Use of headspace GC/MS combined with chemometric analysis to identify the geographic origins of black tea

Jing Yun,Chuanjian Cui,Shihua Zhang,Jiaji Zhu,Chuanyi Peng,Huimei Cai,Xiaogen Yang,Ruyan Hou

Food Chemistry（2021）

引用 70|浏览6

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摘要

•Volatile compounds were identified from 306 black teas using HS-GC/MS.•Forty-eight aroma compounds were common among global tea samples.•Full-spectrum GC/MS data was analyzed using k-Nearest Neighbor.•Discriminant rates of tea from 10 origins were 100%.•Geraniol to linalool ratio in black tea is key for identification of origin.

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关键词

Keemun black tea,Darjeeling,Kandy,Volatile compounds,Origin authentication,Aroma,HS–GC–MS,Multivariate statistical analysis

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