Results 101 to 110 of about 10,745 (217)
Dosage fluorimétrique de l'acétoïne dans le vin
OENO One, 1994 Les auteurs proposent une technique analytique de dosage de l'acétoïne dans les vins après oxydation en diacétyle et condensation de ce dernier avec le diamineanisol-3,4. Le produit de condensation émet une forte fluorescence à partir de laquelle on peut
Anastasios N. Voulgaropoulos, Th. Soulis
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Studies on Acetoin Fermentation
Journal of the agricultural chemical society of Japan, 1953 l-Arabinose is the best carbon source in order to increase the yield of acetoin (acetylmethylcarbinol) by using B. natto, and d-glucose is the next. The highest yield of acetoin in this experiment was 562mg per 100cc of the medium, or 11.04% of consumed l-arabinose. On the other hand, the best nitrogen source is casein and the next is peptone. It seems
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A thermophilic cell-free cascade enzymatic reaction for acetoin synthesis from pyruvate
Scientific Reports, 2017 Acetoin (3-hydroxy-2-butanone) is an important bio-based platform chemical with wide applications. In vitro enzyme catalysed synthesis exhibits great feasibility in the production of chemicals with high purity.
Xiaojing Jia, Ying Liu, Yejun Han
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Formation of α-hydroxycarbonyl and α-dicarbonyl compounds during degradation of monosaccharides
Czech Journal of Food Sciences, 2007 The formation of α-hydroxycarbonyl and α-dicarbonyl compounds from monosaccharides (glucose, fructose, arabinose, glyceraldehyde, and 1,3-dihydroxyacetone) was studied in three different model systems comprising an aqueous and alkaline solution of ...
Ondřej Novotný +2 more
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Acetoin Synthesis Acquisition Favors Escherichia coli Growth at Low pH
, 2014 Some members of the family Enterobacteriaceae ferment sugars via the mixed-acid fermentation pathway. This yields large amounts of acids, causing strong and sometimes even lethal acidification of the environment.
Moons, Pieter +3 more
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Metabolism of acetoin in Clostridium acetobutylicum ATCC 824
, 1999 Acetoin is a product of fermentation by C. acetobutylicum, and a component of several natural and artificial flavors, including butter flavor. Acetolactate synthase (ALS) catalyzes the production of acetolactate from pyruvate.
Wardwell, Stephanie Anne
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Biotechnology for Biofuels, 2013 Background Acetoin is an important bio-based platform chemical. However, it is usually existed as a minor byproduct of 2,3-butanediol fermentation in bacteria.
Ji Xiao-Jun +6 more
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Metabolic Engineering of Bacillus methanolicus MGA3 for Production of Acetoin
, 2018 Being a pure, inexpensive, non-food chemical that can be sustainably produced, methanol has attracted great interest as a carbon feedstock for microbial production of commodity/specialty chemicals. In this thesis, methanol-based production of acetoin was
Chan, Dennis Tin Chat
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Acetaldehyde Disappearance and Acetoin Formation in vitro
Experimental Biology and Medicine, 1949 SummaryIn agreement with previous in vivo studies, liver homogenate metabolized acetaldehyde more rapidly than other tissues and without the formation of much acetoin. Methylene blue stimulated the aerobic metabolism of acetaldehyde in rat liver but not dog liver.Skeletal muscle formed more acetoin from acetaldehyde than did brain or kidney.
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Biochemical evidence for multiple acetoin-forming enzymes in cultured plant cells
, 1999 Acetoin (3-hydroxy-2-butanon) production was investigated in extracts from suspension cultured cells of carrot, tobacco, maize and rice. Crude extracts were able to catalyze acetoin synthesis from pyruvate and/or acetaldehyde at rates ranging from 0.02 ...
FORLANI, Giuseppe +2 more
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