天津科技大学学报2026，Vol.41Issue(2)：48-53,6.DOI:10.13364/j.issn.1672-6510.20240197
高性能木聚糖酶助漂硫酸盐针叶木浆的研究
High-Performance Xylanase-Assisted Bleaching of Kraft Coniferous Pulp
摘要
Abstract
The bleaching-assisting effects of acidotolerant resistance xylanases XYS and alkaline resistance and thermo-stable resistant xylanase VYBRANT 701 in the O(X1D0)EPD1 and OD0(X2EP)D1 drift sequences were studied in the current research.The results showed that the whiteness of kraft coniferous pulp after bleaching reached 86.5%ISO in the bleaching stage of XYS enzyme-assisted chlorine dioxide bleaching section and VYBRANT 701 enzyme-assisted bleaching alkali ex-traction bleaching section,and the tensile index and bursting index of the paper sheets obtained from O(X1D0)EPD1 bleached pulp increased by 10.4%and 10.9%,respectively.Scanning electron microscope and fiber analyzer showed that the bleached fiber surface exhibited surface damage and peeling,an increase in fine fibers,and higher degree of fiber curl.These observa-tions indicated that the xylan on the fiber surface was degraded,making the structure of the fiber cell wall looser and the pores larger,which was conducive to the subsequent penetration of the bleaching solution and the removal of lignin.关键词
木聚糖酶/生物漂白/无元素氯漂白/硫酸盐浆Key words
xylanase/bio-bleaching/elemental chlorine free bleaching/kraft pulp分类
轻工纺织引用本文复制引用
曲钰,惠岚峰,郭雯雯,刘忠,宋飞飞,王清硕..高性能木聚糖酶助漂硫酸盐针叶木浆的研究[J].天津科技大学学报,2026,41(2):48-53,6.基金项目
国家重点研发计划资助项目(2022YFC2105503) （2022YFC2105503）
