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

被引：20
|
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
收藏
页码：1363 / 1367
页数：5
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