Llorach R., Urpi-Sarda M., Jauregui O., Monagas M., Andres-Lacueva C. (2009) An LC-MS-based metabolomics approach for exploring urinary metabolome modifications after cocoa consumption. J Proteome Res 8:5060-8 PubMed (19754154)

Compound Mean content
(-)-Epicatechin 0.71 mg/g dry weight
(+)-Catechin 0.21 mg/g dry weight
Procyanidin dimer B2 0.64 mg/g dry weight
Quercetin 3-O-glucoside 33.87 µg/g dry weight
Quercetin 5.74 µg/g dry weight
Quercetin 3-O-glucuronide 4.33 µg/g dry weight
Quercetin 3-O-arabinoside 36.32 µg/g dry weight
Polyphenols, total 11.51 mg/g dry weight