Decolorization of triphenylmethane and azo dyes by Citrobacter sp.

被引：136

作者：

An, SY

Min, SK

Cha, IH

Choi, YL

Cho, YS

Kim, CH

Lee, YC ^{[1
]}

机构：

[1] Dong A Univ, Coll Nat Resources & Life Sci, Div Biotechnol, Pusan 604714, South Korea

[2] Busan Inst Hlth & Environm, Dept Microbiol, Pusan 613104, South Korea

[3] Dongguk Univ, Coll Oriental Med, Dept Biochem & Mol Biol, Kyung Pook 780350, South Korea

来源：

BIOTECHNOLOGY LETTERS | 2002年 / 24卷 / 12期

关键词：

azo dye; biodegradation; Citrobactor sp; decolorization; triphenylmethane dye;

D O I：

10.1023/A:1015610018103

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

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 muM 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 degreesC. Decolorization of dyes was also observed with extracellular culture filtrate, indicating the color removal by enzymatic biodegradation.

引用

页码：1037 / 1040

页数：4

共 9 条

[1] Biodegradation of triphenylmethane dyes [J].