Table 1.

Composition of Polyphenon E and Polyphenon E without EGCG

AbbreviationPolyphenon E (w.t.%)Polyphenon E without EGCG (w.t.%)
Caffeine0.70.8
(+−)-Gallocatechin(+−)-GC0.21.7
(−)-Epigallocatechin(−)-EGC3.828.2
(+−)-Catechin(+−)-C1.03.3
(−)-Epigallocatechin gallate(−)-EGCG65.01.4
(+-)-Epicatechin(+−)-EC9.143.9
(−)-Gallocatechin gallate(−)-GCG3.50.1
(−)-Epicatechin gallate(−)-ECG6.60.3
(−)-Catechin gallate(−)-CG0.20.2
Total catechins89.479.1

NOTE: Data provided by Mitsui Norin Co., Ltd. (Japan).