聚类分析在不同年份特香型白酒中的应用

Application of Clustering Analysis in the Identification of Different Vintage Texiang Baijiu Products

本实验目的在于使特香型年份白酒的评定标准更加科学化、数据化、程序化,不再单纯的依靠感官品评判断白酒质量。本实验选取四特酒A(五年成品酒)、B(九年成品酒)、C(十五年成品酒)、D(二十年成品酒)4类年份白酒各5个成品酒样品,从特香型年份白酒气相色谱(gas chromatography,GC)图谱中筛选出17个特征指纹峰用于构建指纹图谱,本实验采用SPSS 22.0统计分析软件中的系统聚类分析对不同年份类型白酒指纹图谱进行鉴别,得出与实际感官品评类似的结果,总体上可以区分特香型年份白酒的档次。说明聚类分析可以用来鉴别不同年份的特香型白酒。

The purpose of this experiment is to make the evaluation standard of vintage Texiang Baijiu more scientific,data-based and programmatic,and no longer relying solely on sensory evaluation.We selected four types of vintage Texiang Baijiu(A:five years,B:nine years,C:fifteen years,and D:twenty years),and selected five samples from each type as the research objects.Seventeen characteristic fingerprint peaks were screened from the gas chromatographic spectrum of the samples,and the fingerprint spectrum was constructed.The hierarchical clustering analysis mode of SPSS 22.0 statistical analysis software was used to identify the fingerprints of each type of vintage Texiang Baijiu.The clustering results were similar to the sensory evaluation results.In general,the grades of vintage Texiang Baijiu could be distinguished.This study shows that clustering analysis can be applied in the identification of vintage Texiang Baijiu products.