福建农业学报2018，Vol.33Issue(1)：21-28,8.DOI:10.19303/j.issn.1008-0384.2018.01.005
乌龙茶和绿茶品种茶鲜叶儿茶素类和嘌呤碱HPLC指纹图谱特征比较
HPLC Profiling of Catechins and Purine Alkaloids in Leaves of Oolong and Green Tea Cultivars
摘要
Abstract
The contents of catechins and purine alkaloids in two or three leaves with a bud from the spring and autumn shoots of 10 oolong and 10 green tea cultivars (Camellia sinensis) were determined by high performance liquid chromatography.A visual pattern recognition was performed with the aid of the principal components analysis,orthogonal partial least squares discriminant analysis and other statistical methods.There were distinctive differences on the profiles between the two categories of cultivars.The catechin and purine alkaloid fingerprints of oolong teas appeared more abundant and diverse than those of green teas.They also differed significantly by the season the leaves were plucked.Among the chemical constituents,caffeine,theobromine,epicatechin gallate,catechin,epigallocatechin,and an unknown component were particularly prominent.They could be used as the major markers for differentiating the two teas.In addition,7 unknown components and epigallocatechin appeared suitable for distinguishing the spring shoots from the autumn shoots of oolong teas.关键词
儿茶素/嘌呤碱/模式识别/茶树品种/指纹图谱Key words
catechins/purine alkaloids/pattern recognition/tea cultivars/fingerprint分类
轻工纺织引用本文复制引用
陈林,项丽慧,王丽丽,陈键,宋振硕,余文权,尤志明..乌龙茶和绿茶品种茶鲜叶儿茶素类和嘌呤碱HPLC指纹图谱特征比较[J].福建农业学报,2018,33(1):21-28,8.基金项目
福建省自然科学基金项目(2016J01121) （2016J01121）
福建省科技重大专项(2017NZ0002-1) （2017NZ0002-1）
福建省农业科学院科技创新团队建设项目(STIT2017-1-3) （STIT2017-1-3）
福建省科技计划项目——省属公益科研院所基本科研专项(2009R10030-1) （2009R10030-1）
