, and acetic acid has been used as a biomass tar model. Fixed-bed reactor was used for this investigation, while the ...
DOI:
10.1016/j.biombioe.2021.106177

34. Catalytic Behavior of Co-Based Catalysts in the Kinetic Study of Acetic Acid Steam Reforming

Author:
Pedro J. Megía; Marta Cortese; Concetta Ruocco; Arturo J. Vizcaíno; José A. Calles; Alicia Carrero; Vincenzo Palma
Source:
Industrial & engineering chemistry process design and development 2020 v.59 no.44 pp. 19531-19538
ISSN:
1520-5045
Subject:
acetic acid; acetone; carbon dioxide; catalysts; catalytic activity; hydrogen production; kinetics; methane; models; process design; steam; temperature
Abstract:
... A kinetic model of acetic acid steam reforming is presented in this work on Co-based catalysts, accounting for the products distribution due to the main and side reactions. The Cr-promoted catalyst exhibited enhanced hydrogen yield and reduced methane selectivity in comparison to the chromium-free samples. The kinetic study was carried out in the presence of the chromium-containing catalyst betwee ...
DOI:
10.1021/acs.iecr.0c03599

35. Comparative study on the catalytic steam reforming of biomass pyrolysis oil and its derivatives for hydrogen production

Author:
Peng Fu; Andong Zhang; Shan Luo; Weiming Yi; Yuchun Zhang
Source:
RSC advances 2020 v.10 no.22 pp. 12721-12729
ISSN:
2046-2069
Subject:
acetic acid; acetone; biomass; carbon dioxide; catalysts; comparative study; ethylene glycol; hydrogen; hydrogen production; phenol; pyrolysis; pyrolysis oils; rice hulls; steam
Abstract:
... In order to explore the reforming process of biomass pyrolysis oil in depth, the catalytic steam reforming (SR) of crude bio-oil (BIO) derived from rapid pyrolysis of rice husk and its derivatives for hydrogen production was studied by means of a bench-scale fixed-bed unit combined with the FTIR/TCD technique. The physico-chemical properties and compositions of BIO were determined. Acetic acid (HO ...
DOI:
10.1039/d0ra01409e

36. Development and validation of two robust simple chromatographic methods for estimation of tomatoes specific pesticides’ residues for safety monitoring prior to food processing line and evaluation of local samples

Author:
Amira M. Hegazy; Rehab M. Abdelfatah; Hamada M. Mahmoud; Mohamed A. Elsayed
Source:
Food chemistry 2020 v.306 pp. 125640
ISSN:
0308-8146
Subject:
acetamiprid; acetic acid; acetone; acetonitrile; etofenprox; flutolanil; food processing; fruits; guidelines; health hazards; hexane; high performance liquid chromatography; methanol; monitoring; pests; standard deviation; tomatoes
Abstract:
... Combination of pesticides; acetamiprid, flutolanil and etofenprox are usually used for tomato fruits for protecting them against pest infection. Generally, pesticides, residues could be one of the health hazard sources. Two specific simple sensitive chromatographic methods are developed for simultaneous estimation of the concerning pesticides’ residues using simple economic steps of field sample p ...
DOI:
10.1016/j.foodchem.2019.125640

37. Drying Accelerators to Enhance Processing and Properties: Ethanol, Isopropanol, Acetone and Acetic Acid as Pre-treatments to Convective Drying of Pumpkin

Author:
Gisandro Reis Carvalho; Meliza Lindsay Rojas; Isabela Silveira; Pedro Esteves Duarte Augusto
Source:
Food and bioprocess technology 2020 v.13 no.11 pp. 1984-1996
ISSN:
1935-5130
Subject:
acetic acid; acetone; air; anisotropy; bioprocessing; ethanol; isopropyl alcohol; mass transfer; microstructure; pumpkins; rehydration; temperature profiles; turgor; viscoelasticity
Abstract:
... Different drying accelerators were studied to improve vegetable drying: acetone (AC), ethanol (ET), isopropanol (ISO) and acetic acid (AA). Pre-treatments were performed by immersion of pumpkin cylinders. Convective drying was performed at 40 °C and air velocity 1 m/s. Different aspects were evaluated: drying kinetics, structural changes (microstructure and macrostructure), thermal profile and vis ...
DOI:
10.1007/s11947-020-02542-6

