DESCRIPTION

Xylanase XY22L is produced by submerged fermentation of Trichoderma reesei followed by purification and formulation. Xylanase is able to degrade xylan in barley, malt or other adjuncts to increase extract yield, reduce wort viscosity, ease wort filtration and ensure brewhouse efficiency. Therefore, the enzyme is widely used in brewing.

MECHANISM

As the main component of barley embryo cell wall, xylan is made up of xylose unit linked with β-1,4 glycosidic bond, besides the xylose residual there are many substitutions with big chemical groups along the backbone. The complete hydrolysis of xylan needs different enzymes to work synergistically, where β-1,4 -endo-xylanase plays a key role in degrading xylan into oligoxylans of different chain length and small amount of xylose. Xylan is the major responsible for wort viscosity, and degradation of the xylan leads to the great reduction of viscosity and easy wort filtration.

REACTION PARAMETERS

PRODUCT SPECIFICATION

** Color: Color can vary from batch to batch. Color intensity is not an indication of enzyme activity.

PRODUCT STANDARD

The product complies with GB1886.174.

No.	ITEMS		INDEX
1	Bulk density/(g/ml)		1.10-1.25
2	pH/(25℃)		4.0-6.0
3	Lead/(mg/kg)		≤5.0
4	Arsenic/(mg/kg)		≤3.0
5	Total viable count/(CFU/mL)		≤50,000
6	Coliform Bacteria/(CFU/mL)		≤30
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