Results 31 to 40 of about 13,012 (246)

Bacterial epimerization as a route for deoxynivalenol detoxification: the influence of growth and environmental conditions.

open access: yesFrontiers in Microbiology, 2016
Deoxynivalenol (DON) is a toxic secondary metabolite produced by several Fusarium species that infest wheat and corn. Food and feed contaminated with DON pose a health risk to both humans and livestock and form a major barrier for international trade ...
Jian Wei eHe   +6 more
doaj   +1 more source

Epimerization of total, free, and bounded isoleucine in fossil test of the Orbulina universa isolated from sediment core GIK13519-2, Sierra Leone Rise (Table 2) [PDF]

open access: yes, 1984
Epimerization of total, free, and bounded isoleucine in fossil test of the Orbulina universa isolated from sediment core GIK13519-2, Sierra Leone Rise (Table ...
Peter J Müller (6959537)   +1 more
core   +1 more source

The enzymatic epimerization of deoxynivalenol by Devosia mutans proceeds through the formation of 3-keto-DON intermediate

open access: yesScientific Reports, 2017
The enzymatic detoxification of deoxynivalenol (DON) is a promising mitigation strategy for addressing this mycotoxin contamination of cereal grains. A recently described bacterium, Devosia mutans 17-2-E-8, capable of transforming DON into its non-toxic ...
Yousef I. Hassan   +5 more
doaj   +1 more source

Crystal structures of the two epimers from the unusual thermal C6-epimerization of 5-oxo-1,2,3,5,5a,6,7,9b-octahydro-7,9a-epoxypyrrolo[2,1-a]isoindole-6-carboxylic acid, 5a(RS),6(SR),7(RS),9a(SR),9b(SR) and 5a(RS),6(RS),7(RS),9a(SR),9b(SR)

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2016
The isomeric title compounds, C12H13NO4 (Ia) and C12H13NO4 (IIa), the products of an usual thermal C6-epimerization of 5-oxo-1,2,3,5,5a,6,7,9b-octahydro-7,9a-epoxypyrrolo[2,1-a]isoindole-6-carboxylic acid, represent the two different diastereomers and ...
Dmitry S. Poplevin   +4 more
doaj   +1 more source

Metabolism of Cholesterol and Bile Acids by the Gut Microbiota

open access: yesPathogens, 2013
The human gastro-intestinal tract hosts a complex and diverse microbial community, whose collective genetic coding capacity vastly exceeds that of the human genome. As a consequence, the gut microbiota produces metabolites from a large range of molecules
Philippe Gérard
doaj   +1 more source

d-Allulose 3-epimerase of Bacillus sp. origin manifests profuse heat‐stability and noteworthy potential of d-fructose epimerization

open access: yesMicrobial Cell Factories, 2021
Background d-Allulose is an ultra-low calorie sugar of multifarious health benefits, including anti-diabetic and anti-obesity potential. d-Allulose 3-epimerase family enzymes catalyze biosynthesis of d-allulose via epimerization of d-fructose.
Satya Narayan Patel   +2 more
doaj   +1 more source

GDP-Mannose 3,5-Epimerase: A View on Structure, Mechanism, and Industrial Potential

open access: yesFrontiers in Molecular Biosciences, 2022
GDP-mannose 3,5-epimerase (GM35E, GME) belongs to the short-chain dehydrogenase/reductase (SDR) protein superfamily and catalyses the conversion of GDP-d-mannose towards GDP-l-galactose.
Koen Beerens   +2 more
doaj   +1 more source

Highly Enantio‐ and Diastereoselective Synthesis of Tetrahydrofuran Frameworks via Chiral Lewis Acid‐Catalyzed Formal [3+2] Cycloaddition of Allylsilanes

open access: yesAngewandte Chemie, EarlyView.
The first catalytic asymmetric formal [3+2] cycloaddition of allylsilanes delivers cis‐2,5‐disubstituted tetrahydrofuran‐3‐ones that serve as versatile intermediates for the synthesis of diverse bioactive scaffolds. ABSTRACT A formal [3+2] cycloaddition via cyclization/1,2‐hydride shift initiated by nucleophilic attack of allylsilanes has been ...
Hosung Lee   +5 more
wiley   +2 more sources

Mechanistic Probes for the Epimerization Domain of Nonribosomal Peptide Synthetases [PDF]

open access: yes, 2019
Nonribosomal peptide synthetases (NRPSs) are responsible for the synthesis of a variety of bioactive natural products with clinical and economic significance. Interestingly, these large multimodular enzyme machineries incorporate nonproteinogenic d-amino
McCammon, J Andrew   +6 more
core   +1 more source

Selective Sequential Depolymerization of Mixed Plastics Mediated by Photothermal Conversion

open access: yesAngewandte Chemie, EarlyView.
This work provides a selective sequential depolymerization strategy for mixed plastic waste. The method enables depolymerization of poly(L‐lactide), polystyrene, and poly(ethylene terephthalate), including their post‐consumer plastics. Without presorting, monomer separation is achieved by leveraging the distinct chemical reactivities of each polymer in
Yoon‐Jung Jang   +4 more
wiley   +2 more sources

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