微生物产生的木聚糖酶的功能和应用

Functions and Applications of Microbial Xylanase

木聚糖是一种异质多糖,主要由木糖和阿拉伯糖组成。微生物产生的木聚糖酶来源广泛,能将木聚糖水解为木寡糖和D-木糖。该酶具有极大的应用价值,如可用于纸浆的漂白以减少环境污染,也可将造纸工业及农业废料中的木聚糖转化为D-木糖。

Xylans are heteropolymers consisting principally of xylose and arabinose. Mi-crobial xylanases occur in various microorganisms and can hydrolyze xylans into xy-looligosaccharides and D-xylose. The industrial applications of the microbial xylanases include mainly two aspects,one is the enhancing of pulp bleaching so as to reduce the environment pollution and the other is the conversion of xylan to D-xylose in the wastes of the paper-pulp industry and agriculture.