Modification of Bleached Softwood Pulp with Xylanase

摘要：

　　Xylanse named as Pulpzyme HC was used to modify bleached softwood pulp before refining.The efficiency of modification by different enzyme dosage was invested in this paper.The result showed that enzymatic treatment decreased the dissolved charge and absolute Zeta potential of the slurry and increased the fiber surface wettability.Appropriate Pulpzyme HC (0.4u/g) could improve the refining efficiency by 9.5°SR.The brightness and bulk of hand sheets increased with the increasing of the enzyme.Tensile index and tear index of hand sheets reached the maximum at the enzyme dosage of 0.2u/g.In this dosage,fiber length,knot index and curl index of fiber increased.But excessive enzyme decreased the tear index and had no effect on the tensile index.

关键词： xylanase modification refining dissolved charge wettability

作者: Min Du Xinping Li Wuguang Li

作者单位: School of Papermaking Engineering, Shaanxi University of Science and Technology, Xian, 710021,China

会议类型: 国际会议

会议名称: the 2011 International Conference on Biotechnology, Chemical and Materials Engineering (2011生物,化学与材料工程国际会议(CBCME 2011))

会议地点: 昆明

会议语种:英文

页码: 855-858

在线出版日期: 2011-12-28（万方平台首次上网日期，不代表论文的发表时间）