Biodegradation of hemicellulosic materials for cellulase and hemicellulase production by fungi

ABSTRACT

Bagasse, rice and wheat straw hemicelluloses were separately used as the only carbon source for the growth and enzyme production by Aspergillus niger and Penicillium funiculosumThe IR spectra of bagasse and rice straw hemicelluloses show a great similarityAcid hydrolysis of these hemicelluloses indicated that sugar components were mainly xyloseThe activities of cellulase [CMC-ase, filter- paper activity and beta-glucosidase] and hemicellulase [xylanase and beta-xylosidase] were determined endocellularly and extracellularlyHigher endocellular and extracellular beta-glucosidase, beta- xylosidase, xylanase and extracellular CMC-ase activities were obtained with ANigerNo filter-paper activity could be detected after seven days of incubationThe results may indicate an evidence on the existence of a relationship between cellulases and hemicellulases in the tested organisms