Results 41 to 50 of about 29,402,251 (91)

Update: Enzymatische Synthese für industrielle Anwendungen

open access: yesAngewandte Chemie, Volume 137, Issue 27, July 1, 2025.
Die Biokatalyse hat sich zu einer nachhaltigen und wettbewerbsfähigen Alternative zur herkömmlichen chemischen Synthese entwickelt und ermöglicht die enzymbasierte Herstellung nicht nur von chemischen Grundstoffen, sondern auch von (nicht natürlichen) Aminosäuren, (seltenen) Zuckern und synthetischen Nukleotiden.
Thomas Bayer   +4 more
wiley   +1 more source

Update of the list of qualified presumption of safety (QPS) recommended microbiological agents intentionally added to food or feed as notified to EFSA 21: Suitability of taxonomic units notified to EFSA until September 2024

open access: yesEFSA Journal, Volume 23, Issue 1, January 2025.
Abstract The qualified presumption of safety (QPS) process was developed to provide a safety assessment approach for microorganisms intended for use in food or feed chains. In the period covered by this Statement, no new information was found that would change the status of previously recommended QPS taxonomic units (TUs).
EFSA Panel on Biological Hazards (BIOHAZ)   +28 more
wiley   +1 more source

Preparation of a Flower-Like Immobilized D-Psicose 3-Epimerase with Enhanced Catalytic Performance

open access: yes, 2018
In this present study, we proposed a smart biomineralization method for creating hybrid organic–inorganic nanoflowers using a Co2+-dependent enzyme (D-psicose 3-epimerase; DPEase) as the organic component and cobalt phosphate as the inorganic ...
Zhi Wang   +6 more
core   +1 more source

Study on the fusion expression of L-rhamnose-isomerase and D-psicose-3-epimerase [PDF]

open access: yes
D-Allose, a rare cis-aldohexose with extensive physiological functions, has significant applications in food, healthcare, and pharmaceutical fields.
Li, Xiao
core   +1 more source

Roles of Ile66 and Ala107 of d-psicose 3-epimerase from Agrobacterium tumefaciens in binding O6 of its substrate, d-fructose

open access: yes, 2010
Using site-directed mutagenesis, we investigated the roles of Ile66 and Ala107 of d-psicose 3-epimerase from Agrobacterium tumefaciens in binding O6 of its true substrate, D-fructose.
B C Lim   +5 more
core   +1 more source

Sequential whole cell conversion process for production of D-psicose and D- mannitol from D-fructose [PDF]

open access: yes, 2018
Rare sugars, which exist only limited quantities naturally, have received considerable attention because of its various specific nutritional and biological functions.
Kim, Jae-Eun   +3 more
core   +1 more source

Enzymatic Conversion of D-Psicose From D-Glucose by the Co-Expression of D-Psicose 3-Epimerase and Glucose Isomerase

open access: yes, 2020
Escherichia coli was genetically modified for the production of D-psicose. A modified plasmid containing an extra copy of gene expression elements, including Ribosomal Binding Site (RBS), T7 promoter, multiple restriction enzyme cloning site, was ...
Chen, Xiaoyan
core  

Conversion of L-rhamnose into ten of the sixteen 1-and 6-deoxyketohexoses in water with three reagents: D-tagatose-3-epimerase equilibrates C3 epimers of deoxyketoses

open access: yes, 2010
The efficient isomerization of l-rhamnose [the only cheaply available deoxy hexose] to 1-deoxy-l-psicose, 1-deoxy-d-psicose, 1-deoxy-l-fructose, 1-deoxy-d-fructose, 1-deoxy-l-tagatose, 6-deoxy-l-psicose, 6-deoxy-d-psicose, 6-deoxy-l-fructose, 6-deoxy-d ...
Fleet, George   +8 more
core   +1 more source

UDP-N-Acetylglucosamine 4-Epimerase Activity Indicates the Presence of N-Acetylgalactosamine in Exopolysaccharides of Streptococcus thermophilus Strains [PDF]

open access: yes, 2001
The monomer composition of the exopolysaccharides (EPS) produced by Streptococcus thermophilus LY03 and S. thermophilus Sfi20 were evaluated by high-pressure liquid chromatography with amperometric detection and nuclear magnetic resonance spectroscopy ...
Laws, Andrew P.   +3 more
core   +1 more source

Produksi dan Imobilisasi Enzim D-psicose 3 Epimerase (DPEase) dari E.coli BL21 (DE3) dpe-pET 21b dengan Alginate Gel

open access: yes, 2020
D-psicose-3-epimerase is an enzyme which converts fructose to rare sugars, D-psicose with beneficial health properties to diabetic and obese patients.
Harahap, Nirwana Fazri
core   +1 more source

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