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Decolorization of triphenylmethane and azo dyes by Citrobacter sp
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Decolorization of triphenylmethane and azo dyes by Citrobacter sp
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Journal Article
Decolorization of triphenylmethane and azo dyes by Citrobacter sp
2002
Overview
A Citrobacter sp., isolated from soil at an effluent treatment plant of a textile and dyeing industry, decolorized several recalcitrant dyes except Bromophenol Blue. More than 90% of Crystal Violet and Methyl Red at 100 mu M were reduced within 1 h. Gentian Violet, Malachite Green and Brilliant Green lost over 80% of their colors in the same condition, but the percentage decolorization of Basic Fuchsin and Congo Red were less than the others, 66 and 26%, respectively. Decolorization of Congo Red was mainly due to adsorption to cells. Color removal was optimal at pH 7-9 and 35-40 degree C. Decolorization of dyes was also observed with extracellular culture filtrate, indicating the color removal by enzymatic biodegradation.
Publisher
Springer,Springer Nature B.V
