Results 21 to 30 of about 722 (122)

Hydraulically Fractured Natural-Gas Well Microbial Communities Contain Genomic Halogenation and Dehalogenation Potential

, 2019
Organohalides are routinely detected in fluid produced from hydraulically fractured oil and natural-gas wells, yet the origin and fate of these compounds remain largely unknown.
Kelly C. Wrighton (280140), Andrew J. Sumner (2057431), Morgan V. Evans (7386791), Desiree L. Plata (1437226), Jenna L. Luek (3963425), Paula J. Mouser (1798063), Rebecca A. Daly (246900)   +6 more
core   +4 more sources

Purification and Characterization of Hydrolytic Haloalkane Dehalogenase from Xanthobacter autotrophicus GJ10 [PDF]

, 1985
A new enzyme, haloalkane dehalogenase, was isolated from the 1,2-dichloroethane-utilizing bacterium Xanthobacter autotrophicus GJ10. The purified enzyme catalyzed the hydrolytic dehalogenation of n-halogenated C1 to C4 alkanes, including chlorinated ...
Witholt, Bernard, Janssen, Dick B., Keuning, Sytze   +2 more
core   +3 more sources

Microbial detoxification of 2,4,6-tribromophenol via a novel process with consecutive oxidative and hydrolytic debromination: Biochemical, genetic and evolutionary characterization

, 2022
As a typical brominated flame retardants (BFRs), 2,4,6-tribromophenol (TBP) has serious hazard to the environmental health and its environmental fate has attracted considerable attention.
Hu, Xiaoke, Min, Jun, Li, Yan, Fang, Suyun, Xu, Lingxue, Lv, Xin, Peng, Jian   +6 more
core   +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

Molecules, 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, Wanda Mączka, Małgorzata Grabarczyk, Kenji Sugimoto, Yuji Matsuya, Antoni Szumny, Mirosław Anioł   +6 more
doaj   +1 more source

Coupled oxidation–reduction of butanol–hexanal by resting Rhodococcus erythropolis NCIMB 13064 cells in liquid and gas phases [PDF]

, 2008
Rhodococcus erythropolis is a promising Gram-positive bacterium capable of numerous bioconversions including those involving alcohol dehydrogenases (ADHs).
Rosenfeld, Eric, Maugard, T., Marchand, Pierre, Marchand, P., Erable, Benjamin, Rosenfeld, E., Maugard, Thierry, Goubet, I., Goubet, Isabelle, Lamare, Sylvain, Lamare, S.   +10 more
core   +1 more source

Biotransformation of Bicyclic Halolactones with a Methyl Group in the Cyclohexane Ring into Hydroxylactones and Their Biological Activity

Molecules, 2016
The aim of this study was the chemical synthesis of a series of halo- and unsaturated lactones, as well as their microbial transformation products. Finally some of their biological activities were assessed. Three bicyclic halolactones with a methyl group
Katarzyna Wińska, Małgorzata Grabarczyk, Wanda Mączka, Barbara Żarowska, Gabriela Maciejewska, Katarzyna Dancewicz, Beata Gabryś, Antoni Szumny, Mirosław Anioł   +8 more
doaj   +1 more source

Biotransformation of Lactones with Methylcyclohexane Ring and Their Biological Activity

Applied 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, Małgorzata Grabarczyk, Wanda Mączka, Barbara Żarowska, Gabriela Maciejewska, Katarzyna Dancewicz, Beata Gabryś, Mirosław Anioł   +7 more
doaj   +1 more source

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

Molecules, 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, Katarzyna Wińska, Wanda Mączka, Anna K. Żołnierczyk, Barbara Żarowska, Mirosław Anioł   +5 more
doaj   +1 more source

Regio- and Enantioselective Sequential Dehalogenation of rac-1,3-Dibromobutane by Haloalkane Dehalogenase LinB [PDF]

, 2016
The hydrolytic dehalogenation of rac-1,3-dibromobutane catalyzed by the haloalkane dehalogenase LinB from Sphingobium japonicum UT26 proceeds in a sequential fashion: initial formation of intermediate haloalcohols followed by a second hydrolytic step to ...
Zbyněk Prokop, Johannes Gross, Hall, Melanie, Gross, Johannes, Dick Janssen, Kurt Faber, Prokop, Zbynek, Faber, Kurt, Janssen, Dick, Mélanie Hall   +9 more
core   +1 more source

Supramolecular Gels as Active Tools for Reaction Engineering

Angewandte Chemie, Volume 137, Issue 24, June 10, 2025.
The unique combination of environments within gels, self‐assembled from low‐molecular‐weight gelators, offers the ability to control reactivity in new ways, achieving unique reaction outcomes, leading to the emerging concept of supramolecular gels as nanoreactors. Smart chemical engineering methods enable the use of such gels to fabricate materials and
David K. Smith
wiley   +2 more sources