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《Environmental Science & Technology》 2013-02
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Screening Process and Decolorization Characteristics of Novel Bacterial Decolorizers

WANG Yan-ni 1,HAN Jing-long 1*,CHEN Bo-yan 2*(1.School of Environmental and Material Engineering,Yantai University,Yantai 264005,China; 2.Department of Engineering,I-Lan University,I-Lan 26047,China)  
This study provided a novel strategy to explore indigenous strains with excellent decolorization capability from the most biodiverse regions in Taiwan and China.Bacterial isolates were obtained via serial selections under selection pressures of model non-azo dye,and got the mix bacterium with effectively electron transfer to non-azo dyes.The decolorization characteristics of azo dyes were also studied.Results indicated that according to decolorization capability,4 isolates with different protein expressions were identified via 16S rRNA analysis.These isolated decolorizers were identified to be Rahnella aquatilis,Acinetobacter guillouiae,Microvirgula aerodenitrificans and Pseudomonas sp.Among them,Rahnella aquatilis DX2b,Microvirgula aerodenitrificans SH7b were novel bacterial decolorizers with excellent decolorization capability on non-azo dye RB198 and azo dye RB160,Orange I,which is the first report revealing the viability of dye decolorization capabilities of strains in the Rahnella and Microvirgula genera.
【Fund】: 吉林省科技厅基金(20105065)
【CateGory Index】: X172
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