Results 21 to 30 of about 36,905 (129)

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

Water availability affects extracellular hydrolytic enzyme production by Aspergillus flavus and Aspergillus parasiticus [PDF]

, 2009
The objectives of this study were to examine the effect of different water activities (a(w); 0.99, 0.96 and 0.94) and time (up to 120 h) on quantitative and specific enzyme production during germination and initial growth of Aspergillus flavus and A ...
Shah, Hamid Ullah, N. Magan, Magan, Naresh, S. Alam, Alam, Sahib, H. Shah   +5 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

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

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

Carbon isotope fractionation during aerobic biodegradation of trichloroethene by Burkholderia cepacia G4: a tool to map degradation mechanisms [PDF]

, 2002
The strain Burkholderia cepacia G4 aerobically mineralized trichloroethene (TCE) to CO2 over a time period of similar to20 h. Three biodegradation experiments were conducted with different bacterial optical densities at 540 nm (OD(540)s) in order to test
Schuth, Christoph, Downey, Angela, Larkin, Mike, Bill, Markus, Schuth, C., Bill, M., Markus Bill, Slater, G., Kalin, Robert M., Kalin, R.M., Barth, JAC, Angela Downey, Robert M. Kalin, Larkin, Michael, Slater, Greg F., Christoph Schüth, Larkin, M., Mike Larkin, Kalin, R., Johannes A. C. Barth, Greg Slater, Downey, A., Kalin, Bob, Slater, Greg, Barth, J.A.C., Barth, Johannes A. C.   +25 more
core   +1 more source

Dehalogenases: From Improved Performance to Potential Microbial Dehalogenation Applications

Molecules, 2018
The variety of halogenated substances and their derivatives widely used as pesticides, herbicides and other industrial products is of great concern due to the hazardous nature of these compounds owing to their toxicity, and persistent environmental ...
Thiau-Fu Ang, Jonathan Maiangwa, Abu Bakar Salleh, Yahaya M. Normi, Thean Chor Leow   +4 more
doaj   +1 more source

Reversible Dehalogenation in On‐Surface Aryl–Aryl Coupling [PDF]

, 2020
In the emerging field of on-surface synthesis, dehalogenative aryl-aryl coupling is unarguably the most prominent tool for the fabrication of covalently bonded carbon-based nanomaterials.
José I. Urgel, Qiang Sun, Roman Fasel, Marco Di Giovannantonio, Gabriela Borin Barin, Widmer, Roland, Sun, Qiang, Stolz, Samuel, Urgel, José I., Max Bommert, Fasel, Roman, Amogh Kinikar, Di Giovannantonio, Marco, Kinikar, Amogh, Samuel Stolz, Roland Widmer, Borin Barin, Gabriela, Bommert, Max   +17 more
core   +3 more sources

Mechanisms of bacterially catalyzed reductive dehalogenation.

, 1992
Nine bacteria were tested for the ability to dehalogenate tetrachloromethane (CT), tetrachloroethene (PCE), and 1,1,1-trichloroethane (TCA) under anaerobic conditions. Three bacteria were able to reductively dehalogenate CT.
Picardal, Flynn William
core   +6 more sources