食品与机械2025，Vol.41Issue(11)：28-34,7.DOI:10.13652/j.spjx.1003.5788.2025.80052
基于矿物元素指纹的黄金茶早春绿茶产地溯源
Geographical origin discrimination of Huangjincha early spring green tea by mineral element fingerprinting
摘要
Abstract
[Objective]To realize the geographical discrimination of early spring green tea of Huangjincha from major production areas in Hunan based on mineral element fingerprinting.[Methods]A total of 138 early spring green tea samples of Huangjincha from different regions in Hunan were quantitatively analyzed for 48 mineral elements using inductively coupled plasma mass spectrometry(ICP-MS).Classification models for different production areas were developed by integrating principal component analysis(PCA),orthogonal partial least squares-discriminant analysis(OPLS-DA),and Fisher's linear discriminant analysis.[Results]The PCA score plots and OPLS-DA models effectively distinguished Huangjincha samples from various production areas in Hunan.A geographical discrimination model was constructed using Fisher's linear discriminant analysis based on 10 key elements(Ba,Al,B,Sm,K,Ga,Te,Rb,Co,Eu),achieving an overall prediction accuracy of over 90%.[Conclusion]Mineral element fingerprinting can be effectively applied to the origin traceability of Huangjincha from major production areas in Hunan.关键词
黄金茶/早春绿茶/电感耦合等离子体质谱/矿物元素指纹/产地溯源Key words
Huangjincha/early spring green tea/inductively coupled plasma mass spectrometry/mineral element fingerprinting/geographical origin discrimination引用本文复制引用
钟妮,赵熙,余鹏辉,黄浩,黎娜,郑红发..基于矿物元素指纹的黄金茶早春绿茶产地溯源[J].食品与机械,2025,41(11):28-34,7.基金项目
国家现代农业产业技术体系(编号:CARS-19) （编号:CARS-19）
湖南省科技重大专项(编号:2021NK1020) （编号:2021NK1020）
中央基层农技推广体系改革与建设项目(编号:202347) （编号:202347）
