نتایج جستجو برای: high molecular weight hydrocarbons

تعداد نتایج: 2830116  

Journal: :FEMS microbiology ecology 2013
Raquel Simarro Natalia González Luis Fernando Bautista Maria Carmen Molina

This study evaluates the ability of two bacterial consortia (C2PL05 and BOS08), extracted from very different environments, to degrade low- (naphthalene, phenanthrene, anthracene) and high- (pyrene, perylene) molecular-weight polycyclic aromatic hydrocarbons (PAHs) at high (15-25 °C) and low (5-15 °C) temperature ranges. C2PL05 was isolated from a soil in an area chronically and heavily contami...

2016
Benjamin D. Folwell Terry J. McGenity Corinne Whitby

High-molecular-weight polycyclic aromatic hydrocarbons (HMW-PAHs) are natural components of fossil fuels that are carcinogenic and persistent in the environment, particularly in oil sands process-affected water (OSPW). Their hydrophobicity and tendency to adsorb to organic matter result in low bioavailability and high recalcitrance to degradation. Despite the importance of microbes for environm...

Journal: :Applied and environmental microbiology 2000
S Boonchan M L Britz G A Stanley

This study investigated the biodegradation of high-molecular-weight polycyclic aromatic hydrocarbons (PAHs) in liquid media and soil by bacteria (Stenotrophomonas maltophilia VUN 10,010 and bacterial consortium VUN 10,009) and a fungus (Penicillium janthinellum VUO 10, 201) that were isolated from separate creosote- and manufactured-gas plant-contaminated soils. The bacteria could use pyrene as...

Journal: :Science 1946
S B Twiss

S. S. Kurtz, Jr., Chairman; P. D. Bartlett, Vice-Chairman 17 June E. Bright Wilson, Jr., "Infrared and Raman Spectra." R. S. Mulliken, "Iltraviolet Absorption Spectra." 18 June G. W. Wheland, "Theory of the Chemical Bond and Resonance in Hydrocarbons." P. D. Bartlett, "Report of Committee on Future Policy of Conference on Petroleum Chemistry at Gibson Island." L. S. Kassel, "Isomerization Equil...

2016
Nagalakshmi Haleyur Esmaeil Shahsavari Abdulatif A. Mansur Eman Koshlaf Paul D. Morrison A. Mark Osborn Andrew S. Ball

Polycyclic aromatic hydrocarbons (PAHs) are a major class of organic hydrocarbons with high molecular weight that originate from both natural and anthropogenic sources. Sixteen PAHs are included in the U.S Environmental Protection agency list of priority pollutants due to their mutagenic, carcinogenic, toxic and teratogenic properties. In this study, the development and optimization of a simpli...

Journal: :avicenna journal of medical biochemistry 0
jamshid karimi department of biochemistry and nutrition, hamadan university of medical sciences, hamadan, ir iran; department of biochemistry and nutrition, hamadan university of medical sciences, hamadan, ir iran. , +98-8138380462 ali asghar moshtaghie department of biochemistry, isfahan university of medical sciences, isfahan, ir iran bahram haghighi department of biochemistry, isfahan university of medical sciences, isfahan, ir iran

conclusions the elevation of hmw-alp activity in cu treated animal suggests the occurrence of biliary disease. this may be used as a biomarker for the diagnosis of copper toxicity. results obtained data showed that with increasing administration of copper, the alp activity was elevated significantly. in comparison with the control group the elevations were between 20%-56% using gel filtration c...

Journal: :FEMS microbiology reviews 1990
R S Hanson H C Tsien K Tsuji G A Brusseau L P Wackett

Low-molecular-weight halogenated hydrocarbons are susceptible to degradation by anaerobic and aerobic bacteria. The methanotrophic bacterium Methylosinus trichosporium 0B3b degrades trichloroethylene more rapidly than other bacteria examined to date. Expression of soluble methane monooxygenase (MMO) is correlated with high rates of biodegradation. An analysis of 16 S rRNA sequences of 11 riboso...

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