38. Dynamics and mechanisms of volatile organic compound exchanges in a winter wheat field

Author:
A. Bachy; M. Aubinet; C. Amelynck; N. Schoon; B. Bodson; P. Delaplace; A. De Ligne; A. Digrado; P. du Jardin; M.-L. Fauconnier; A. Mozaffar; J.-F. Müller; B. Heinesch
Source:
Atmospheric environment 2020 v.221 pp. 117105
ISSN:
1352-2310
Subject:
acetaldehyde; acetic acid; acetone; aerosols; crops; developmental stages; eddy covariance; emissions; emissions factor; gases; grasses; growing season; leaves; methanol; mixing ratio; models; soil; spectrometers; volatile organic compounds; winter wheat; Belgium
Abstract:
... The understanding of biogenic volatile organic compound (BVOC) exchanges has become a key scientific issue because of their high reactivity and their impact in the atmosphere. However, so far, few studies have focused on BVOCs exchanged by agricultural species, and in particular by winter wheat, despite this species being the leading worldwide crop in terms of harvested area. This study for the fi ...
DOI:
10.1016/j.atmosenv.2019.117105

39. Efficient biohydrogen and advanced biofuel coproduction from municipal solid waste through a clean process

Author:
Farinaz Ebrahimian; Keikhosro Karimi
Source:
Bioresource technology 2020 v.300 pp. 122656
ISSN:
0960-8524
Subject:
acetic acid; acetone; biobutanol; biohydrogen; butanol; butyric acid; byproducts; catalytic activity; energy; ethanol; hydrolysates; municipal solid waste; sugars
Abstract:
... The cleanest form of energy, i.e., biohydrogen, and advanced biofuel, i.e., biobutanol, were produced from the organic fraction of municipal solid waste (OFMSW). Ethanol as a byproduct of this process was used for the pretreatment of this substrate, and this pretreatment was improved by other process byproducts, i.e., acetic acid and butyric acid. The pretreatment was conducted with 85% ethanol an ...
DOI:
10.1016/j.biortech.2019.122656

40. Frontier Molecular Orbital Based Analysis of Solid–Adsorbate Interactions over Group 13 Metal Oxide Surfaces

Author:
Chong Liu; Yuxin Li; Motoshi Takao; Takashi Toyao; Zen Maeno; Takashi Kamachi; Yoyo Hinuma; Ichigaku Takigawa; Ken-ichi Shimizu
Source:
Journal of physical chemistry 2020 v.124 no.28 pp. 15355-15365
ISSN:
1932-7455
Subject:
acetic acid; acetone; acetonitrile; adsorption; alkenes; carbon dioxide; catalytic activity; density functional theory; energy; statistical analysis
Abstract:
... Adsorption is an essential process that takes place in heterogeneous catalysis. In the current study, solid–adsorbate interactions occurring between a variety of small molecules and surfaces of group 13 metal oxides, including β-Ga₂O₃(100), β-Ga₂O₃(001), θ-Al₂O₃(100), θ-Al₂O₃(001), θ-Al₂O₃(010), In₂O₃(110), and In₂O₃(111), were investigated using density functional theory calculations and a machin ...
DOI:
10.1021/acs.jpcc.0c04480

41. Impact of Lactobacillus paracasei IMC502 in coculture with traditional starters on volatile and non-volatile metabolite profiles in yogurt

Author:
Yuxiang Gu; Xing Li; Ran Xiao; Olayemi Eyituoyo Dudu; Lin Yang; Ying Ma
Source:
Process biochemistry 2020 v.99 pp. 61-69
ISSN:
1359-5113
Subject:
Lactobacillus paracasei; acetaldehyde; acetic acid; acetoin; acetone; amino acid metabolism; biosynthesis; coculture; diacetyl; flavor; gas chromatography-mass spectrometry; lactose; metabolomics; multivariate analysis; nucleosides; secondary metabolites; solid phase microextraction; sulfur; yogurt
Abstract:
... The impact of Lactobacillus paracasei IMC502 co-fermented with traditional starters on metabolites in yogurt was evaluated using metabolomic analysis. Forty-four volatile metabolites were determined using headspace solid phase microextraction and gas chromatography-mass spectrometry, including alcohols, esters, organic acids, carbonyl and sulfur compounds. Acetaldehyde, diacetyl, acetoin, acetone, ...
DOI:
10.1016/j.procbio.2020.07.003

42. New analytical method for chlorpyrifos determination in biobeds constructed in Brazil: Development and validation

Author:
Gustavo D. Quatrin; Ionara R. Pizzutti; Luciano Gebler; Jonatan V. Dias; Carmem D. Cardoso
Source:
Journal of chromatography 2020 v.1157 pp. 122285
ISSN:
1570-0232
Subject:
acetic acid; acetone; centrifugation; chlorpyrifos; detection limit; filtration; homogenization; methanol; pesticide residues; phosphoric acid; tandem mass spectrometry; ultra-performance liquid chromatography; Brazil
Abstract:
... A quick and efficient method was optimized and validated to determine chlorpyrifos in biobeds using ultra-performance liquid chromatography coupled to tandem mass spectrometry (UPLC-MS/MS). Chlorpyrifos was extracted from the matrix with 30 mL of a mixture of acetone, phosphoric acid and water 98:1:1 (v/v/v). After homogenization, centrifugation and filtration, 125 µL of the extract was evaporated ...
DOI:
10.1016/j.jchromb.2020.122285

