Xylanase

Xylanase

Xylanase (EC 3.2.1.8, endo-(1->4)-beta-xylan 4-xylanohydrolase, endo-1,4-xylanase, endo-1,4-beta-xylanase, beta-1,4-xylanase, endo-1,4-beta-D-xylanase, 1,4-beta-xylan xylanohydrolase, beta-xylanase, beta-1,4-xylan xylanohydrolase, beta-D-xylanase) is the name given to a class of enzymes which degrade the linear polysaccharide beta-1,4-xylan into xy

Introduction

Xylanase (EC 3.2.1.8, endo-(1->4)-beta-xylan 4-xylanohydrolase, endo-1,4-xylanase, endo-1,4-beta-xylanase, beta-1,4-xylanase, endo-1,4-beta-D-xylanase, 1,4-beta-xylan xylanohydrolase, beta-xylanase, beta-1,4-xylan xylanohydrolase, beta-D-xylanase) is the name given to a class of enzymes which degrade the linear polysaccharide beta-1,4-xylan into xylose,thus breaking down hemicellulose, one of the major components of plant cell walls. As such, it plays a major role in micro-organisms thriving on plant sources for the degradation of plant matter into usable nutrients. Xylanases are produced by fungi, bacteria, yeast, marine algae, protozoans, snails, crustaceans, insect, seeds, etc., (mammals do not produce xylanases). However, the principal commercial source of xylanases is filamentous fungi.


Functions and Applications

(1)  Degrading xylans, thus efficiently decreasing chyme mucosity.

(2)  Enhancing chyme passing through intestinal tracts, thus increasing feed intake and production performance of livestock and poultry.

(3)  Breaking down the structure of cell walls and releasing the inside nutrients, thus increasing the utilization efficiency of feedstuff.

(4)  Increasing the activity of endogenous digestive enzymes, thus enhancing digestibility of animals.

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