Results 21 to 30 of about 576 (111)

Comprehensive review of sweetpotato flavor compounds: Opportunities for developing consumer‐preferred varieties

open access: yesComprehensive Reviews in Food Science and Food Safety, Volume 24, Issue 3, May 2025.
Abstract Flavor contributes significantly to consumer preferences of cooked sweetpotato. Sugars largely drive the sweet taste, while the volatile organic compounds (VOCs), mainly classified as alcohols, aldehydes, ketones, and terpenes, provide characteristic aromas and influence the overall perception of flavor.
Modesta Abugu   +4 more
wiley   +1 more source

Structure and catalytic mechanism of glucosamine 6-phosphate deaminase from Escherichia coli at 2.1 Å resolution

open access: yes, 1995
Background: Glucosamine 6-phosphate deaminase from Escherichia coli is an allosteric hexameric enzyme which catalyzes the reversible conversion of D-glucosamine 6-phosphate into D-fructose 6-phosphate and ammonium ion and is activated by N-acetyl-D ...
Fontes, Marcos RM   +10 more
core   +1 more source

GnuR Represses the Expression of Glucose and Gluconate Catabolism in Pseudomonas putida KT2440

open access: yesMicrobial Biotechnology, Volume 17, Issue 11, November 2024.
In this work, we found that both glucose and gluconate can significantly induce the expression of catabolic enzymes of glucose and gluconate metabolism and the four related transcription factors including GnuR in Pseudomonas putida KT2440, a prime chassis for biotechnology.
Wenbo Chen   +6 more
wiley   +1 more source

Efficient Glucose Isomerization to Fructose using Photoregenerable MgSnO3 Catalyst with Cooperative Acid‐Base Sites

open access: yesChemSusChem, Volume 17, Issue 16, August 26, 2024.
A catalyst for the thermal catalytic reaction of glucose isomerization to fructose that can be regenerated through light illumination. Abstract The isomerization of glucose to fructose plays a crucial role in the food industry and the production of biomass‐derived chemicals in biorefineries.
Peixin Wang   +6 more
wiley   +1 more source

Development of a D-xylose fermenting and inhibitor tolerant industrial Saccharomyces cerevisiae strain with high performance in lignocellulose hydrolysates using metabolic and evolutionary engineering

open access: yes, 2013
Background: The production of bioethanol from lignocellulose hydrolysates requires a robust, D-xylose-fermenting and inhibitor-tolerant microorganism as catalyst.
Eckhard Boles   +29 more
core   +1 more source

A concise approach to the synthesis of all twelve 5-deoxyhexoses: D-tagatose-3-epimerase-a reagent that is both specific and general

open access: yes, 2009
2-Deoxy-d-glucitol and 2-deoxy-d-allitol, both prepared as crystalline polyols from d-erythronolactone, are oxidized by Gluconobacter thailandicus NBRC 3254 to 5-deoxy-d-threo-hexulose [5-deoxy-d-fructose = 5-deoxy-l-sorbose] and 5-deoxy-d-erythro ...
Wilson, FX   +10 more
core   +1 more source

Conception, synthesis and evaluation of phosphoanalogues inhibitors of aldose-ketose isomerases

open access: yes, 2013
Les aldose-cétose isomérases sont des enzymes catalysant l’isomérisation réversible entre un aldose et un cétose. Nous avons étudiés trois d’entre-elles : les phosphoribose isomérases (RPI), les phosphomannose isomérases (PMI) et les phosphoglucose ...
Courtiol-Legourd, Stéphanie
core  

Crystal structure of enzyme glucosamine-6-phosphate deaminase de E. coli K12 and its complexes with allosteric activator and inhibitor

open access: yes, 2009
A enzima Glucosamina-6-fosfato desaminase (GlcN6P desaminase) é envolvida na conversão reversível da D-glucosamina-6-fosfato (GlcN6P) em Fru6P e amônia, como parte do caminho metabólico de aminoaçúcares como fonte de energia celular. A enzima hexamérica (
Fontes, Marcos Roberto de Mattos
core   +1 more source

A Fast and Selective HPLC Determination of Ulose Formation during Enzymatic Isomerisation of Pentose Rich Syrups

open access: yes, 2010
International audienceXylose, and arabinose rich syrups obtained by hydrolysis of wheat bran represent a large potential as fermentation substrates in the production of second generation biofuels (1), providing that pentoses are isomerised into the 2 ...
Bliard, C., Duchiron, F, Givry, S
core   +1 more source

Colorimetric method to appropriately evaluate aldose isomerase activity for rare sugar production [PDF]

open access: yes
アルドースイソメラーゼは希少糖生産上有用であるため近年注目を集めているが、希少糖生産に向けて適切に酵素活性を測定するのは困難である。そのため、希少糖生産に必要な酵素量を正確に算出することができず、酵素の過不足が生じやすい。本稿では、ADA法がD‐フルクトース存在化ではほとんど呈色しないが、アルドースは鋭敏に検出・定量できるという報告をもとに、本法のアルドースイソメラーゼ活性測定への応用を試みた。結果として、ADA法はケトース存在下でもアルドースを定量することができ ...
Morimoto, Kenji   +8 more
core  

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