Study on the Environmental Materials with the Enzyme-Producing Conditions of a PCBs-Degrading Halophilic Bacterium

Zhe Zhao

doi:10.4028/www.scientific.net/AMR.738.83

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Study on the Environmental Materials with the Enzyme-Producing Conditions of a PCBs-Degrading Halophilic Bacterium
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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 738Study on the Environmental Materials with the...

Study on the Environmental Materials with the Enzyme-Producing Conditions of a PCBs-Degrading Halophilic Bacterium

Abstract:

Polychlorinated biphenyls (PCBs) are Persistent Organic Pollutants (POPs). This experiment screened a halophilic bacterium from the deep sea sediments, which could grow at the salinity of 15%, and designated as B2.6. The cells of this strain were rod shaped, Gram negative, motile, could grow in pH range of 5.0-9.0, and temperature range 10-37°C. Growth of this bacterium in the presence of PCBs, as the sole source of carbon and energy. The ions of IA, such as Na⁺ and K⁺could enhance the activity of PCBs-degrading enzyme, while the transitional metal ions, such as Co²⁺, Mn²⁺, Cu²⁺, Fe²⁺ and Fe³⁺ may inhibit it in a certain degree. The optimal temperature, pH value and concentration of NaCl for the PCBs-degrading enzyme were 25-35°C, pH 6-8 and 50 g·L^-1, respectively.

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Periodical:

Advanced Materials Research (Volume 738)

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83-86

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.738.83

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Online since:

August 2013

Authors:

Zhe Zhao

Keywords:

Biodegradation, Enzyme, Halophilic, PCB

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