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1. Correction to: Acetaldehyde emission from wood induced by the addition of ethanol

Author:
Tohmura, Shin-ichiro; Ishikawa, Atsuko; Miyamoto, Kohta; Inoue, Akio
Source:
Journal of wood science 2018 v.64 no.1 pp. 65
ISSN:
1435-0211
Subject:
acetaldehyde,   etc   ; ethanol; wood;     Show all 3 Subjects
Abstract:
... The article Acetaldehyde emission from wood induced by the addition of ethanol, written by Shin-ichiro Tohmura, Atsuko Ishikawa, Kohta Miyamoto and Akio Inoue, was originally published Online First without open access. ...
DOI:
10.1007/s10086-017-1674-8

2. Acetaldehyde reactions during wine bottle storage

Author:
Han, Guomin; Webb, Michael R.; Waterhouse, Andrew L.
Source:
Food chemistry 2019
ISSN:
0308-8146
Subject:
acetaldehyde,   etc   ; anthocyanins; bottling; coumaric acids; flavonols; glycerol; oxidation; oxygen; wines;     Show all 9 Subjects
Abstract:
... Acetaldehyde is a major wine oxidation product. Here, three Cabernet Sauvignon wines, containing different levels of acetaldehyde from different micro-oxygenation (mOx) regimes, including yeast-mediated treatments, were aged under closures differing in oxygen ingress. Oxygen, phenolics, carbonyls and heterocyclic acetals were measured. Acetaldehyde levels at bottling was a significant factor in th ...
DOI:
10.1016/j.foodchem.2019.03.137

3. Reaction kinetics of the acetaldehyde-mediated condensation between (−)-epicatechin and anthocyanins and their effects on the color in model wine solutions

Author:
Liu, Yue; Zhang, Xin-Ke; Shi, Ying; Duan, Chang-Qing; He, Fei
Source:
Food chemistry 2019 v.283 pp. 315-323
ISSN:
0308-8146
Subject:
acetaldehyde,   etc   ; activation energy; anthocyanins; color; endothermy; hydroxylation; isomers; methylation; models; reaction kinetics; temperature; wines;     Show all 12 Subjects
Abstract:
... The reaction kinetics of five primary wine anthocyanins (cyanidin-3-O-glucoside, peonidin-3-O-glucoside, delphinidin-3-O-glucoside, petunidin-3-O-glucoside, and malvidin-3-O-glucoside) and (−)-epicatechin with the presence of acetaldehyde were evaluated in model wine solutions at a range of varying temperatures (25, 35, 45, and 55 °C). The loss of anthocyanins followed first-order reaction model, ...
DOI:
10.1016/j.foodchem.2018.12.135

4. Exposure to benzene, toluene, ethylbenzene, xylene, formaldehyde, and acetaldehyde in and around gas stations in Japan

Author:
Shinohara, Naohide; Okazaki, Yukiyo; Mizukoshi, Atsushi; Wakamatsu, Shinji
Source:
Chemosphere 2019 v.222 pp. 923-931
ISSN:
0045-6535
Subject:
acetaldehyde,   etc   ; air; benzene; ethylbenzene; formaldehyde; human resources; neoplasms; occupational exposure; risk; spring; toluene; winter; xylene; Japan;     Show all 14 Subjects
Abstract:
... We investigated the personal exposure of gas station employees to benzene, toluene, ethylbenzene, xylene, formaldehyde, and acetaldehyde at three full-service gas stations in Okayama, Japan. We also assessed both the indoor (offices) and ambient background concentrations. The personal exposure, indoor, and ambient concentrations of benzene were 57.3, 6.11, and 1.31 μg/m3, respectively, in spring a ...
DOI:
10.1016/j.chemosphere.2019.01.166

5. Heterologous expression and characterization of novel 2-Deoxy-d-ribose-5-phosphate aldolase (DERA) from Pyrobaculum calidifontis and Meiothermus ruber