43. Photochemical aging of Beijing urban PM2.5: Production of oxygenated volatile organic compounds

Author:
Hongling Xia; Di Huang; Fengxia Bao; Meng Li; Yue Zhang; Chuncheng Chen; Jincai Zhao
Source:
Science of the total environment 2020 v.743 pp. 140751
ISSN:
0048-9697
Subject:
acetaldehyde; acetic acid; acetone; environment; formic acid; lighting; organic matter; oxidation; photoaging; photolysis; pollutants; troposphere; volatile organic compounds; China
Abstract:
... PM₂.₅ has become the dominant atmospheric pollutant in many countries. Many components of PM₂.₅ are highly photoactive. However, the photochemical aging of PM₂.₅ remains poorly understood. In this study, the photoaging of real PM₂.₅ samples collected from 2017 to 2018 in Beijing under simulated solar radiation (λ ~ 340–850 nm) was investigated. Our study showed that large amounts of oxygenated vol ...
DOI:
10.1016/j.scitotenv.2020.140751

44. Probing toluene catalytic removal mechanism over supported Pt nano- and single-atom-catalyst

Author:
Zhiwei Wang; Huanggen Yang; Rui Liu; Shaohua Xie; Yuxi Liu; Hongxing Dai; Haibao Huang; Jiguang Deng
Source:
Journal of hazardous materials 2020 v.392 pp. 122258
ISSN:
0304-3894
Subject:
acetic acid; acetone; benzaldehyde; benzene; carbon dioxide; carbonates; catalysts; catalytic activity; combustion; maleic anhydrides; nanoparticles; phthalic acid; platinum; sulfates; sulfites; sulfur dioxide; titanium dioxide; toluene; xylene
Abstract:
... Commercial TiO₂ supported 0.20 wt% Pt catalyst is obtained via the molten salt method, and both Pt nanoparticles and single atom Pt sites are observed. It exhibits high catalytic performance for toluene oxidation, with T₅₀ and T₉₀ being 173 and 183 °C, respectively. Reaction intermediates including benzene, p-xylene, o-xylene, benzaldehyde, phthalic acid, maleic anhydride, itaconic anhydride, acet ...
DOI:
10.1016/j.jhazmat.2020.122258

45. Proceeding toward the development of poly(ɛ-caprolactone)/cellulose microfibrils electrospun biocomposites using a novel ternary solvent system

Author:
Mohsen Zolfagharlou Kouhi; Tayebeh Behzad; Laleh Ghasemi-Mobarakeh; Alireza Allafchian; Zahra Moazzami Goudarzi; Mohammad Saeid Enayati
Source:
The journal of the Textile Institute 2020 v.111 no.2 pp. 249-259
ISSN:
1754-2340
Subject:
acetic acid; acetone; biocompatible materials; biocomposites; cellulose microfibrils; contact angle; crystal structure; differential scanning calorimetry; fabrics; formic acid; hydrophilicity; lactones; nanocomposites; nanofibers; rice hulls; scanning electron microscopy; solvents; tensile strength; thermal properties; viscosity; wide-angle X-ray scattering
Abstract:
... In the current study, a mixture of formic acid (FA), acetic acid (AA), and acetone was used, for the first time, as a ternary solvent system to dissolve poly(ɛ-caprolactone) (PCL). In addition, as a biomaterial reinforcement, various amounts of cellulose microfibrils (CMF) (1.5, 3, and 5 wt.%), extracted from rice husk, were added to PCL solution, and subsequently the prepared suspensions were ind ...
DOI:
10.1080/00405000.2019.1633216

46. Quantification of oxygenates, sulphides, thiols and permanent gases in propylene. A multiple linear regression model to predict the loss of efficiency in polypropylene production on an industrial scale

Author:
Joaquin Hernández-Fernández
Source:
Journal of chromatography 2020 v.1628 pp. 461478
ISSN:
0021-9673
Subject:
1-propanol; acetic acid; acetone; butanol; carbon dioxide; ethanol; fluidized beds; formic acid; gas chromatography; helium; ionization; isopropyl alcohol; mass spectrometry; methanol; models; polypropylenes; propylene; regression analysis; standard deviation
Abstract:
... This research developed a new methodology using a gas chromatograph, a pulsed discharge helium ionization detector (PDHID), and two mass spectrometric (MSD) detectors. The detectors worked simultaneously, using 8 columns and 7 valves. This new proposal for simultaneous analysis, with a single injection and analysis time of 36 min, allowed the quantification of 10 oxygenated compounds (alcohols, ke ...
DOI:
10.1016/j.chroma.2020.461478

