[Biodegradation Characteristics and Kinetics of p-nitrophenol by Strain Arthrobacter sp. CN2]. 2015

Lei Ren, and Yan-hua Shi, and Yang Jia, and Xue-song Yao, and Nahurira Ruth, and Chun-xia Mi, and Yan-chun Yan

To investigate the application potential of the p-nitrophenol-degrading bacterium Arthrobacter sp. CN2 in practice, the effects of pH, salinity and additional carbon source were determined, and the degradation kinetics of p-nitrophenol was analyzed. Strain CN2 could degrade p-nitrophenol efficiently in a wide range of pH (7.0-8.0) and elevated salinity (0-60 g · L(-1)). Investigation of additional glucose found that 0.5% of glucose could significantly increase the degrading speed and the time to reach 90% of degradation rate was shortened by 16 hours. These results indicated that strain CN2 could degrade p-nitrophenol efficiently under different conditions and had a great potential for application in practice.

UI MeSH Term Description Entries
D007700 Kinetics The rate dynamics in chemical or physical systems.
D009596 Nitrophenols PHENOLS carrying nitro group substituents. Nitrophenol
D001173 Arthrobacter A genus of asporogenous bacteria isolated from soil that displays a distinctive rod-coccus growth cycle.
D001673 Biodegradation, Environmental Elimination of ENVIRONMENTAL POLLUTANTS; PESTICIDES and other waste using living organisms, usually involving intervention of environmental or sanitation engineers. Bioremediation,Phytoremediation,Natural Attenuation, Pollution,Environmental Biodegradation,Pollution Natural Attenuation
D054712 Salinity Degree of saltiness, which is largely the OSMOLAR CONCENTRATION of SODIUM CHLORIDE plus any other SALTS present. It is an ecological factor of considerable importance, influencing the types of organisms that live in an ENVIRONMENT.

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