Author:
Lou, Xiao-cong; Zheng, Cheng-cai; Chen, Wen-qi; Ma, Yuan-xin; Mkingule, Idefonce; He, Fei-fan; Fei, Hui
Source:
Process biochemistry 2019 v.80 pp. 35-42
ISSN:
1359-5113
Subject:
acetaldehyde,   etc   ; Escherichia coli; Meiothermus ruber; catalytic activity; fructose-bisphosphate aldolase; genes; heterologous gene expression;     Show all 7 Subjects
Abstract:
... To overcome the deficiency in which 2-Deoxy-d-ribose-5-phosphate aldolase (DERA) exhibits low levels of catalytic efficiency in aldol reactions and poor tolerance for high concentrations of aldehyde, two novel deoC genes encoding DERAPyc and DERAMet were identified in Pyrobaculum calidifontis and Meiothermus ruber that had heterologous expression in E. coli BL21. The specific activities toward 2-D ...
DOI:
10.1016/j.procbio.2019.02.006

6. Oxidation of Ethanol Blended Gasoline Surrogates in a Flow Reactor

Author:
Han, Dongxue; Yin, Hongming; Qian, Enchao; Liu, Dajun; Ye, Lili
Source:
Energy & fuels 2019 v.33 no.4 pp. 3602-3609
ISSN:
1520-5029
Subject:
acetaldehyde,   etc   ; emissions; ethanol; formaldehyde; gasoline; heptane; iso-octanes; methanol; oxidation; oxygen; temperature;     Show all 11 Subjects
Abstract:
... The oxidation of ethanol blended with gasoline surrogates, a mixture of iso-octane and n-heptane, was studied in a flow reactor to evaluate the influence of ethanol content and oxygen concentration on the oxidation behaviors of reactants and the emissions of methanol, formaldehyde, and acetaldehyde. The blend with 10% ethanol content accelerated the emergence of the negative temperature coefficien ...
DOI:
10.1021/acs.energyfuels.9b00226

7. Explaining the Incorporation of Oxygen Derived from Solvent Water into the Oxygenated Products of CO Reduction over Cu

Author:
Clark, Ezra L.; Wong, Jonathan; Garza, Alejandro J.; Lin, Zhou; Head-Gordon, Martin; Bell, Alexis T.
Source:
Journal of the American Chemical Society 2019 v.141 no.10 pp. 4191-4193
ISSN:
1520-5126
Subject:
acetaldehyde,   etc   ; carbon dioxide; carbon monoxide; copper; electrochemistry; isotopes; oxygen; reaction mechanisms; solvents;     Show all 9 Subjects
Abstract:
... The electrochemical reduction of CO and CO₂ over Cu produces a variety of multicarbon products. Interestingly, recent isotope experiments have suggested that the oxygen atoms contained in the multicarbon alcohols produced over Cu are derived from solvent water. This observation has brought into question many of the proposed reaction mechanisms by which these multicarbon alcohols are produced over ...
DOI:
10.1021/jacs.8b13201

8. Effect of Sr Substitution in LaMnO₃(100) on Catalytic Conversion of Acetic Acid to Ketene and Combustion-Like Products

Author:
Zhang, Yafen; Mullins, David R.; Savara, Aditya
Source:
Journal of physical chemistry 2019 v.123 no.7 pp. 4148-4157
ISSN:
1932-7455
Subject:
acetaldehyde,   etc   ; acetic acid; carbon dioxide; carbon monoxide; oxygen; physical chemistry; strontium;     Show all 7 Subjects
Abstract:
... The chemistry of acetic acid reactions was studied over La₁–ₓSrₓMnO₃(100) surfaces (x = 0, 0.3, or 0.7). Two types of temperature-programmed reaction (TPR) experiments were performed: pre-exposure TPRs as well as continuous-exposure TPRs (CE-TPRs). The main products observed in both types of experiments were CO, CO₂, H₂O, acetaldehyde, and ketene (ethenone). In acetic acid CE-TPR experiments with ...
DOI:
10.1021/acs.jpcc.8b10921