47. Quantitative NMR analysis of the aqueous phase from hydrothermal liquefaction of lignin

Author:
Hilde V. Halleraker; Tanja Barth
Source:
Journal of analytical and applied pyrolysis 2020 v.151 pp. 104919
ISSN:
0165-2370
Subject:
acetic acid; acetone; biomass; catalysts; catechol; formic acid; hydrothermal liquefaction; lignin; methanol; petroleum; phenol; pyrolysis; temperature
Abstract:
... Hydrothermal liquefaction (HTL) of biomass such as lignin could contribute to finding replacements for petroleum, both as a fuel and production of chemicals. The organic phase produced in formic acid assisted HTL of lignin has been extensively analyzed previously. The solid phase is routinely analyzed by elemental analysis, and the gas phase has also been studied. The aqueous phase, on the other h ...
DOI:
10.1016/j.jaap.2020.104919

48. Reaction kinetic study of nonthermal plasma continuous degradation of acetone in a closed-loop reactor

Author:
Xueshuang Li; Man Li; Zhen Peng; Kewen Zheng; Li Xu; Junguo Dong; Guofa Ren; Ping Cheng
Source:
Chemosphere 2020 v.249 pp. 126215
ISSN:
0045-6535
Subject:
acetaldehyde; acetic acid; acetone; byproducts; formic acid; mass spectrometry; methanol; nitrogen dioxide; ozone; prediction; reaction kinetics; volatile organic compounds
Abstract:
... Nonthermal plasma (NTP) degradation has been shown to be a promising method for volatile organic compounds (VOCs) removal from air. However, there have been few studies on the degradation of indoor VOCs using NTP, and even less on their reaction kinetics. In this study, NTP degradation of acetone, a representative of oxygenated VOCs, in a closed-loop reactor operating in recirculation mode was inv ...
DOI:
10.1016/j.chemosphere.2020.126215

49. Simultaneous estimation of dimenhydrinate, cinnarizine and their toxic impurities benzophenone and diphenylmethylpiperazine; in silico toxicity profiling of impurities

Author:
Nada S. Abdelwahab; Fadwa H. Edrees; Mohammed T. Alsaadi; Noha H. Amin; Ahmed S. Saad
Source:
RSC advances 2020 v.10 no.61 pp. 37439-37448
ISSN:
2046-2069
Subject:
acetic acid; acetone; additives; benzophenones; carcinogenicity; computer simulation; drug formulations; environmental impact; estimation; ethanol; guidelines; hepatotoxicity; hexane; piperazine; separation; volume
Abstract:
... The British Pharmacopeia (BP) reported that the carcinogenic and hepatotoxic, benzophenone (BZP) is a dimenhydrinate (DMH) impurity. On the other hand, cinnarizine (CIN) is reported to have five impurities (A–E). The toxicity profile of CIN impurities was studied and the in silico data revealed that impurity A [1-(diphenylmethyl)piperazine] (DPP) was the most toxic CIN impurity, and hence it was s ...
DOI:
10.1039/d0ra06147f

50. Study of nutritional quality of pomegranate (Punica granatum L.) juice using 1H NMR-based metabolomic approach: A comparison between conventionally and organically grown fruits

Author:
Nemesio Villa-Ruano; Alberto Rosas-Bautista; Enrique Rico-Arzate; Yair Cruz-Narvaez; L. Gerardo Zepeda-Vallejo; Liliana Lalaleo; Diego Hidalgo-Martínez; Elvia Becerra-Martínez
Source:
Lebensmittel-Wissenschaft + Technologie 2020 v.134 pp. 110222
ISSN:
0023-6438
Subject:
Punica granatum; acetic acid; acetone; alanine; arginine; aspartic acid; discriminant analysis; edible fruits; ethanol; fumaric acid; galactose; glutamine; histidine; isoleucine; lactic acid; leucine; malic acid; mannose; metabolomics; methionine; multivariate analysis; nutritive value; phenylalanine; pomegranates; principal component analysis; proline; sucrose; threonine; trigonelline; tyrosine; valine
Abstract:
... Pomegranate is an edible fruit with a valuable content of bioactive molecules. This work describes the metabolomic profiling of pomegranate samples collected from conventional and organic cultures by using a combined ¹H NMR-based and multivariate analysis protocol. The results of Principal Component Analysis (PCA) and Orthogonal Projections to Latent Structures Discriminant Analysis (OPLS-DA) reve ...
DOI:
10.1016/j.lwt.2020.110222