云南“生态茶”的化学成分

CHEMICAL CONSTITUENTS OF″ECOLOGICAL TEA″FROM YUNNAN

从云南西双版纳产大叶茶（Ｃａｍｅｌｌｉａｓｉｎｅｎｓｉｓｖａｒ．ａｓｓａｍｉｃａ）制成的“生态茶”中分离到１１个化合物和１个混晶，经光谱测定，１１个化合物分别鉴定为没食子酸、（＋）儿茶素、（－）表儿茶素、（－）没食子儿茶素、（－）表没食子儿茶素、（－）表儿茶素－３－０没食子酸酯、（－）表没食子儿茶素－３－Ｏ没食子酸酯、茶素、１，４，６－三役食子酰基－β－Ｄ葡萄糖１－Ｏ－没食子酰基－４，６－（－）－六羟基联苯二甲醚基－β－Ｄ－葡萄糖以及咖啡因；混晶为芦丁和山奈酚－３－芸香糖甙的混合物。这是对国产大叶茶的第一次较详细的化学研究。

Gallic acid,(+)catechin,(-)epicatechin,(-)gallocatechin,(-)epigallocatechin,(-)epicatechin 3-O-gallate,(-)epigallocatechin3-O-gallate, theogallin,1,4,6-tri-O-galloyl-β- D-glucose,I-O-galloyl-4,6-(-)-hexahydroxydiphenoyl-β-D-glucose and caffine together a mixture crystal of rutin and kaempferol-3-rutinoside were isolated from“ecological tea”. This is first detailed chemical report for a kind of green tea prepared by the leaves of Camellia sinensis var. assamica cultivated in the south of Yunnan, China.