9. Glycerol valorization to lactic acid catalyzed by hydroxyapatite‐supported palladium particles

Author:
Shen, Lingqin; Yu, Zhongyong; Zhang, Di; Yin, Hengbo; Wang, Chengtao; Wang, Aili
Source:
Journal of chemical technology and biotechnology 2019 v.94 no.1 pp. 204-215
ISSN:
0268-2575
Subject:
acetaldehyde,   etc   ; biomass; catalysts; fermentation; glycerol; hydrogen cyanide; hydroxyapatite; lactic acid; nanoparticles; oxidation; palladium; sodium hydroxide;     Show all 12 Subjects
Abstract:
... BACKGROUND: Catalytic formation of lactic acid from biomass glycerol is a sustainable alternative to the conventional fermentation process starting from carbohydrate and the chemical route using HCN and acetaldehyde. Highly concentrated glycerol can be effectively converted to lactic acid using hydroxyapatite‐supported palladium particles in the presence of NaOH. RESULTS: The 3% hydroxyapatite‐sup ...
DOI:
10.1002/jctb.5765

10. Design of a separation section in an ethanol-to-butanol process

Author:
Michaels, Wesley; Zhang, Hanyu; Luyben, William L.; Baltrusaitis, Jonas
Source:
Biomass and bioenergy 2018 v.109 pp. 231-238
ISSN:
0961-9534
Subject:
acetaldehyde,   etc   ; butanol; distillation; ethanol; ethyl acetate; hydrogen;     Show all 6 Subjects
Abstract:
... A complete separation scheme has been designed for the effluent of a high-pressure ethanol-to-butanol catalytic reactor, producing 250,000 tonnes of n-butanol per year. The effluent contains water, hydrogen and a diverse range of C2-C4 oxygenates: unconverted ethanol, n-butanol, acetaldehyde, ethyl acetate, and acetal. Fundamental phase equilibrium relationships suggested use of conventional, extr ...
DOI:
10.1016/j.biombioe.2017.12.031

11. Effects of Metal Ion Addition on Acetic Acid Removal by Saccharomyces cerevisiae during Lychee Wine Fermentation

Author:
He, Rong-Rong; Wang, Zhen-Chang; Tong, Hai-Feng; Chen, Wen-Xue; Chen, Wei-Jun; Chen, Hai-Ming; Zhong, Qiu-Ping
Source:
International journal of food engineering 2019 v.15 no.1-2
ISSN:
1556-3758
Subject:
acetaldehyde; acetaldehyde dehydrogenase,   etc   ; Saccharomyces cerevisiae; acetate-CoA ligase; acetic acid; acidity; bacteria; calcium; cations; fermentation; fruit juices; glycerol; isocitrate lyase; lactic acid; litchis; magnesium; malate synthase; malic acid; metabolites; metal ions; odors; potassium; succinic acid; wines; yeasts;     Show all 25 Subjects
Abstract:
... Acetic acid (AA) is the main component of the volatile acidity of lychee wine. It can be generated by yeast, contaminated lactic acid, and AA bacteria at any time during lychee wine fermentation. AA has a negative impact on yeast fermentative performance and affects the quality of lychee wine when present above a given concentration. Thus, excessive amounts of AA should be removed to control the q ...
DOI:
10.1515/ijfe-2018-0003

12. Thermal behaviors and harmful volatile constituents released from asphalt components at high temperature

Author:
Xia, Wenjing; Xu, Tao; Wang, Hao
Source:
Journal of hazardous materials 2019 v.373 pp. 741-752
ISSN:
0304-3894
Subject:
acetaldehyde,   etc   ; asphaltenes; bitumen; combustion; heat production; microstructure; polycyclic compounds; propane; resins; temperature; thermal properties; toxic substances; toxicity;     Show all 13 Subjects
Abstract:
... Asphalt binder releases lots of heat and harmful volatiles at high temperature. To further understand thermal behaviors, dynamic release and toxic constituents of emitted volatiles during the combustion of asphalt binder, such fractions as saturates, aromatics, resins and asphaltenes (SARA) were first prepared. Thermal behaviors, volatile constituents and combustion residue microstructures of SARA ...
DOI:
10.1016/j.jhazmat.2019.04.004

