A comparative analysis of chemical compositions in Camellia sinensis var. puanensis Kurihara, a novel Chinese tea, by HPLC and UFLC-Q-TOF-MS/MS
A comparative analysis of chemical compositions in Camellia sinensis var. puanensis Kurihara, a novel Chinese tea, by HPLC and UFLC-Q-TOF-MS/MS
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茶树化学成分的比较分析
DOI：
10.1016/j.foodchem.2016.08.017
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发表时间：
2017-02-01
期刊：
影响因子：
8.8
通讯作者：
He, Rong-Rong
中科院分区：
文献类型：
--
作者：
Li, Yi-Fang;Ouyang, Shu-Hua;He, Rong-Rong
茶树普安茶（puanensisKurihara）是中国贵州普安县江西坡及周边地区新发现的一种古老茶树。那里的人们一直认为，喝普安茶有利于促进健康和预防疾病。然而，关于其成分的详细信息尚未报告。因此，本研究采用高效液相色谱法（HPLC）和超高效液相色谱-飞行时间质谱法（UFLC-Q-TOF-MS/MS）对普安茶中嘌呤类生物碱和多酚类物质的种类和含量进行了鉴定和测定。同时，普安茶中含有B型原花青素二聚体、三聚体和二聚体单没食子酸酯，而在茶树、毛叶茶和阿萨姆茶中未检测到。kucha。研究结果可为普安茶在当地的保健和营养用途提供依据，并为茶叶品种的研究提供参考。(C)2016爱思唯尔有限公司版权所有
Camellia sinensis var. puanensis Kurihara (Puan tea) is a kind of ancient tea plant newly found in Jiangxipo and the surrounding areas of Puan County (Guizhou, China). People there always believe that drinking Puan tea is beneficial to the promotion of health and prevention of diseases. However, detailed information on its compositions has not been reported. Therefore, in this study, the varieties and contents of purine alkaloids and polyphenols in Puan tea were identified and determined by HPLC and UFLC-Q-TOF-MS/MS. Our results showed that theacrine, but not caffeine, was the dominated purine alkaloid detected in Puan tea. Meanwhile, Puan tea contained B-type procyanidin dimer, trimer and dimer monogallate, which were not detected in Camellia sinensis, Camellia ptilophylla and Camellia assamica var. kucha. The obtained results could support the local uses of Puan tea in health and nutrition and contribute to the research of tea variety. (C) 2016 Elsevier Ltd. All rights reserved.