APPLYING OF LIGNINOLYTIC FUNGI ON EUCALYPTUS GRANDIS WOOD FOR PULPING PRETREATMENT OR FRACTIONATION

INALBÓN M.C.; MOCCHIUTTI P.; VENGHI M.M.; ZANUTTINI M.A.; BALATTI P.A.; RAJCHENBERG M.

Puerto Iguazú

Congreso; 13er Congreso Internacional en Ciencia y Tecnología de Metalurgia y Materiales 2013. Simposio Internacional sobre Materiales Lignocelulósicos; 2013

SAM CAMET

The effect of different fungal treatments on several technology characteristics of Eucalyptus grandis industrial chip and blocks was studied. The percentage of the substrate mass loss by the fungal treatment, the relative amount of extractives and lignin were determined. The effective capillarity of wood, pH and total reducing sugars concentration in water-soluble fraction were also determined. There was a reduced mass loss of the substrate by the fungal treatment (less than 3%). Gelatoporia subvermispora FBCC 313 shows highest level of endoglucanase activity on the WSF, reduction in the lignin content and an increase in the effectively capillarity in the radial wood direction. This last effect is interesting since it will improve the impregnation and reduce the consumption of reagents in subsequent treatments of industry processes.