13. Characterizing oxygenated volatile organic compounds and their sources in rural atmospheres in China

Author:
Han, Yu; Huang, Xiaofeng; Wang, Chuan; Zhu, Bo; He, Lingyan
Source:
Journal of environmental sciences (China) 2019 v.81 pp. 148-155
ISSN:
1001-0742
Subject:
acetaldehyde,   etc   ; acetic acid; acetone; diurnal variation; formic acid; mass spectrometry; methanol; photochemistry; pollution; summer; volatile organic compounds; China;     Show all 12 Subjects
Abstract:
... Oxygenated volatile organic compounds (OVOCs) are important precursors and products of atmospheric secondary pollution. The sources of OVOCs, however, are still quite uncertain, especially in the atmosphere with much pollution in China. To study the sources of OVOCs in rural atmospheres, a proton transfer reaction mass spectrometry (PTR-MS) was deployed at a northern rural site (WD) and a southern ...
DOI:
10.1016/j.jes.2019.01.017

14. Triplet–Triplet Annihilation Upconversion in Broadly Absorbing Layered Film Systems for Sub-Bandgap Photocatalysis

Author:
Hagstrom, Anna L.; Weon, Seunghyun; Choi, Wonyong; Kim, Jae-Hong
Source:
ACS applied materials & interfaces 2019 v.11 no.14 pp. 13304-13318
ISSN:
1944-8252
Subject:
acetaldehyde,   etc   ; absorption; air; fluorescence; geometry; hydroxyl radicals; light emitting diodes; models; photocatalysis; photocatalysts; photons; polymers; volatile organic compounds;     Show all 13 Subjects
Abstract:
... Upconversion (UC) of sub-bandgap photons extends the effective light absorption range of photovoltaic and photocatalytic devices, allowing them to reach higher conversion efficiencies. Recent advances in polymer host materials make it possible to translate triplet–triplet annihilation (TTA)-UC, the UC mechanism most suitable for this purpose, to solid films that can be integrated into devices. The ...
DOI:
10.1021/acsami.9b01945

15. Metabolic engineering of Enterobacter aerogenes to improve the production of 2,3-butanediol

Author:
Thapa, Laxmi Prasad; Lee, Sang Jun; Park, Chulhwan; Kim, Seung Wook
Source:
Biochemical engineering journal 2019 v.143 pp. 169-178
ISSN:
1369-703X
Subject:
acetaldehyde dehydrogenase,   etc   ; Enterobacter aerogenes; acetates; acetyltransferases; batch fermentation; bioreactors; ethanol; genes; lactate dehydrogenase; lactic acid; malate dehydrogenase; metabolic engineering; phosphates;     Show all 13 Subjects
Abstract:
... The enhanced production of 2,3-butanediol was investigated using a metabolic engineering approach and optimized fermentation conditions. New engineered strains of Enterobacter aerogenes ATCC 29007 were developed by deleting the d-lactate dehydrogenase (ldhA), phosphate acetyltransferase (pta), malate dehydrogenase (mdh), and acetaldehyde dehydrogenase (acdh) genes to block the production of lactat ...
DOI:
10.1016/j.bej.2018.12.019

16. Cobalt nanoparticles mechanically deposited on α‐Al2O3: a competitive catalyst for the production of hydrogen through ethanol steam reforming

Author:
Riani, Paola; Garbarino, Gabriella; Canepa, Fabio; Busca, Guido
Source:
Journal of chemical technology and biotechnology 2019 v.94 no.2 pp. 538-546
ISSN:
0268-2575
Subject:
acetaldehyde,   etc   ; aluminum oxide; annealing; carbon nanotubes; catalysts; cobalt; coprecipitation; crystallization; ethanol; graphene; hydrogen; hydrogen production; methane; mixing; nanoparticles; steam;     Show all 16 Subjects
Abstract:
... BACKGROUND: Cobalt (Co)‐containing materials are promising catalysts for Ethanol Steam Reforming (ESR) allowing renewable hydrogen production. Usually, complex catalysts are used where Co, produced by impregnation or coprecipitation, is supported on oxide or carbon‐based materials. Here Co nanoparticles (CoNPs) mechanically mixed with α‐Al₂O₃ are prepared and tested for ESR. RESULTS: CoNPs mechani ...
DOI:
10.1002/jctb.5800

