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Production of laccase from Pleurotus florida using agro‐wastes and efficient decolorization of Reactive blue 198 by P. Sathishkumar; K. Murugesan; T. Palvannan is a Biochemistry, Genetics and Molecular Biology article available to read on EtoBox.

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## Abstract __Pleurotus florida__ NCIM 1243 produced laccase as the dominant lignolytic enzyme during the dye decolorization. Banana peel was the best substrate for extracellular laccase production under solid state fermentation when compared to mandarin peel and cantaloupe peel. The maximum activity of laccase (5.4 U/g) was detected on the 10 day. The ratio of banana peel: mandarin peel: cantaloupe peel (5:2:3) showed increased production of laccase (6.8 U/g). __P. florida__ produced two extracellular laccase isoenzymes (L1 and L2). The half life of laccase at 60 °C was 2 h and at 4 h it retained 25% residual activity. __P. florida__ laccase showed high thermostability and an interesting difference was noticed in the behavior of laccase isoenzymes at different temperature. The L1 isoenzyme of laccase showed remarked thermostability at 60 °C in the native PAGE when compared to L2 isoenzyme. The optimum pH, temperature and enzyme concentration for maximum decolorization was found to be 4.5, 60 °C and 1.2 U/ml, respectively. Partially purified laccase enzyme showed excellent decolorization activity to Reactive blue 198. The maximum decolorization (96%) was observed at lower dye conce

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Author

P. Sathishkumar; K. Murugesan; T. Palvannan

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Ltd.; Akademie Verlag; Wiley (ISSN 0233-111X)

Published

2010

Language

EN

Field

Biochemistry, Genetics and Molecular Biology (Life Sciences)