Results 21 to 30 of about 138 (123)

A novel strategy for D-psicose and lipase co-production using a co-culture system of engineered Bacillus subtilis and Escherichia coli and bioprocess analysis using metabolomics

Bioresources and Bioprocessing, 2021
Highlights Co-cultivation was firstly carried out for the co-production of D-psicose and lipase. The carbon source glucose and fructose were fully utilized during co-culture.
Jun Zhang, Wen Luo, Zhiyuan Wang, Xiaoyan Chen, Pengmei Lv, Jingliang Xu   +5 more
doaj   +1 more source

Characterization of a novel metal-dependent D-psicose 3-epimerase from Clostridium scindens 35704. [PDF]

PLoS ONE, 2013
The noncharacterized protein CLOSCI_02528 from Clostridium scindens ATCC 35704 was characterized as D-psicose 3-epimerase. The enzyme showed maximum activity at pH 7.5 and 60°C.
Wenli Zhang, Dan Fang, Qingchao Xing, Leon Zhou, Bo Jiang, Wanmeng Mu   +5 more
doaj   +1 more source

Crystal structure of β-d,l-psicose

Acta Crystallographica Section E: Crystallographic Communications, 2015
The title compound, C6H12O6, a C-3 position epimer of fructose, was crystallized from an aqueous solution of equimolar mixture of d- and l-psicose (1,3,4,5,6-pentahydroxyhexan-2-one, ribo-2-hexulose, allulose), and it was confirmed that d-psicose (or l ...
Tomohiko Ishii, Genta Sakane, Akihide Yoshihara, Kazuhiro Fukada, Tatsuya Senoo   +4 more
doaj   +1 more source

Safety evaluation of the food enzyme d‐psicose 3‐epimerase from the genetically modified Corynebacterium glutamicum strain FIS002

EFSA Journal, 2021
This assessment addresses a food enzyme preparation consisting of the immobilised intact but non‐viable cells of the genetically modified Corynebacterium glutamicum strain FIS002 by CJ‐Tereos Sweeteners Europe SAS. The production strain produces the food
EFSA Panel on Food Contact Materials, Enzymes and Processing Aids (CEP), Claude Lambré, José Manuel Barat Baviera, Claudia Bolognesi, Pier Sandro Cocconcelli, Riccardo Crebelli, David Michael Gott, Konrad Grob, Evgenia Lampi, Marcel Mengelers, Alicja Mortensen, Gilles Rivière, Inger‐Lise Steffensen, Christina Tlustos, Henk Van Loveren, Laurence Vernis, Holger Zorn, Boet Glandorf, Lieve Herman, Yi Liu, Joaquim Maia, Elsa Nielsen, Andrew Chesson   +22 more
doaj   +1 more source

Safety evaluation of the food enzyme d‐psicose 3‐epimerase from the genetically modified Escherichia coli strain K‐12 W3110 (pWKLP)

EFSA Journal, 2021
The food enzyme d‐psicose 3‐epimerase (EC 5.1.3.30) is produced with the genetically modified Escherichia coli strain K‐12 W3110 (pWKLP) by Matsutani Chemical Industry Co., Ltd.
EFSA Panel on Food Contact Materials, Enzymes and Processing Aids (CEP), Claude Lambré, José Manuel Barat Baviera, Claudia Bolognesi, Pier Sandro Cocconcelli, Riccardo Crebelli, David Michael Gott, Konrad Grob, Evgenia Lampi, Marcel Mengelers, Alicja Mortensen, Gilles Rivière, Inger‐Lise Steffensen, Christina Tlustos, Henk van Loveren, Laurence Vernis, Holger Zorn, Boet Glandorf, Lieve Herman, Magdalena Andryszkiewicz, Ana Gomes, Yi Liu, Joaquim Maia, Sandra Rainieri, Andrew Chesson   +24 more
doaj   +1 more source

Reaction Engineering and Comparison of Electroenzymatic and Enzymatic ATP Regeneration Systems

ChemElectroChem, Volume 10, Issue 22, November 14, 2023., 2023
An electrochemically coupled ATP regeneration by pyruvate oxidase and acetate kinase for the phosphorylation of mevalonate was established and expanded by a polyphosphate kinase. The reaction was characterized and compared with other ATP regenerating systems in terms of the phosphate donor properties and biocatalytic metrics.
Regine Siedentop, Tobias Prenzel, Siegfried R. Waldvogel, Katrin Rosenthal, Stephan Lütz   +4 more
wiley   +1 more source

Gene Cloning, Structural Prediction, and Prokaryotic Expression of Agrobacterium tumefaciens D-Psicose-3-Epimerase(根癌农杆菌D-阿洛酮糖-3-差向异构酶基因克隆、结构预测及原核表达) [PDF]

Shipin kexue jishu xuebao, 2019
D-Psicose can be converted from D-fructose catalyzed by D-psicose-3-epimerase. To realize the heterologous expression of D-psicose-3-epimerase (DPEase), the primers were designed to clone and isolate the gene.
ZHU Xingxing(朱星星), YANG Peizhou(杨培周), DU Mingrui(杜明睿), WU Yun(吴芸), JIANG Shaotong(姜绍通)   +4 more
doaj   +1 more source

D-Allulose (D-Psicose) Biotransformation From Allitol by a Newly Found NAD(P)-Dependent Alcohol Dehydrogenase From Gluconobacter frateurii NBRC 3264 and the Enzyme Characterization

Frontiers in Microbiology, 2022
The NAD(P)-dependent alcohol dehydrogenase (ADH) gene was cloned from Gluconobacter frateurii NBRC 3264 and expressed in Escherichia coli BL21 star (DE3). The expressed enzyme was purified and the characteristics were investigated.
Xin Wen, Huibin Lin, Yuhang Ning, Guangwen Liu, Yilin Ren, Can Li, Chengjia Zhang, Jianqun Lin, Xin Song, Jianqiang Lin   +9 more
doaj   +1 more source

Improved Performance of D-Psicose 3-Epimerase by Immobilisation on Amino-Epoxide Support with Intense Multipoint Attachment

Foods, 2021
D-allulose is an epimer of D-fructose at the C-3 position. With similar sweetness to sucrose and a low-calorie profile, D-allulose has been considered a promising functional sweetener.
Yifan Bu, Tao Zhang, Bo Jiang, Jingjing Chen   +3 more
doaj   +1 more source

Biochemical analysis and the preliminary crystallographic characterization of d-tagatose 3-epimerase from Rhodobacter sphaeroides

Microbial Cell Factories, 2017
Background d-Tagatose 3-epimerase epimerizes d-fructose to yield d-psicose, which is a rare sugar that exists in small quantities in nature and is difficult to synthesize chemically.
Zhengliang Qi, Zhangliang Zhu, Jian-Wen Wang, Songtao Li, Qianqian Guo, Panpan Xu, Fuping Lu, Hui-Min Qin   +7 more
doaj   +1 more source