Laccase Production Under Solid-State Fermentation of Rice Straw by Pycnoporus sanguineus SYBC-L12 and Its Decolorization of Synthetic Dyes

Abstract:

Pycnoporus sanguineus SYBC-L12 has strong ability to produce high level of laccase using rice straw as substrate and support materials under solid-state fermentation.We optimized the condition for laccase production using one-factor-at-a-time method and the laccase activity of the optimized condition was about 10 times higher than that of the original level.The obtained laccase was used to decolorize anthraquinone dyes,triphenylmethane dyes and ethyleniminoquinone dyes and their mixed one at room temperature,which showed desirable results.Under higher temperature,azo dyes were partly decolorized.Moreover,most mental ions of industrial effluent used in the essay had no inhibitory effect on the decolorization except a few.Therefore,laccase as a kind of environmentally friendly bio-catalyzer has a great potential in sewage disposal and effluent treatment.