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KMID : 1160220180460010079
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Mycobiology
2018 Volume.46 No. 1 p.79 ~ p.83
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Laccase Activity and Azo Dye Decolorization Potential of Podoscypha elegans
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Pramanik Satadru
Chaudhuri Sujata
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Abstract
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Azo dyes containing effluents from different industries pose threats to the environment. Though there are physico-chemical methods to treat such effluents, bioremediation is considered to be the best eco-compatible technique. In this communication, we discuss the decolorization potentiality of five azo dyes by Podoscypha elegans (G. Mey.) Pat., a macro-fungus, found growing on the leaf-litter layer of Bethuadahari Wildlife Sanctuary in West Bengal, India. The fungus exhibited high laccase and very low manganese peroxidase activities under different culture conditions. Decolorization of five high-molecular weight azo dyes, viz., Orange G, Congo Red, Direct Blue 15, Rose Bengal and Direct Yellow 27 by the fungus was found to be positive in all cases. Maximum and minimum mean decolorization percentages were recorded in Rose Bengal (70.41%) and Direct Blue 15 (24.8%), respectively. This is the first record of lignolytic study and dye decolorization by P. elegans.
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KEYWORD
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Azo dye, bioremediation, laccase, litter decomposing fungi, Podoscypha elegans
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