Hydrolytic capacity of white rot fungi from Misiones (Argentina) on lignocellulosic substrate

GIORGIO, E.M. FONSECA, M.I. VILLALBA, L.L. ZAPATA, P.D.

Congreso; 44o Congresso e Exposição Internacional de Celulose e Papel.; 2011

Lignocellulose is the major structural component of plant cell walls and one of the most abundant organic compounds in the biosphere. Lignocellulose is composed of lignin, hemicelluloses and cellulose. The chemical properties of the components of lignocellulosic make them a substrate of enormous biotechnological value. Hydrolytic capacity of Coriolus versicolor f. antarcticus (BAFC 266) and Pycnoporus sanguineus (BAFC 2126) on lignocellulosic substrate (sawdust) and the cellulolytic activity on several medium containing carboxymethylcellulose (CMC) were investigated. We identified endoglucanase activity on MEA-CMC and Czapeck-CMC medium plates. White rot fungi produced of clearing zones 2,3 to 4,4 cm diameter. Enzymatic activities from culture supernatants were obtained, after 32 days of incubation on lignocellulolitic substrate. P. sanguineus showed greater endoglucanase activity than C. versicolor f antarcticus for same condition. However, they did not presented significant differences in exoglucanase activity.