木聚糖酶的制备及其在麦草浆漂白中的应用  

Preparation of Xylanases from Aspergillus Niger and Its Application in Wheat Straw Pulp Bleaching

作　　者：冯文英[1] 李振岩[1] 常清荣[1] 梁改芹[2] 朱静[2] 严自正[2] 

机构地区：[1]中国制浆造纸研究院,北京100020 [2]中国科学院微生物研究所,北京100080

出　　处：《中国造纸》2002年第2期8-13,共6页China Pulp & Paper

基　　金：国家"九五"科技攻关项目(No.96-C03-02-03);国家自然科学基金资助项目(39600029)

摘　　要：由黑曲霉菌株制备出酸性和偏碱性的木聚糖酶,研究了酶的基本特性,优化了酶的预处理条件,并进行了麦草浆酶预处理-漂白的实验室实验和生产试验。结果表明:当漂白用氯量为5%时,酶处理浆比对照浆提高白度4.5%ISO,在达到相同的纸浆白度时,酶处理浆可节省用氯量28%。Two fungi,which produced an acid and an alkaline-stable xylanase,were isolated from soil and identified as strains of As -pergillus niger.The basic characteristics of both xylanases were studied and the conditions of pretreating wheat straw pulps with xylanases were also optimized.The results showed that enzyme-pretreated pulps can obtain higher brightness,or20%～30%of hypochlorine can be reduced at the same final brightness level.It can be predicted that xylanase has a great potential economic and environmental benefits in non-wood pulp bleaching in the near future.

关 键 词：木聚糖酶 制备 麦草浆 漂白 应用 造纸 

分 类 号：TS727[轻工技术与工程—制浆造纸工程]