17. Ethanol dehydrogenative reactions catalyzed by copper supported on porous Al–Mg mixed oxides

Author:
Petrolini, Davi D.; Cassinelli, Wellington H.; Pereira, Cristiane A.; Urquieta-González, Ernesto A.; Santilli, Celso V.; Martins, Leandro
Source:
RSC advances 2019 v.9 no.6 pp. 3294-3302
ISSN:
2046-2069
Subject:
acetaldehyde,   etc   ; aluminum; catalysts; catalytic activity; copper; dehydrogenation; ethanol; ethyl acetate; nitrates; oxides; porous media; sol-gel processing;     Show all 12 Subjects
Abstract:
... Mixed aluminum and magnesium oxides (AlMgO) prepared by means of an emulsion-mediated sol–gel method was impregnated with copper nitrate solution and used in the ethanol dehydrogenative reactions to produce acetaldehyde and ethyl acetate. The emulsified system allowed to obtain a macro–mesoporous support that resulted in an outstanding dispersion of copper. The porous catalyst was about 3 times mo ...
DOI:
10.1039/c8ra10076d

18. Reverse metabolic engineering in lager yeast: impact of the NADH/NAD+ ratio on acetaldehyde production during the brewing process

Author:
Xu, Xin; Wang, Jinjing; Bao, Min; Niu, Chengtuo; Liu, Chunfeng; Zheng, Feiyun; Li, Yongxian; Li, Qi
Source:
Applied microbiology and biotechnology 2019 v.103 no.2 pp. 869-880
ISSN:
0175-7598
Subject:
acetaldehyde,   etc   ; NAD (coenzyme); amino acid metabolism; beers; brewers yeast; brewing; cofactor engineering; fermentation; off flavors; tricarboxylic acid cycle;     Show all 10 Subjects
Abstract:
... Acetaldehyde is synthesized by yeast during the main fermentation period of beer production, which causes an unpleasant off-flavor. Therefore, there has been extensive effort toward reducing acetaldehyde to obtain a beer product with better flavor and anti-staling ability. In this study, we discovered that acetaldehyde production in beer brewing is closely related with the intracellular NADH equiv ...
DOI:
10.1007/s00253-018-9517-0

19. Synthetic Approach to the Preparation of (2-Acetoxy)allyl Nitro Compounds

Author:
Gabrielli, Serena; Mariotti, Nicole; Chiurchiù, Elena; Ballini, Roberto; Petrini, Marino; Palmieri, Alessandro
Source:
Journal of organic chemistry 2018 v.83 no.20 pp. 12855-12862
ISSN:
1520-6904
Subject:
acetaldehyde,   etc   ; acetylation; alcohols; moieties; nitroalkanes; organic chemistry; oxidation;     Show all 7 Subjects
Abstract:
... A synthetic approach to a new class of allyl nitro derivatives is reported. (2-Acetoxy)allyl nitro compounds have been prepared for the first time in a four-step procedure by a preliminary reaction of nitroalkanes with 2-(phenylselenyl)acetaldehyde. After the acetylation of the obtained nitro alcohols, the unsaturation is installed by an oxidation reaction involving the phenylselenyl group followe ...
DOI:
10.1021/acs.joc.8b01744

20. The Aldolization Nature of Mn4+-Nonstoichiometric Oxygen Pair Sites of Perovskite-Type LaMnO3 in the Conversion of Ethanol

Author:
Chen, Ren-Kai; Yu, Ting-Fang; Wu, Meng-Xun; Tzeng, Tai-Wei; Chung, Po-Wen; Lin, Yu-Chuan
Source:
ACS sustainable chemistry & engineering 2018 v.6 no.9 pp. 11949-11958
ISSN:
2168-0485
Subject:
acetaldehyde,   etc   ; acidity; catalysts; condensation reactions; ethanol; manganese; oxygen; particle size;     Show all 8 Subjects
Abstract:
... This study reports that the C2–C2 aldolization in ethanol conversion to C4 products, particularly butadiene, can be catalyzed by silica-supported LaMnO₃ catalysts. The concentration and strength of Mn⁴⁺ was discovered to be related to the particle size of supported LaMnO₃: the smaller the particle size is, the higher the concentration and acidity of Mn⁴⁺ are. The presence of high concentration and ...
DOI:
10.1021/acssuschemeng.8b02269