Industrial dye decolorization by laccases from ligninolytic fungi

被引:275
作者
Rodríguez, E [1 ]
Pickard, MA [1 ]
Vazquez-Duhalt, R [1 ]
机构
[1] Univ Nacl Autonoma Mexico, Inst Biotechnol, Cuernavaca, Morelos, Mexico
关键词
D O I
10.1007/PL00006767
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
White-rot fungi were studied for the decolorization of 23 industrial dyes. Laccase, manganese peroxidase, lignin peroxidase, and aryl alcohol oxidase activities were determined in crude extracts from solid-state cultures of 16 different fungal strains grown on whole oats. All Pleurotus ostreatus strains exhibited high laccase and manganese peroxidase activity, but highest laccase volumetric activity was found in Trametes hispida. Solid-state culture on whole oats showed higher laccase and manganese peroxidase activities compared with growth in a complex liquid medium. Only laccase activity correlated with the decolorization activity of the crude extracts. Two laccase isoenzymes from Trametes hispida were purified, and their decolorization activity was characterized.
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页码:27 / 32
页数:6
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