A preparing method of a pit mud fermentation promoter and a method of producing pit mud by using the promoter

Abstract

A preparing method of a pit mud fermentation promoter and a method of producing pit mud by using the promoter are disclosed. The promoter is prepared by utilizing a medium adopting soybean meal as a main raw material and bran as an auxiliary, and by steps of inoculating aroma-producing yeast, neutral protease and bacillus subtilis and culturing. The promoter is a biological promoter added in an artificial pit mud culture process. The pit mud production method in which the promoter and a composite multifunctional strain solution are synergistic can improve nutrients and active compounds of pit mud, can promote growth of beneficial functional bacteria, can improve acid production capability of caproic acid bacteria, can improve the pit mud environments and can improve water retention performance, ageing resistance and the like.

Description

technical field [0001] The invention belongs to the technical field of brewing biology, and in particular relates to a method for preparing a pit mud fermentation accelerator and a method for using the accelerator to produce pit mud. Background technique [0002] The quality of Luzhou-flavor liquor depends largely on the quality of the pit mud, which determines the quality of the wine and directly affects the style characteristics of Luzhou-flavor liquor and the balance and coordination of flavor substances. Pit mud inhabits a variety of microbial communities dominated by caproic acid bacteria and archaea. The symbiotic relationship between caproic acid bacteria and archaea promotes the synthesis of ethyl caproate in Luzhou-flavor liquor, so the cultivation of pit mud The quality determines the richness and vigor of caproic acid bacteria and biome. For now, in the production of Luzhou-flavor liquor, there are microbial nutrient media mainly using inorganic salts, such as ca...

AI Technical Summary

Problems solved by technology

For now, in the production of Luzhou-flavor liquor, there are microbial nutrient media mainly using inorganic salts, such as calcium carbonate, magnesium sulfate, ammonium phosphate, and dipotassium hydrogen phosphate. Under acidic environment conditions in the pit, it is easy to form lactic acid salts and chromatographically come out, which makes the pit mud harden and age, the activity of caproic acid bacteria is low, and the ability to produce caproic acid is poor. Based on this point, it is necessary to explore and summarize methods to improve the quality of artificial pit mud , improve the pit mud formula to increase nutritional vitality

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