Method of preparing heat-proof xylanase, heat-proof beta-xylosidase or heat-proof beta-glucosidase
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA AGRI UNIV
- Publication Date
- 2009-12-30
- Estimated Expiration
- Not applicable · inactive patent
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Abstract
Description
technical field
[0001] The invention relates to a method for preparing heat-resistant xylanase, heat-resistant β-xylosidase or heat-resistant β-glucosidase. Background technique
[0002] Xylanase (Xylanase, EC 3.2.1.8) is an important class of hydrolase, which mainly acts on the β-1,4-glucosidic bond on the main chain of xylan in an endo-cutting manner, and the hydrolyzed products are mainly Oligosaccharides and xylose. At present, there are relatively many studies on xylanase of thermophilic fungi abroad. Haltrich et.al. (Enzyme Microb. Technol. 15: 854-860) used Schizophylum commune BT2115 to ferment microcrystalline cellulose as a carbon source. The carbohydrase activity reached 4839U / mL fermentation broth, which is the highest level reported so far for xylanase produced by liquid fermentation. There have been some research reports on fungal xylanase production in China, but there are few research reports on fungal xylanase production and thermophilic fungal strains. L...