食品与机械2024，Vol.40Issue(5)：161-167,233,8.DOI:10.13652/j.spjx.1003.5788.2023.81014
基于GC-IMS技术的不同产地青钱柳茶挥发性成分表征及分析
Characterization and analysis of the volatile components of Cyclocarya paliurus tea from different origins based on GC-IMS technology
摘要
Abstract
Objective:To investigate the differences in volatile odor substances of Cyclocarya paliurus tea from different origins.Methods:Taking Cyclocarya paliurus tea from Changde,Zhangjiajie,Shaoyang in Hunan,Xiushui in Jiangxi,Qiandongnan in Guizhou,and Enshi in Hubei as the research subjects,the gas chromatography-ion mobility spectrometry(GC-IMS)coupled with partial least squares discriminant analysis(PLS-DA)was used to investigate the characteristics of different volatiles and their similarities in green strychnine teas from different origins.Results:A total of 120 VOCs,including monomers of some substances and their polymers,were detected in Cyclocarya paliurus tea from different origins,which were 34 aldehydes,21 olefins,19 alcohols,16 ketones,10 esters,8 carboxylic acids,5 furans,4 pyrazines,2 ethers,and 1 benzene species,respectively.Among them,γ-pinene,styrene,4-methyl-1-pentanol,and n-octanal were the main characteristic difference volatiles.Conclusion:There were some differences in the volatile organic compounds of Cyclocarya paliurus tea among different origins(P＜0.05).It is possible to distinguish between different origins of cymbopogon tea based on the characteristic volatile substances.GC-IMS technology can effectively realize the origin identification and quality control of GC tea.关键词
青钱柳茶/挥发性物质/气相色谱—离子迁移谱/偏最小二乘判别/主成成分析Key words
Cyclocarya paliurus tea/volatile substances/gas chromatography-ion mobility spectrometry(GC-IMS)/partial least squares discriminant analysis(PLS-DA)/dynamic principal component analysis引用本文复制引用
罗洁,邹雅倩,田星..基于GC-IMS技术的不同产地青钱柳茶挥发性成分表征及分析[J].食品与机械,2024,40(5):161-167,233,8.基金项目
湖南中医药大学本科生科研创新基金计划(编号:2023BKS105,2023BKS190) （编号:2023BKS105,2023BKS190）
湖南中医药大学学科建设"揭榜挂帅"项目(编号:22JBZ053) （编号:22JBZ053）
