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中文摘要：
木聚糖（Xylan）是植物半纤维素的主要成分,是一种复杂的多聚五碳糖。木聚糖酶（Xylanase,EC 3.2.1.8）以内切方式作用于木聚糖主链,产生不同链长的寡糖和少量的木糖,是木聚糖降解酶系中最为关键的酶。本文综述了微生物木聚糖酶系统、微生物木聚糖酶的分类及其来源分布、微生物木聚糖酶的特性、产生及在食品、造纸、饲料行业的应用。
英文摘要：
Xylan is the major constituent of hemicelluloses.Due to the structural heterogeneity of the xylans,xylan-degrading enzyme systems include several hydrolytic enzymes.Xylanase（EC 3.2.1.8,1,4-β-D-xylanase）can hydrolyze β-1,4-glycosidic linkages of the xylan backbone to produce short chain xylooligosacchrides of various lengths.Hence,endo-β-xylanase is the crucial enzyme component of microbial xylanolytic enzyme systems.And the microorganism xylanases system,classification,source and distribution were summarized.The microorganism xylanases including their properties,production and their applications in food,papermaking,feed industries were reviewed.
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