The Decolorizing Characterization of Shewanella decolorationis S12~T
- VernacularTitle:脱色希瓦氏菌(Shewanella decolorationis)S12~T的脱色特性
- Author:
Meiying XU
- Publication Type:Journal Article
- Keywords:
Shewanella decolorationis S12~T, Azo dye, Decolorization
- From:
Microbiology
1992;0(01):-
- CountryChina
- Language:Chinese
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Abstract:
High efficient dyes decolorizing bacterium, strain S12~T, was isolated from activated-sludge of textile-printing wastewater treatment plant. The strain was identified as a novel specie of the genus Shewanella, for which the name Shewanella decolorationis sp. nov. is proposed. It's decolorizing rate reached 96% in 4h, when 50mg/L of azo dye was used. The organism exhibited a remarkable color removal capability, even at azo dye's concentration of 2,000mg/L. A clear decolorizing zone around each colonies appeared after four days grown on LB plate containing 500mg/L azo dye. The changes of UV-visible spectra of azo dye solution indicate that the color removal was largely attributed to biodegradation. The decolorizing enzymes of strain S12~T were constitute type and not secreted to the culture medium.
