THE EFFECTS OF TREATMENT WITH THE WHITE-ROT FUNGUS TRAMETES VERSICOLOR AND LACCASE ENZYMES DERIVED THERMOMECHANICAL PULPS

摘要

Douglas-fir is a significant west coast tree species that cannot be used as a furnish in the high yield thermomechanical pulping process (TMP) because of the low brightness caused by the high chromophoric extractive content in its heartwood. Trametes versicolor and laccase enzymes were assessed for their potential to improve the brightness of Douglas-fir heartwood derived TMP. Treatments with T. versicolor were relatively unsuccessful.