Results 61 to 70 of about 11,278 (243)

Asymmetric synthesis of a high added value chiral amine using immobilized ω-transaminases

open access: yesBeilstein Journal of Organic Chemistry, 2019
Chiral N-heterocyclic molecules and in particular compounds with an amino functional group such as 3-aminopiperidine are valuable intermediates for the production of a large number of bioactive compounds with pharmacological properties.
Antonella Petri   +2 more
doaj   +1 more source

Nucleotide sugar biosynthesis occurs in the glycosomes of procyclic and bloodstream form Trypanosoma brucei.

open access: yesPLoS Neglected Tropical Diseases, 2021
In Trypanosoma brucei, there are fourteen enzymatic biotransformations that collectively convert glucose into five essential nucleotide sugars: UDP-Glc, UDP-Gal, UDP-GlcNAc, GDP-Man and GDP-Fuc. These biotransformations are catalyzed by thirteen discrete
Maria Lucia Sampaio Guther   +4 more
doaj   +1 more source

Are emerging deep eutectic solvents (DES) relevant for lipase-catalyzed lipophilizations? [PDF]

open access: yes, 2015
With the recent interest on green chemistry, the scientists have focused on developing new and more efficiient solvents to carry out enzymatic-catalyzed reactions with emphasis on reduced costs, risks and toxicity while improving biodegradability.
Durand, Erwann   +2 more
core   +2 more sources

Lactones with Methylcyclohexane Systems Obtained by Chemical and Microbiological Methods and Their Antimicrobial Activity

open access: yesMolecules, 2015
Eight new lactones (δ-chloro-, δ-bromo- and δ-iodo-γ-lactones), each with a methylcyclohexane ring, were obtained by chemical means from (4-methylcyclohex-2-en-1-yl) acetic acid or (6-methylcyclohex-2-en-1-yl) acetic acid.
Małgorzata Grabarczyk   +5 more
doaj   +1 more source

Stereoelectronic effects in the reaction of aromatic substrates catalysed by Halomonas elongata transaminase and its mutants [PDF]

open access: yes, 2016
A transaminase from Halomonas elongata and four mutants generated by an in silico-based design, were recombinantly produced in E. coli, purified and applied to the amination of mono-substituted aromatic carbonyl-derivatives.
Arnold   +25 more
core   +2 more sources

Glycosylation of Methoxylated Flavonoids in the Cultures of Isaria fumosorosea KCH J2

open access: yesMolecules, 2018
Flavonoids are widely described plant secondary metabolites with high and diverse pro-health properties. In nature, they occur mostly in the form of glycosides.
Monika Dymarska   +2 more
doaj   +1 more source

Lipase-catalyzed kinetic resolution of 1-(2-hydroxycyclohexyl)indoles in batch and continuous-flow systems [PDF]

open access: yes, 2014
The lipase catalyzed kinetic resolution of three trans-1-(2-hydroxycyclohexyl)-indoles in both batch and continuous flow systems is reported. Ring opening of cyclohexene oxide by the corresponding indole followed by enzymatic acylation with vinyl acetate
Boros, Zoltán   +4 more
core   +1 more source

Whole cells of recombinant CYP153A6-E. coli as biocatalyst for regioselective hydroxylation of monoterpenes

open access: yesAMB Express, 2022
Keypoints Different monoterpenes can be regioselectively hydroxylated by CYP153A6 monooxygenase The biotransformation with whole cells is complementary to chemical oxyfunctionalization Fed-batch biotransformations have been applied for preparative ...
Pietro Cannazza   +11 more
doaj   +1 more source

Reductive Biotransformation of Ethyl Acetoacetate: A Comparative Studies using Free and Immobilized Whole Yeast Cells [PDF]

open access: yes, 2008
Bioreduction of ethyl acetoacetate with free and immobilized yeast whole cell was achieved by using water and sucrose combination. After detachment from immobilized beads under basic condition, the corresponding ethyl(S)-(+)-3-hydroxybutanoate was ...
Amit R. Kumbhar   +3 more
core   +1 more source

Microbial mediated arsenic biotransformation in wetlands [PDF]

open access: yes, 2016
Arsenic (As) is a pervasive environmental toxin and carcinogenic metalloid. It ranks at the top of the US priority List of Hazardous Substances and causes worldwide human health problems. Wetlands, including natural and artificial ecosystems (i.e.
Luo, Jinming   +3 more
core   +1 more source

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