Mata-Bilbao M.L., Andres-Lacueva C., Roura E., Jauregui O., Escribano E., Torre C., Lamuela-Raventos R.M. (2008) Absorption and pharmacokinetics of green tea catechins in beagles. Br J Nutr 100:496-502 PubMed (18205995)

Compound Mean content
(-)-Epigallocatechin 3-O-gallate 124 mg/400 mg dry weight
(-)-Epigallocatechin 9 mg/400 mg dry weight
(-)-Epicatechin 21 mg/g dry weight
(-)-Epicatechin 3-O-gallate 19 mg/g dry weight
(+)-Catechin 4.38 mg/g dry weight