Biobleaching effect of xylanase preparation from an alkalophilic Bacillus sp on ramie fibers

被引：22

作者：

Zheng, LS ^{[1
]}

Du, YM ^{[1
]}

Zhang, JY ^{[1
]}

机构：

[1] Wuhan Univ, Coll Chem & Environm Sci, Wuhan 430072, Peoples R China

来源：

BIOTECHNOLOGY LETTERS | 2000年 / 22卷 / 17期

基金：

中国国家自然科学基金;

关键词：

alkalophilic Bacillus sp; biobleaching; ramie fibers; xylanase;

D O I：

10.1023/A:1005682112036

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

Cellulase-free xylanase from an alkalophilic Bacillus sp. was maximally active at pH 10 and 60 degrees C. Enzyme treatment of ramie fibers removed 40% of its hemicellulose and some chromophoric material which resulted in a brightness increment of 5.2% and boosted the effect of H2O2 bleaching. Enzyme-treated ramie fibers were increased by 3.9% in elongation and retained appropriate tenacity. X-ray and scanning electron micrograph studies revealed some changes in fiber structure.

引用

页码：1363 / 1367

页数：5

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