ABSTRACT
The objective of this study was to evaluate lignin removal efficiency of three eucalypt species through Pycnoporus sanguineus fungus inoculation. The wood samples were inoculated at different periods: 30, 60 and 90 days. To verify the efficiency of the delignification caused by the fungus were quantified: mass loss, extractives, acid insoluble lignin and morphological modification of inoculated and not inoculated fiber. The results showed that Eucalyptus globulus wood in the 90day period was the most promising for fungal pretreatment, where delignification occurred the most. In general, it was possible to concude that the fungus Pycnoporus sanguineus is efficient in the degradation of lignin, which makes it a potential process for the pulp and paper industry, which desires the removal of these polymers always aiming at the most economical production and environmental feasible.
Keywords
eucalypt; white rot fungi; fibers; delignification
