Pure draft beer film cleaning and regenerating enzyme preparation and cleaning method using same

Abstract

The invention discloses a pure draft beer film cleaning and regenerating enzyme preparation and a cleaning method using the same. The film cleaning and regenerating enzyme preparation designed according to the pure draft beer film plug substance composition comprises the following components: cleaning and regenerating enzyme I: 40-80% of pentosan enzyme (10000U / g), 10-50% of beta-glucanase (20000U / g) and 2-20% of mannase (10000U / g); and cleaning and regenerating enzyme II: 40-80% of proline endoproteinase (5U / g) and 20-60% of neutral proteinase (100000U / g). The optimized pure draft beer film cleaning and regenerating method comprises the following steps: conventional water washing and alkaline-process cleaning; cyclic cleaning by an enzyme process while keeping the temperature; impregnated cleaning by an enzyme process; water washing; alkaline-process cleaning; and integrity testing. The film cleaning and regenerating enzyme disclosed by the invention effectively solves the problem of film flux depression caused by the pure draft beer film plug substance, and enhances the film regeneration power and pure draft beer filtration capacity by more than 35%.

Description

technical field [0001] The invention belongs to the field of fermentation engineering, relates to the beer fermentation production industry, in particular to a pure draft beer membrane cleaning regeneration enzyme preparation and a cleaning method. Background technique [0002] In the production of pure draft beer, the low-temperature microporous membrane filtration sterilization process is used to replace the traditional pasteurization process, which makes the beer taste fresher, purer and more nutritious, and is favored by consumers. The key to pure draft beer production technology is aseptic brewing, aseptic filtration and aseptic filling, and microporous membrane filtration technology is the core of pure draft beer production. Membrane filtration system for pure draft beer. At present, breweries at home and abroad generally use two sets of filtration systems, coarse and final, to filter sake. Using its fine physical filtration characteristics (coarse filtration 0.65 μm, ...

AI Technical Summary

Problems solved by technology

For example, Chinese patent CN 100503818C has invented a kind of ultrafiltration membrane cleaning enzyme used in the fruit and vegetable juice ultrafiltration concentration process and a production method for improving the flux of the ultrafiltration membrane. , hemicellulose, protein, etc., pectinase, cellulase, hemicellulase, protease and other components are designed to decompose the retained substances on the surface of the membrane, improve the cleaning effect of chemical cleaning agents, improve the membrane flux, and solve the problem of fruit and vegetable Problems of ultrafiltration membrane clogging, membrane fouling, and reduction of membrane processing capacity in the production of juice concentration