Mata-Bilbao M.L., Andres-Lacueva C., Roura E., Jauregui O., Torre C., Lamuela-Raventos R.M. (2007) A new LC/MS/MS rapid and sensitive method for the determination of green tea catechins and their metabolites in biological samples. J Agric Food Chem 55:8857-63

Compound Mean content
(-)-Epicatechin 103.5 mg/g dry weight
(-)-Epicatechin 3-O-gallate 93 mg/g dry weight
(-)-Epigallocatechin 47 mg/g dry weight
(-)-Epigallocatechin 3-O-gallate 622 mg/g dry weight