Method for measuring chromaticity of vinasse

Abstract

The invention relates to a method for measuring the chromaticity of vinasse, and belongs to the technical field of analysis and detection. The technical problem to be solved is to provide a method for measuring the chromaticity of the vinasse more accurately. The method for measuring the chromaticity of the vinasse comprises the following steps of: a, preparing standard liquid for determining the chromaticity, then diluting the standard liquid into a series of solution with different chromaticities, measuring absorbance values of the series of solution with different chromaticities in a wavelength the range of 300 to 330nm, and making a standard curve, wherein the standard curve equation is Y=e*X+f, e and f are coefficients in the standard curve equation, X is a colorimetric value and Y is the absorbance value; and b, weighing M grams of vinasse and soaking the vinasse into N ml of solvent, filtering, measuring an absorbance value of obtained filtrate in the wavelength range of 300 to 330nm, and calculating the colorimetric value D of the filtrate according to the standard curve equation in the step a so as to obtain the average chromaticity of the vinasse according to the formula that the average chromaticity is equal to D*N / M, wherein the unit of the average chromaticity is degree / gram.

Description

Method for measuring color of distiller's grains technical field The invention relates to a method for measuring the chroma of distiller's grains, and belongs to the technical field of analysis and detection. Background technique In solid-state brewing and production of liquor, sensory evaluation is an important means to analyze the quality of distiller's grains, and sensory inspection relies on the sensory organs of inspectors to evaluate or judge product quality. Generally, people's own organs or simple tools are used to check the product's color, taste, shape, sound, touch, vision and other sensations to qualitatively judge its quality characteristics. Some people call it "a science that is not science". Among them, observing the color of distiller's grains is an important content of sensory evaluation and analysis of distiller's grains. Generally, the normal cellar-entry distiller's grains are yellowish-brown, and the cellar-exited distiller's grains are fresh pig liv...

AI Technical Summary

Problems solved by technology

So far, there is no relevant report on the method that can accurately measure the chroma of distiller's grains

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