Industrial dye decolorization by laccases from ligninolytic fungi

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 str...

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Bibliographic Details
Published in:Current microbiology 1999, Vol.38 (1), p.27-32
Main Authors: Rodriguez, E, Pickard, M.A, Vazquez-Duhalt, R
Format: Article
Language:English
Subjects:
Alcohol Oxidoreductases - metabolism
Avena
Biological and medical sciences
Biology of microorganisms of confirmed or potential industrial interest
Biotechnology
Bjerkandera adusta
Coloring Agents - metabolism
Coriolus versicolor
Culture Media
Dyes
Food science
Fundamental and applied biological sciences. Psychology
Fungal Proteins - isolation & purification
Fungal Proteins - metabolism
Fungi - enzymology
Fungi - growth & development
Growth, nutrition, metabolism, transports, enzymes. Molecular biology
Industrial Microbiology
Laccase
Manganese
Manganese - metabolism
Microbiology
Mission oriented research
Mycology
Oxidoreductases - isolation & purification
Oxidoreductases - metabolism
Peroxidase - metabolism
Peroxidases - metabolism
Phanerochaete chrysosporium
Physiology and metabolism
Pleurotus - enzymology
Pleurotus ostreatus
Trametes
trametes hispida
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Description
Summary: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.
ISSN:0343-8651
1432-0991
DOI:10.1007/PL00006767