Method for testing alcohol content of discharged fermented grains used for producing strong aromatic Chinese spirit

Abstract

The invention relates to a method for testing the alcohol volume of the discharged fermented grains used for producing strong aromatic Chinese spirit and belongs to the technical field of detection techniques. The technical problem to be solved by the invention is to provide the method for quickly testing the alcohol volume of the discharged fermented grains used for producing strong aromatic Chinese spirit. The method for testing the alcohol volume of the discharged fermented grains used for producing strong aromatic Chinese spirit comprises the following steps: a, soaking the discharged fermented grains in water, filtering, and testing the density Rho of the filtrate; and b, calculating the alcohol volume Y of the discharged fermented grains according to an equation expressed as Y=-794.417Rho+792.515 when the density Rho of the filtrate is less than or equal to 1.000g / ml and according to an equation expressed as Y=-3.458.729+3475.178 when the density Rho of the filtrate is more than1.000g / ml and determining the alcohol volume of the discharged fermented grains is 0 when Y is less than or equal to 0, wherein the unit of the density Rho of the filtrate is g / ml.

Description

technical field [0001] The invention relates to a method for measuring the alcohol content of Luzhou-flavor liquor left in pits, and belongs to the technical field of detection. Background technique [0002] Chinese liquor has a history of thousands of years of development. As a unique wine in my country, it has a long traditional history. It is unique in the world's hard alcohol products and is one of the six major distilled wines in the world. Since the reform and opening up, my country's liquor has developed by leaps and bounds. The scale of famous and high-quality wineries has continued to grow, and the production capacity has continued to increase. The scale of Luzhou-flavor liquor, which accounts for as much as 70% of the market share, has continued to expand. . In the production process of Luzhou-flavor liquor, in order to understand the utilization rate of starch in each cellar's grains and the alcohol fermentation, it is necessary to analyze the out-of-pit grains of...

AI Technical Summary

Problems solved by technology

[0003] At present, the method for measuring the alcohol content of Luzhou-flavor liquor's distilled grains is as follows: take 100.0g of distilled grains and add 250ml of water, distill 95ml, add water to make up to 100ml, and use a glass alcohol meter to measure the alcohol content of the distillate, which takes a long time to distill. The distillation time of each sample is more than 30 minutes, which consumes a lot of power and occupies the experimental space, especially when there are many samples of fermented grains to be tested.

However, the number of samples of fermented grains is limited each time, which invisibly increases the labor intensity of the experiment, and the measurement error or failure to measure the actual alcohol content of fermented grains in time will have a certain impact on production.

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