Aspergillus aculeatus strain and application thereof

Abstract

The invention relates to an aspergillus aculeatus strain and application thereof, and belongs to the technical field of fermentation engineering and biology. The preservation name of the aspergillus aculeatus strain is (Aspergillus sp.) BG30, the preservation department is China microorganism culture preservation management committee common microorganism center, the preservation data is June 28th, 2013, and the preservation number is CGMCC NO.7799. During fermentation of the aspergillus aculeatus strain, the enzymatic activity of ectoenzyme beta-glucosidase is high, by-products are few, the beta-glucosidase is prone to separation and purification, the separation and purification cost is low, and therefore the fact that the aspergillus aculeatus strain serves as original strain to ferment and produce beta-glucosidase facilitates industrial production.

Description

technical field [0001] The invention relates to an Aspergillus aculeatus strain and an application thereof, belonging to the fields of fermentation engineering and biotechnology. Background technique [0002] β-Glucosidase (β-Glucosidase, EC 3.2.1.21), also known as β-D-glucoside glucohydrolase, can hydrolyze the non-reducing β-D-glucosidic bond bound to the terminal and release β -D-glucose and corresponding ligands, this enzyme exists in many plants, and also exists in some yeasts, molds, Trichoderma, bacteria and even insects. β-glucosidase can hydrolyze the flavor precursor β-glucoside in fruits, vegetables and tea into aroma substances with strong natural flavor. [0003] β-glucosidase can be used in a wide range of fields: it can be used in the fruit juice industry for flavor enhancement and debitterness. Many fruit juices contain a lot of flavor precursors - β-glucosides. As long as these glycosides can be combined through the action of some enzymes Base volatilizat...

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