Asian Journal of Microbiology, Biotechnology & Environmental Sciences Paper

Vol 07, Issue 2, 2005; Page No.(305-309)

THE ENZYMATIC ACTIVITIES OF LINGOCELLULOLYTIC FUNGI AND THEIR COMPETITIVE SAPROPHYTIC ABILITY

S. MANORAMA. AND S. NEELAKANTAN

Abstract

The biological treatment of lignocellulosic tnaterials using different inicro-organisms adopting solid state fermentaion system has been found to improve the nutritive value of fibrous crop residues. Twenty mold cultures were evaluated for competitive saprophytic ability and enzyamatic activities Le. CMCase, FPase, xylanase, I accase and phenol.oxidase activities in pure and wheat straw substrates. Oct of twenty mold cultures, only two mold cultures viz. Coprim0 cinerus NS, and Keane. sp. 71 31 hod mud, higher (NA (82.80 and 108.20 xylanase, laccase and phenol.oxidase activities with pore RS well as wheat straw substrates. Phanerochacle chrys0sporium K, had higher cell ololytic and xyLmax activMes 10.463 and 0.473 111, respectively) but lower laccase 12 RU) and phenol.oxidau activities with satisfactory CSA (40.50 cm'). Pleurolus oslreal us 215 showed higher cellulolytic activity and moderate CSA but slightly lower xylanase, laccase and phenol.oxidase activities. Plenrolus vslrealus 3001-50 gave higher and phenol idave adivites and lower cellulase and laccase activities having good growth (COO). Piel(I0/10 sp. 1.71-17 had good CSA, nmderately high xylanase, laccase, phenoloxidase and cellulase activities. Hence,uu cultures via., C. ciactrus NS,, ) chrysosporim lçP 051.1115 3001.50, P. astradus ZI 5, Min." sp. PIN and selected fur bioconversion of crop residues on the basis of higiN. • I not-oxidase activity with high or moderate CSA and associated with high or moderate laccase, (16' xylanase activities.

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