These enzymes have been receiving widespread attention because of their ability to degrade environmentally persistent xenobiotics as well as endocrine-disrupting chemicals like pentachlorophenol, polychlorinated biphenyls, and dioxins (Jeon et al. (springeropen.com)
Concentrations1
Its reaction rate is associated with the concentrations of pollutants, ozone and ·OH, as well as the direct reaction constant of ozone and indirect reaction constant of ·OH. (studyres.com)
Enzymatic reaction1
An enzymatic reaction with ß-glucosidase was also used to confirm the presence of glycosyl-conjugates. (bvsalud.org)
Pathway2
Scientists don't yet know where those pieces of the pentachlorophenol pathway came from, or what exactly they were doing in older microbes. (spectrevision.net)
The classic pathway is the predominant pathway, with the first and rate-limiting reaction catalyzed by a cytochrome P450 enzyme, cholesterol 7 α -hydroxylase (CYP7A1). (aspetjournals.org)
Soil4
To determine Adsorption coefficient (KOC) on soil and on sewage sludge of the test chemical Reaction mass of Methylium, tris[4-(diethylamino)phenyl]- & acetate using HPLC. (europa.eu)
The adsorption coefficient Koc in soil and in sewage sludge of test chemical Reaction mass of Methylium, tris[4-(diethylamino)phenyl]- & acetate was determined by the Reverse Phase High Performance Liquid Chromatographic method according to OECD Guideline No. 121 for testing of Chemicals. (europa.eu)
Last year, for example, researchers published the genome of one such species, Sphingobium chlorophenolicum , which had been discovered in pentachlorophenol-laced soil in Minnesota in 1985. (spectrevision.net)
Hundreds of thousands of gallons of pentachlorophenol product (or "penta") had seeped through soil and contaminated the Thomas Street neighborhood's groundwater while Crestline and SNE were in operation. (cleanwausau.com)
Rate of react1
Association of some radicals with the metal increases their stability and reduces their rate of reaction with oxygen such that they can persist for several days in the environment. (lsu.edu)
Enzyme1
This enzyme catalyses the following chemical reaction (1) pentachlorophenol + 2 NADPH + H+ + O2 ⇌ {\displaystyle \rightleftharpoons } 2,3,5,6-tetrachlorohydroquinone + 2 NADP+ + chloride + H2O (2) 2,3,5,6-tetrachlorophenol + NADPH + H+ + O2 ⇌ {\displaystyle \rightleftharpoons } 2,3,5,6-tetrachlorohydroquinone + NADP+ + H2O Pentachlorophenol monooxygenase is a flavoprotein (FAD). (wikipedia.org)
The carbon source is used as food by native microbes, which in turn, produce hydrogen through fermentation reactions. (frtr.gov)
Allergic2
Nickel on-site is at levels which could result in an allergic reaction (nickel itch) in a small part of the population that is sensitive to nickel. (illinois.gov)
Regulatory aspects of skin sensitizing agents cur- of allergic skin reactions, effective doses vary substan- rently comprise mostly qualitative (i.e., ``all or none'') tially, due to considerable inter-individual differences in considerations. (cdc.gov)
Compounds1
In this reaction, chlorinated compounds serve as the terminal electron acceptor, and hydrogen (sometimes acetate as well) serves as the electron donor. (frtr.gov)
Mechanisms2
The difficulty in modeling stems from the complex thermal remediation reaction network, where several removal mechanisms compete in parallel. (utexas.edu)
The current work uses pentachlorophenol and pyrene as case-studies, varying system variables and identifying removal mechanisms based on byproduct yields. (utexas.edu)
Oxidation3
The results indicate that the oxidation effect of ozone on the petroleum-based pollutants is associated with water temperature, pH, dosage of ozone and reaction time. (studyres.com)
Result and discussion 2.1 Effects of ozone oxidation on the removal of petroleum-based pollutants from water Ozone oxidation includes direct reaction and indirect reaction. (studyres.com)
This paper mainly discusses the effects of ozone dosage, reaction time, reaction temperature and pH on the oxidation of petroleum-based pollutants. (studyres.com)
Organic1
Pentachlorophenol (a wood preservative) was the organic compound present in the highest concentration (36 parts per million). (illinois.gov)
Related bacteria have PcpA and PcpE, and they use these enzymes to break down molecules that are similar to pentachlorophenol at this stage of the reactions. (spectrevision.net)
Santa Isabel in Northern Mexico and 17 similar reactions in Columbus, New Mexico President Wilson took used US resources into Mexico with plants to supply Villa full or original. (jedi-verein.de)
This Skin Notation Profile provides the SK assignments and supportive data for pentachlorophenol (PCP). (cdc.gov)
Wood1
EPFRs have been found associated with soot and fly-ash produced from the combustion of hazardous wastes and Superfund soils from a former wood-treatment facility contaminated with pentachlorophenol. (lsu.edu)
Current1
They have summed up their current understanding of the evolution of pentachlorophenol-feeding with a diagram, which I've reprinted below. (spectrevision.net)
The removal efficiency of petroleum-based pollutants increases with the rise of temperature, pH, amount of ozone and reaction time, and reaches 83% under the conditions that the ratio of ozone to petroleum-based pollutants is 1:1 and the reaction time is 10 min. (studyres.com)
Capable1
High-molecular-weight insoluble polymers that contain functional cationic groups capable of undergoing exchange reactions with anions. (lookformedical.com)
Recent1
So a number of scientists have spent recent years dissecting the pentachlorophenol-eaters. (spectrevision.net)
Time1
The 3 neurobehavioral tests included in the survey were simple reaction time, symbol-digit substitution, and serial digit learning. (cdc.gov)
Network1
The sweet untuk of a home receives of a purpose or a ItalyCo-editor of so adventuresome reactions, and the network continue of the other metre or different. (edvgruber.eu)
Models1
Develop Reaction Kinetic Models of surface-mediated formation of EPFRs and PCDD/Fs. (lsu.edu)
Metal1
The long hydrocarbon chain forms hydrophobic layers in solution that blocks any kind of reaction between the corrosive agent and the metal ions. (chemtexltd.com)