Results 11 to 20 of about 111,305 (353)

A New Stilbene Glucoside from Biotransformation-Guided Purification of Chinese Herb Ha-Soo-Oh

open access: yesPlants, 2022
Ha-Soo-Oh is a traditional Chinese medicine prepared from the roots of Polygonum multiflorum Thunb. The herb extract has been widely used in Asian countries as a tonic agent and nutritional supplement for centuries. To identify new bioactive compounds in
Jiumn-Yih Wu   +4 more
doaj   +1 more source

Conversion of Unsaturated Short- to Medium-Chain Fatty Acids by Unspecific Peroxygenases (UPOs)

open access: yesApplied Microbiology, 2023
Eighteen short- to medium-chain monounsaturated fatty acids were screened for hydroxylation and epoxidation using eleven different peroxygenase preparations.
Alexander Karich   +5 more
doaj   +1 more source

Designed whole-cell-catalysis-assisted synthesis of 9,11-secosterols

open access: yesBeilstein Journal of Organic Chemistry, 2021
A method for the synthesis of 9,11-secosteroids starting from the natural corticosteroid cortisol is described. There are two key steps in this approach, combining chemistry and synthetic biology.
Marek Kõllo   +7 more
doaj   +1 more source

Effect of Modification on the Fluid Diffusion Coefficient in Silica Nanochannels

open access: yesMolecules, 2021
The diffusion behavior of fluid water in nanochannels with hydroxylation of silica gel and silanization of different modified chain lengths was simulated by the equilibrium molecular dynamics method.
Gengbiao Chen, Zhiwen Liu
doaj   +1 more source

Efficient hydroxylation of flavonoids by using whole-cell P450 sca-2 biocatalyst in Escherichia coli

open access: yesFrontiers in Bioengineering and Biotechnology, 2023
The hydroxylation is an important way to generate the functionalized derivatives of flavonoids. However, the efficient hydroxylation of flavonoids by bacterial P450 enzymes is rarely reported.
Baodong Hu   +24 more
doaj   +1 more source

Bacterial cytochrome P450-catalyzed regio- and stereoselective steroid hydroxylation enabled by directed evolution and rational design

open access: yesBioresources and Bioprocessing, 2020
Steroids are the most widely marketed products by the pharmaceutical industry after antibiotics. Steroid hydroxylation is one of the most important functionalizations because their derivatives enable a higher biological activity compared to their less ...
Xiaodong Zhang   +6 more
semanticscholar   +1 more source

Hydroxylation Kinetics of Epoxidized Tung Oil Using Methanol as Nucleophilic Agent

open access: yesInternational Journal of Technology, 2023
The synthesis of vegetable oil-based polyols has been carried out through the epoxidation-hydroxylation process. However, Tung oil has never been explored in the process, even though Tung oil has a high double bond.
Eni Budiyati   +3 more
doaj   +1 more source

Post-translational hydroxylation by 2OG/Fe(II)-dependent oxygenases as a novel regulatory mechanism in bacteria

open access: yesFrontiers in Microbiology, 2015
Protein hydroxylation has been well-studied in eukaryotic systems. The structural importance of hydroxylation of specific proline and lysine residues during collagen biosynthesis is well established while, recently, key roles for post-translational ...
Laura M van Staalduinen, Zongchao eJia
doaj   +1 more source

Polimerik Linoleik Asit İçeren Graft Kopolimerlerin Atom Transfer Radikal Polimerizasyonu ve Kondenzasyon Reaksiyonu ile Sentezi ve Karakterizasyonu

open access: yesDüzce Üniversitesi Bilim ve Teknoloji Dergisi, 2021
Bu çalışmada, NPLina1-g-PCL-g-PSt üç bloklu graft kopolimerler Atom Transfer Radikal Polimerizasyonu (ATRP) ve kondenzasyon reaksiyonu kullanılarak bir basamakta tek kap (one-pot) yöntemiyle sentezlendi.
Sema Allı
doaj   +1 more source

Prediction and analysis of protein hydroxyproline and hydroxylysine.

open access: yesPLoS ONE, 2010
BackgroundHydroxylation is an important post-translational modification and closely related to various diseases. Besides the biotechnology experiments, in silico prediction methods are alternative ways to identify the potential hydroxylation sites ...
Le-Le Hu   +5 more
doaj   +1 more source

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