The four primary polyphenols found in fresh tealeaves are epigallocatechin gallate (EGCG), epigallocatechin, epicatechin gallate, and epicatechin.

新鲜茶叶中的四种主要的多酚类物质为儿茶素，epigallocatechin(?) ，epicatecin gallate(?)

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While all true teas contain EGCG (epigallocatechin-3-gallate), the various types of green tea have the most.

在各种各样含有儿茶素（表没食子儿茶素没食子酸酯）的茶叶中，绿茶的儿茶素含量最高。

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Objective to elucidate the mechanism of apoptosis induced by epigallocatechin-3-gallate (EGCG) on human gastric cancer BGC823 cells via mitochondrial pathway.

目的探讨表没食子儿茶素没食子酸酯(EGCG)通过活化线粒体途径诱导人胃癌BGC823细胞凋亡的作用机制。

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The team of researchers, led by Dr Anastasis Stephanou, carried out laboratory tests on heart cells which found that a major chemical component of green tea known as epigallocatechin-3-gallate (EGCG) can reduce cell death after a heart attack or stroke.

BBC: NEWS | Health | Green tea 'may protect the heart'