A kind of detection method of yellow rice wine wine age

Abstract

The invention discloses a method for detecting the wine age of yellow rice wine. Its steps are as follows: 1) use the electrode array of the rice wine age detector to react with the rice wine to obtain a response signal; 2) detect the pH value, conductivity and total sugar content of the tested sample; 3) test the rice wine age detector Select and extract eigenvalues ​​from the original data; 4) use the eigenvalues ​​as the response signal of the electrode array, apply the eigenvalues ​​to establish the principal component analysis and cluster analysis pattern recognition model, and combine the pH value, conductivity and total sugar content to analyze the 5) Reduce the dimensionality of the eigenvalues ​​through principal component analysis, use the data after dimensionality reduction as the independent variable of partial least squares regression and artificial neural network to establish a prediction model, apply partial least squares regression and artificial neural network Quantitative prediction and analysis of rice wine age by network. The invention simplifies the experimental steps, reduces the interference, and greatly improves the sensitivity, reliability and repeatability.

Description

technical field [0001] The invention relates to a detection method, in particular to a detection method for rice wine age. Background technique [0002] Rice wine is a brewed wine made from rice, millet, corn, millet, wheat, etc., after cooking, adding koji, saccharifying, fermenting, pressing, filtering, decocting, storing, and blending. Yellow rice wine has a unique fragrance, its own style, and has high nutritional value, so it is deeply loved by the masses. [0003] However, there are many so-called "five-year-old wines" and "ten-year-old wines" that pretend to be high-aged wines with low wine ages in the commercially available rice wine. How to quickly and accurately detect the wine age of yellow rice wine and protect the rights and interests of consumers from infringement has become an urgent problem to be solved. At present, high-performance liquid chromatography, capillary or mass spectrometry and other analytical techniques combined with chemometric methods are...

AI Technical Summary

Problems solved by technology

At present, high-performance liquid chromatography, capillary or mass spectrometry and other analytical techniques combined with chemometric methods are often used to detect the age of yellow rice wine. However, the operation process is complicated and the sample pretreatment time is long, so it is not suitable for rapid analysis; In recent years, near-infrared spectroscopy has also been applied to the field of wine age detection. Its samples do not require pretreatment and can measure multiple components at the same time. It is a fast non-destructive testing method, but the test sensitivity is relatively low. There are large constraints in the determination of

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