ENZYMATIC BLEACHING OF PULP

摘要

A method for bleaching of sulphate (kraft) pulp with decreased chemical dose and which comprises treatment of the pulp with low molecular weight xylanase having the following amino acid sequence: -Asn-Gln-Thr-Gly-Tyr-Asp-Gly-Met-Tyr-Ser-Phe-Trp-Thr-Asp-Gly-Gly-Gly-S er-Val-Ser-Met-Thr-Leu. The enzyme is produced by Chainia sp. ATCC 53812.