您好，欢迎访问中国农业科学院 机构知识库！

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Effects of Geographical Origin and Tree Age on the Stable Isotopes and Multi-Elements of Pu-erh Tea

文献类型： 外文期刊

作者： Chen, Ming-Ming 1 ; Liao, Qiu-Hong 1 ; Qian, Li-Li 2 ; Zou, Hai-Dan 1 ; Li, Yan-Long 1 ; Song, Yan 1 ; Xia, Yu 1 ; Liu, Yi 1 ; Liu, Hong-Yan 1 ; Liu, Ze-Long 3 ;

作者机构： 1.Chinese Acad Agr Sci, Chengdu Natl Agr Sci & Technol Ctr, Inst Urban Agr, Chengdu 610213, Peoples R China

2.Heilongjiang Bayi Agr Univ, Coll Food Sci, Daqing 163319, Peoples R China

3.Beijing Technol & Business Univ, China Food Flavor & Nutr Hlth Innovat Ctr, Beijing 102488, Peoples R China

关键词： geographical origin; pu-erh tea; tree ages; mineral elements; stable isotope

期刊名称：FOODS （ 影响因子：5.2； 五年影响因子：5.5 ）

ISSN：

年卷期： 2024 年 13 卷 3 期

页码：

收录情况： SCI

摘要： Pu-erh tea is a famous tea worldwide, and identification of the geographical origin of Pu-erh tea can not only protect manufacture's interests, but also boost consumers' confidence. However, tree age may also influence the fingerprints of Pu-erh tea. In order to study the effects of the geographical origin and tree age on the interactions of stable isotopes and multi-elements of Pu-erh tea, 53 Pu-erh tea leaves with three different age stages from three different areas in Yunnan were collected in 2023. The delta C-13, delta N-15 values and 25 elements were determined and analyzed. The results showed that delta C-13, delta N-15, Mg, Mn, Fe, Cu, Zn, Rb, Sr, Y, La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu had significant differences among different geographical origins (p < 0.05). Mn content was significantly influenced by region and tree age interaction. Based on multi-way analysis of variance, principal component analysis and step-wised discriminant analysis, 24 parameters were found to be closely related to the geographical origin rather than tree age, and the geographical origin of Pu-erh tea can be 100.0% discriminated in cross-validation with six parameters (delta C-13, delta N-15, Mn, Mg, La, and Tb). The study could provide references for the establishment of a database for the traceability of Pu-erh tea, and even the identification of tea sample regions with different tree ages.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：中国农业科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台