贵州石阡苔茶生化成分分析

Analysis on biochemical components of Shi Qian Tai Tea from Guizhou

通过分析石阡苔茶群体品种鲜叶和成品茶的主要生化成分,结果表明:石阡苔茶群体品种鲜叶中,氨基酸、咖啡碱、可溶性糖和Vc的含量高于福鼎大白茶鲜叶,其中B样点鲜叶中咖啡碱、可溶性糖、茶多酚、氨基酸含量均高于A、C样点,A样点Vc含量最高达1.13%;成品茶茶多酚含量低于福鼎大白茶,而咖啡碱、水浸出物、Vc含量明显高于福鼎大白茶。说明作为贵州地方又一群体品种,石阡苔茶具有较大的开发利用前景。

The biochemical quality of Shi Qian Tai tea from Guizhou was studied, including contents of polyphenols, amino acids, caffeine, soluble sugar and vitamin C. The composition of the biochemical components in Shi Qian Tai tea fresh leaves and dry tea were analyzed in comparison with Fuding white tea. The results showed that the content of amino acids, caffeine, vitamin C and soluble sugar in Shi Qian Tai tea were significantly higher than Fuding white tea. The content of caffeine, soluble sugar, polyphenols and vitamin C in sample point B were higher than sample point A and C, and the highest vitamin C content in sample point A was as high as 1. i3%. The content of polyphe- nols in Shi Qian Tai dry tea was lower than Fuding white tea, but the content of caffeine, water extracts and vitamin C were significantly higher than Fuding white tea. In conclusion, Shi Qian Tai tea, a new population cultivar in Guizhou, has strong prospects for exploitation and utilization.