Decolorization of 1:2 metal complex dye Acid blue 193 by a newly isolated fungus, Cladosporium cladosporioides

被引：29

作者：

Vijaykumar, MH ^{[1
]}

Veeranagouda, Y ^{[1
]}

Neelakanteshwar, K ^{[1
]}

Karegoudar, TB ^{[1
]}

机构：

[1] Gulbarga Univ, Dept Biochem, Gulbarga 585106, Karnataka, India

来源：

WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY | 2006年 / 22卷 / 02期

关键词：

Cladosporium cladosporioides; dye decolorization; laccase; manganese peroxidase; metabolites;

D O I：

10.1007/s11274-005-9013-4

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 fungus Cladosporium cladosporioides isolated from coal sample as a decolorizing microorganism. It decolorized five different azo and triphenylmethane dyes like acid blue 193, acid black 210, crystal violet, reactive black B(S) and reactive black BL/LPR both on solid and in liquid broth medium. Culture broth of this fungus decolorized completely 100 mg of acid blue 193 l(-1) in 8 days. The extracellular enzyme of Cladosporium cladosporioides decolorized acid blue 193 on repeated addition to a total (out of 700 mg l(-1)) concentration of 564 mg l(-1) within 168 h without significant decline in the activity, showing the resistant property of Cladosporium cladosporioides to a high concentration of the dye. The optimal temperature 40 degrees C, pH 5.6 and sugar concentration of 4% required for decolorization of acid blue 193. Cladosporium cladosporioides showed manganese peroxidase activity with 41 U l(-1), laccase activity with 1413 U l(-1) and lignin peroxidase activity was negligible after day 8 of incubation.

引用

页码：157 / 162

页数：6

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