基于指纹图谱和化学计量学的浓香型白酒分类研究  

Classification of strong-flavor Baijiu based on fingerprint and stoichiometry

作　　者：钱宇 胡雪 孙跃 李锦松 黄志久 李丹 张怀山 康峰豪 林莉[5] QIAN Yu;HU Xue;SUN Yue;LI Jinsong;HUANG Zhijiu;LI Dan;ZHANG Huaishan;KANG Fenghao;LIN Li(Luzhou Laojiao Group Co.,Ltd.,Luzhou 646000,China;College of Chemical Engineering,Sichuan University of Science&Engineering,Zigong 643000,China;College of Chemical Engineering,Sichuan University,Chengdu 610000,China;College of Bioengineering,Sichuan University of Science&Engineering,Zigong 643000,China;Liquor Making Bio-Technology&Application of Key Laboratory of Sichuan Province,Zigong 643000,China)

机构地区：[1]泸州老窖集团有限责任公司,四川泸州646000 [2]四川轻化工大学化学工程学院,四川自贡643000 [3]四川大学化工学院,四川成都610000 [4]四川轻化工大学生物工程学院,四川自贡643000 [5]酿酒生物技术及应用四川省重点实验室,四川自贡643000

出　　处：《中国酿造》2021年第6期152-156,共5页China Brewing

基　　金：四川省科技计划项目(2019YJ0698);酿酒生物技术及应用四川省重点实验室项目(NJ2015-09);四川轻化工大学大学生创新创业项目(CX2019104)。

摘　　要：该研究以市售畅销的7个品牌、不同等级的浓香型白酒为研究对象,利用气相色谱-质谱联用(GC-MS)技术建立了浓香型白酒中风味成分的指纹图谱,结合相似度分析、主成分分析(PCA)和判别分析(DA)对不同品牌的浓香型白酒样品进行了有效区分和鉴别。结果表明,不同品牌间样品的相似度存在一定差异;PCA表明前三个主成分累计方差贡献率达到89.71%,能对样品进行聚类和区分;利用判别分析可以将不同产地的酒样区分开,正确率为100%。综上,相同品牌不同等级的白酒具有明显的相关性,不同品牌白酒可以利用指纹图谱结合化学计量学方法进行鉴别和分类,为白酒质量控制及真伪鉴定提供了一种新方法。In this study,using seven popular brands of strong-flavor Baijiu(Chinese liquor)with different quality levels as the research objects,the fingerprint of strong-flavor Baijiu flavor ingredients was established by GC-MS.Combined with similarity analysis,principal component analysis(PCA)and discriminant analysis(DA),different brands of strong-flavor Baijiu were effectively distinguished and identified.The results showed that there were some differences among different brands in similarity.PCA showed that the cumulative variance contribution rate of the first three principal components reached 89.71%,which could be used to cluster and distinguish the samples.By discriminant analysis,the Baijiu samples from different regions could be distinguished,and the accuracy was 100%.To sum up,different quality levels of Baijiu of the same brand had obvious correlation.Different brands of Baijiu could be identified and classified by fingerprint and stoichiometry.The study provided a new method for Baijiu quality control and authenticity identification.

关 键 词：浓香型白酒 气相色谱-质谱联用 相似度分析 主成分分析 判别分析 

分 类 号：O657.63[理学—分析化学] TS262.3[理学—化学]