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微生物木聚糖酶及在食品工業(yè)中的應(yīng)用
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    摘要:

    木聚糖是植物半纖維素的主要成分,，是一種復(fù)雜的多聚五碳糖,。木聚糖酶（xylanase,，EC 3.2.1.8）以內(nèi)切方式作用于木聚糖主鏈,，產(chǎn)生不同鏈長的寡糖及少量的木糖,，是木聚糖降解酶系中最關(guān)鍵的酶。微生物木聚糖酶在食品,、飼料等行業(yè)均有廣泛的應(yīng)用前景,，而其產(chǎn)生的關(guān)鍵是適合的誘導(dǎo)底物及培養(yǎng)條件。不同微生物來源的木聚糖酶特性不同,，因而在各領(lǐng)域具有不同的應(yīng)用特點(diǎn),。本文綜述了木聚糖的結(jié)構(gòu)，微生物木聚糖酶的產(chǎn)生,、特性及其應(yīng)用,。

    Abstract:

    Xylan is the major constituent of hemicellulose. 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. A large number of bacteria and fungi are known to produce xylanases. Xylanases from microorganisms have attracted a great deal of attention in recent years because of their biotechnological potential application in various industrial processes such as food and feed industries. An important factor for efficient xylanase production is the choice of an appropriate inducing substrate, as well as optimization of the medium composition. Properties of xylanases are different due to various microorganisms. The highlights complex xylan structure, microbial xylanolytic enzymes including their production, properties and their application in industries was reviewed.

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李秀婷.微生物木聚糖酶及在食品工業(yè)中的應(yīng)用[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2008,39(2):175-179.[J]. Transactions of the Chinese Society for Agricultural Machinery,2008,39(2):175-179.

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