The Biobleaching Effects of Xylanase from Streptomyces griseorubens LH-3 on Bagasse Pulp

In this work, the S. griseorubens LH-3 crude xylanase was used to treat bagasse pulp, and the release of chromophores was the highest at the dosage of 30 IU g1 dry pulp. Pulps, untreated and treated with crude xylanase were bleached with hydrogen peroxide. Biobleaching of bagasse pulp with this enzyme increased the brightness of the pulp by 8.5% and reduced the Kappa number by 15.3% compared with the untreated group.This crude xylanase has promising potential for industrial applications.