Abstract
AbstractPolyporus versicolor was selected to find out its ability to degrade four different lignocellulosic residues (angiospermic wood sawdust, sugarcane bagasse, paddy and wheat straw) under semisolid conditions. The production of laccase was also studied on these substrates. Sawdust suffered a maximum lignin loss though overall reduction in weight was maximum in paddy straw. Addition of malt extract and certain phenolic compounds (gallic acid, tannic acid and orcinol) favoured ligninolysis in sawdust. A moisture level of 5 ml/g of sawdust was found to be the most suitable for degradation whereas laccase yield increased with further rise in moisture content.
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