Results 11 to 20 of about 580 (89)

Continuous Spectrophotometric Assay for Defluorinase and Dechlorinase Activities With α-Halocarboxylic Acids. [PDF]

open access: yesMicrob Biotechnol
Microbial hydrolytic defluorinases and dechlorinases assayed by coupling the reaction product to NAD‐linked dehydrogenases will facilitate screening for and characterising new and known enzymes. ABSTRACT Many environmental pollutants have a fluorine or chlorine atom on a carbon atom adjacent to a carboxylic acid.
Ronnander M   +6 more
europepmc   +2 more sources

Combination of a UPO-Based Epoxidation With a Subsequent Ring-Opening Reaction for the Synthesis of Amino Alcohols. [PDF]

open access: yesChembiochem
The synthesis of aromatic amino alcohols via a combination of an unspecific peroxygenase‐catalysed reaction, oxyfunctionalization, and addition of selected nucleophiles and electrophiles in a highly atom‐efficient manner was investigated. This study presents the design to aim for an atom‐efficient chemo‐enzymatic synthesis route towards aromatic amino ...
Last S   +3 more
europepmc   +2 more sources

Engineering Enzymes for Environmental Sustainability

open access: yesAngewandte Chemie, Volume 135, Issue 52, December 21, 2023., 2023
This review highlights how engineered enzymes have been developed and implemented to help address environmental challenges. Topics include the use of engineered enzymes for improving carbon capture and utilisation, bioremediation, plastic deconstruction, and renewable feedstock generation.
Emily Radley   +5 more
wiley   +2 more sources

Designing Enzymatic Reactivity with an Expanded Palette. [PDF]

open access: yesChembiochem
Innovation in biocatalysis is rapidly increasingly the diversity of catalytic reactivity that can be mediated by enzymes, addressing a key bottleneck for their widespread adoption in industrial chemical synthesis. A key approach to this is building enzymes with unnatural catalytic components that provide an expanded palette with new possibilities for ...
Leveson-Gower RB.
europepmc   +2 more sources

Hydrolytic dehalogenation of the chlorothalonil isomer o-tetrachlorophthalonitrile by Pseudochrobactrum sp. BSQ-1 [PDF]

open access: yesInternational Biodeterioration & Biodegradation, 2016
Abstract Microbial dehalogenation plays key roles in the biodegradation and detoxification of halogenated aromatics. Although the hydrolytic dehalogenation of halogenated aliphatic hydrocarbons and carboxylic acids has been extensively studied, there are few reports on the hydrolytic dehalogenation of halogenated aromatics. In this study, the aerobic
Xiaomei Liu   +7 more
openaire   +1 more source

Evolutionary obstacles and not C-F bond strength make PFAS persistent. [PDF]

open access: yesMicrob Biotechnol
C–F bonds can be cleaved by microbes. However, evolution must overcome many obstacles to biodegrade PFAS. Abstract The fate of organic matter in the environment, including anthropogenic chemicals, is largely predicated on the enzymatic capabilities of microorganisms.
Wackett LP.
europepmc   +2 more sources

Reductive Activation of Aryl Chlorides by Tuning the Radical Cation Properties of N‐Phenylphenothiazines as Organophotoredox Catalysts

open access: yesChemistry – A European Journal, Volume 29, Issue 66, November 24, 2023., 2023
Two photons are better than one: Intramolecular charge transfer in the intermediate radical cation of the N‐phenylphenothiazines as photocatalysts improves the yields for borylation and phosphonylation of aryl chlorides. Abstract Aryl chlorides as substrates for arylations present a particular challenge for photoredox catalytic activation due to their ...
Fabian Weick   +4 more
wiley   +1 more source

A Macrosphelide as the Unexpected Product of a Pleurotus ostreatus Strain-Mediated Biotransformation of Halolactones Containing the gem-Dimethylcyclohexane Ring. Part 1

open access: yesMolecules, 2016
The aim of the study was to obtain new compounds during biotransformation of two halocompounds, the δ-bromo and δ-iodo-γ-bicyclolactones 1 and 2. Unexpectedly Pleurotus ostreatus produced together with the hydroxylactone, 2-hydroxy-4,4-dimethyl-9 ...
Katarzyna Wińska   +6 more
doaj   +1 more source

Hydrolytic dehalogenation of 4-chlorobenzoic acid by an Acinetobacter sp.

open access: yesThe Journal of General and Applied Microbiology, 1997
Acinetobacter sp. strain ST-1, isolated from garden soil, can mineralize 4-chlorobenzoic acid (4-CBA). The bacterium degrades 4-CBA, starting with dehalogenation to yield 4-hydroxybenzoic acid (4-HBA) under both aerobic and anaerobic conditions, suggesting that the dehalogenating enzyme in the strain is not an oxygenase; the enzyme may catalyze halide ...
Kikuo, Kobayashi   +2 more
openaire   +3 more sources

Biotransformation of Lactones with Methylcyclohexane Ring and Their Biological Activity

open access: yesApplied Sciences, 2016
The aim of the study was to obtain biological active compounds during biotransformation. Three bicyclic halolactones with methylcyclohexane ring (2-chloro-4-methyl-9-oxabicyclo-[4.3.0]nonan-8-one, 2-bromo-4-methyl-9-oxabicyclo[4.3.0]nona- -8-one and 2 ...
Katarzyna Wińska   +7 more
doaj   +1 more source

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