Aspergillus niger fungus and its application in production of Pu'er tea

Abstract

An Asperfillus niger Pasp 0501 (CGMCC No.1373) is prepared through providing bacterial seeds and auxiliaries, screening, screening again, culturing in natural culture medium, and purifying culture. It can be used in the production of Pu'er tea for increasing the contents of theapolyose and bisterin and shortening productive period.

Description

Technical field: [0001] The invention relates to an Aspergillus niger fungus and its application in the production of Pu'er tea, which belongs to the field of biotechnology. Background technique: [0002] As we all know, Aspergillus (Aspergillus) is more often found in fermented foods. It is a kind of strain producing complex enzymes, which can produce amylase, protease, pectinase, glucoamylase, cellulase, phytase, etc. for industrial production. . They can also produce lysozymes used to eliminate arterial and venous thrombosis. Some strains can produce a variety of organic acids such as citric acid, malic acid, fumaric acid and so on. [0003] During the large-scale production of Pu'er tea, the strain can secrete enzymes to act on the substrate. Under the action of amylase, the amylose in the raw material is degraded into dextrin and various low-molecular sugars, such as maltose, glucose, etc., and under the action of protease, the non-digestible macromolecular protein i...

AI Technical Summary

Problems solved by technology

However, how to improve the quality of Pu’er tea through the research of microorganisms in Yunnan Pu’er tea processing, and screening beneficial and dominant microbial strains from Pu’er tea processing for production has not yet been published in the literature.