Tea As a natural and healthy beverage tea is rich in polyphenol theine aromatic hydrocarbons carbohydrate protein multiple amino acids vitamins minerals and pectin .

茶：茶是一种富含多元酚、 咖啡碱、芳香烃、碳水化合物、蛋白质、多种氨基酸、维他命、矿物质和果胶的天然饮料。

In1838 it was found that theine a substance in tea was identical to caffeine .

1838年发现茶中的一种物质 叫 咖啡碱与咖啡因有相同的 效用。

Phosphorus can promote the contents of flavone . tea - Poly phenols amino acid and theine .

磷能促进类黄酮物质的 形成 以及 增加茶多酚、氨基酸和 咖啡碱的含量。

Quantitative sensitivity of theine and catechin are 0 . 1 μ g and 0 . 08 μ grespectively .

茶碱及儿茶素组分的定量灵敏度分别为0.1μg和0.03μg。

DrinkTeaThe excited effect that causes it is the effect of theine .

饮茶所引起的兴奋作用，是 咖啡碱的功效。