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China
Contact Person Mr. Justin
liuquan, Zibo, Shandong
Enzymes used for pulp bleaching (Model No. Xylzyme-PBA) is a class of xylanase used in the paper pulp industry, the main function is to increase the bleachability of pulp and decrease the bleaching chemicals supplements The chemical pulping process always gives the pulp with a dark brown colour caused by lignin residues, however, this dark pulp must been bleached before used for produce the fine paper The application of Xylzyme-PBA can opens up the hemicellulose structure containing bound lignin and facilitates the removal of precipitated lignin prior to bleaching, this can wash out more lignin from the pulp and make it more susceptible to bleaching chemicals, therefore, the bleachability of pulp can be increased and the need for chemicals in the subsequent bleaching stages will be significantly reduced Based on the specificity character of enzymes, the xylanase is only degrade the xylan but not cellulose, the optimum result can be effected under broad pH range and temperature for all the different pulp types, especially it can act on the kraft process efficiently under the high-temperature and alkaline environment More information and technical date of enzymes of xylanase for pulp bleaching are available base on request