Method for producing traditional liquor by solid and liquid process

Abstract

The invention provides a method for producing traditional liquor by a solid and liquid process. The method comprises the following steps of a, coarsely crushing sorghums, barley, wheat, corns, rice, millets, glutinous rice, sweet potatoes or peas as raw materials, adding water in an amount which is 40 to 70 percent based on the weight of the raw materials to wet the grains, adding rice husks in an amount of 4 to 12 percent based on the weight of the raw materials for material steaming at the same time of grain wetting, and performing mixing and cooling to prepare fermented grains according to the ratio of the wetted materials steamed with the rice husks to liquor vinasse of 1:1 to 1:3 in parts by weight; b, after the temperature of the fermented grains in step a is reduced to 30 to 40 DEG C, adding traditional yeasts in an amount of 20 to 40 percent based on the weight of the raw materials and yeast mouldy bran in an amount of 2 to 8 percent based on the weight of the raw materials, and feeding the fermented grains into a vat for fermentation after uniform mixing; c, loading the fermented grains which are fermented and taken out of the vat in step b in liquid fermentation equipment, adding water in an amount which is 1 to 5 times that of the fermented grains, performing uniform stirring and intermittent ventilation stirring, and performing fermentation for 30 to 40 days; d, after fermentation in step c, performing demixing and distillation to obtain raw liquor, and storing the raw liquor; e, filtering liquid fermented broth after distillation, delivering the 50 to 75 percent of solid vinasse to step a to prepare fermented grains as liquor vinasse, and delivering filtrate to step c as process water.

Description

technical field [0001] The invention relates to the technical field of bioengineering, in particular to a method for producing traditional liquor by a solid-dilution process combining traditional solid-state fermentation and modern liquid-state culture technology. Background technique [0002] Today, with the rapid development of the liquor industry, the development of traditional solid-state winemaking technology has encountered a bottleneck. Solid-state fermentation is difficult to keep up with the ever-changing development of the fermentation industry due to its poor mass transfer, uneven nutrients, difficult detection of various parameters, poor reproducibility, unstable quality, and high labor intensity. Therefore, there is an urgent need for a new technology to integrate advanced liquid fermentation technology into liquor brewing, so as to meet people's mechanization, automation, intelligence and diversified needs of the liquor industry. [0003] Therefore, in line wi...

AI Technical Summary

Problems solved by technology

Solid-state fermentation is difficult to keep up with the ever-changing development of the fermentation industry due to its poor mass transfer, uneven nutrients, difficult detection of various parameters, poor reproducibility, unstable quality, and high labor intensity.