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2001•Journal of Anqing Teachers CollegeRequires access

The study of xylanase pretreatment of wood kraft plup before bleaching

Xu Zhi

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Abstract

The technological conditions of xylanase pretreatment of wood kraft pulp before H 2O 2 bleaching are studied in this paper.The optimum technological conditions have been obstained as follows:20IU rdosage enzyme per gram of pulp,6% pulp consistency for 3 hours.In the same conditions of H 2O 2 bleaching,the brightness of the pulp after pretreatment with xylanase is raised 2～3%SBD.

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What this paper is about

The technological conditions of xylanase pretreatment of wood kraft pulp before H 2O 2 bleaching are studied in this paper.The optimum technological conditions have been obstained as follows:20IU rdosage enzyme per gram of pulp,6% pulp consistency for 3 hours.In the same conditions of H 2O 2 bleaching,the brightness of the pulp after pretreatment with xylanase is raised 2～3%SBD.

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Available abstract

The technological conditions of xylanase pretreatment of wood kraft pulp before H 2O 2 bleaching are studied in this paper.The optimum technological conditions have been obstained as follows:20IU rdosage enzyme per gram of pulp,6% pulp consistency for 3 hours.In the same conditions of H 2O 2 bleaching,the brightness of the pulp after pretreatment with xylanase is raised 2～3%SBD.

Key concepts: Xylanase, Kraft process, Pulp (tooth), Pulp and paper industry, Kraft paper, Chemistry, Kappa number, Food science

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