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Properties of a Hexane-Degrading Consortium  

Lee Eun-Hee (Department of Environemental Science and Engineering, Ewha Womans University)
Kim Jaisoo (Department of Environemental Science and Engineering, Ewha Womans University)
Cho Kyung-Suk (Department of Environemental Science and Engineering, Ewha Womans University)
Publication Information
Microbiology and Biotechnology Letters / v.33, no.3, 2005 , pp. 215-221 More about this Journal
Abstract
It was characterized the hexane biodegradation and mineralization using a hexane-degrading consortium, and analyzed its bacterial community structure by 16S rDNA PCR-DGGE (denaturing gradient gel electrophoresis). The specific growth rate (${\mu}_{max}$) of the hexane-degrading consortium was 0.2 $h^{-1}$ in mineral salt medium supplemented with hexane as a sole carbon source. The maximum degradation rate ($V_{max}$) and saturation constant ($K_{s}$) of hexane of the consortium are 460 ${\mu}mol{\cdot}g-DCW^{-1}{\cdot}h^{-1}$ and 25.87 mM, respectively. In addition, this consortium could mineralize $49.1{\%}$ of $^{14}C$-hexane to $^{14}CO_2$, and $43.6{\%}$ of $^{14}C$-hexane) was used for the growth of biomass. The clones isolated from the DGGE bands were closely related to the bacteria which were capable of degrading pollutants such as oil, biphenyl, PCE, and waste gases. The hexane-degrading consortium obtained in this study can be applied for the biological treatment of hexane.
Keywords
Hexane; biodegradation; bacterial consortium; mineralization; denaturing gradient gel electrophoresis;
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