Decolorization and biodegradation of Indigo carmine by a textile soil isolate Paenibacillus larvae

被引：41

作者：

Ramya, Mohandass ^{[1
]}

Anusha, Bhaskar ^{[1
]}

Kalavathy, S. ^{[2
]}

机构：

[1] Bishop Heber Coll, Dept Biotechnol, Tiruchirappalli 620017, Tamil Nadu, India

[2] Bishop Heber Coll, Dept Environm Sci, Tiruchirappalli 620017, Tamil Nadu, India

来源：

BIODEGRADATION | 2008年 / 19卷 / 02期

关键词：

Paenibacillus larvae; decolorization; degradation; Indigo carmine; isatin sulfonic acid;

D O I：

10.1007/s10532-007-9134-6

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：

The potential of recently isolated bacteria Paenibacillus larvae for the effective decolorization of Indigo carmine was evaluated. The effects of operational parameters (temperature, pH, dye concentration, shaking/non shaking) were tested. Maximum extent of decolorization was observed when the medium was incorporated with 10 g/l of yeast extract and peptone. Decolorization was strongly inhibited at non-shaken conditions as well as incorporation of inorganic sources (sodium nitrite and ammonium chloride) in the medium. Maximum decolorization was observed at 30 degrees C (100%) and 40 degrees C (92%) at 8 h of incubation. The LC-MS and NMR analysis confirms the oxidation of Indigo carmine .The primary degradation products were found to be Isatin sulfonic acid and anthranilicacid.

引用

页码：283 / 291

页数：9

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