茶叶科学Issue(6)：565-571,7.
茶鲜叶中多环芳烃类化合物的分布特性研究
Distribution Characteristics of the Polycyclic Aromatic Hydrocarbon Compounds in Tea Fresh Leaves
摘要
Abstract
The distribution characteristics of 16 Polycyclic Aromatic Hydrocarbon(PAHs) in different fresh tea leaves of different tea cultivars in different seasons were analyzed by using HPLC. R esults showed that Zhenghedabaicha has lowest concentration of 16 PAHs and lowest standard deviation between Zhenghedabai, Taoyuandaye and Xiangfeicui, the average content is 126.92μg·kg-1, the standard deviation is 17.59 μg·kg-1, the concentration of 16 PAHs and standard deviation in different part of tea leaves is expressed as:the bud<the second leaf<the fourth leaf<the sixth leaf, the PAHs′ concentration in bud is 119.13μg·kg-1, standard deviation is 14.36μg·kg-1. The concentration of 16 PAHs in different seasons is expressed as autumn<spring<summer in one year. The concentration of PAHs in autumn is 112.75μg·kg-1, standard deviation is 11.97 μg·kg-1, 16 PAHs in fresh tea leaves are mainly composed of 2, 3 rings, account for about 80%. The proportion of 4-6 rings PAHs is lower.关键词
茶鲜叶/多环芳烃类化合物/分布特性Key words
fresh tea leaves/compounds of polycyclic aromatic hydrocarbon/distribution characteristics分类
农业科技引用本文复制引用
胡琳玲,刘遵莹,刘秋玲,丰金玉,龙金花,肖文军..茶鲜叶中多环芳烃类化合物的分布特性研究[J].茶叶科学,2014,(6):565-571,7.基金项目
国家“十二五”科技支撑计划资助项目 （）
