Research on quality grading of Luzhou flavor Baijiu based on big data and multi substance coordination

  • ZHANG Guiyu ,
  • YAN Jun ,
  • WANG Yibo ,
  • XIANG Xingrui ,
  • ZHANG Lei ,
  • ZHANG Yunlong
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  • 1(School of Automation & Information Engineering, Sichuan University of Science & Engineering, Yibin 644000, China)
    2(Intelligent Perception and Control Key Laboratory of Sichuan Province, Sichuan University of Science & Engineering, Yibin 644000, China)
    3(Solid-state Brewing Technology Innovation Center of Sichuan, Luzhou 646000, China)
    4(Liquor Making Biotechnology and Intelligent Manufacturing of Key Laboratory of China National Light Industry, Yibin 644000, China)

Received date: 2024-12-05

  Revised date: 2025-04-02

  Online published: 2025-12-25

Abstract

Various volatile substances in the base Baijiu are crucial to the quality of Chinese Baijiu.The volatile substances in Baijiu are complex in composition, in which a single substance has an insignificant effect on the quality of the base Baijiu, while a variety of substances coordinated together may have a great impact on the quality of the Baijiu.In this study, gas chromatography-mass spectrometry was used to analyze the volatile substances in Baijiu, and 89 major volatile compounds were identified to investigate and analyze the quality grade of Baijiu based on multi-substance coordination.Spearman-interaction features, maximum mutual information method-interaction feature, information gain ratio algorithm-interaction feature, and feature weight algorithm-interaction feature were combined to investigate the effect of multi-substance coordination on the quality of base Baijiu in Baijiu, and to screen out the most influential combination of coordinated substances.At the same time, all the feature combinations were trained in the model, the key substances were screened independently, and support vector machine, random forest, and extreme gradient boosting were used to discriminate the grade of Baijiu.It was found that the key substances screened independently had a general effect on the quality grade of Baijiu.In contrast, the feature combinations based on the coordinated screening of multi-substances had good effects, among which the random forest based on the fusion analysis of Spearman’s positive and negative correlation had the best effect in terms of accuracy.The accuracy of random forest based on Spearman’s positive and negative correlation fusion analysis was the best, reaching more than 94%, which effectively distinguished the quality grades of different Baijius.

Cite this article

ZHANG Guiyu , YAN Jun , WANG Yibo , XIANG Xingrui , ZHANG Lei , ZHANG Yunlong . Research on quality grading of Luzhou flavor Baijiu based on big data and multi substance coordination[J]. Food and Fermentation Industries, 2025 , 51(23) : 123 -132 . DOI: 10.13995/j.cnki.11-1802/ts.041785

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