Zhang K., Zuo Y. (2004) GC-MS determination of flavonoids and phenolic and benzoic acids in human plasma after consumption of cranberry juice. Journal of Agricultural and Food Chemistry 52:222-227 PubMed (14733499)

Compound Mean content
Benzoic acid 54.94 µg/mL
2-Hydroxybenzoic acid 3.11 µg/mL
Cinnamic acid 0.18 µg/mL
3-Hydroxybenzoic acid 0.15 µg/mL
2,3-Dihydroxybenzoic acid 2.41 µg/mL
o-Coumaric acid 3.43 µg/mL
p-Coumaric acid 2.63 µg/mL
Ferulic acid 1.11 µg/mL
Caffeic acid 0.14 µg/mL
Sinapic acid 5.11 µg/mL
(-)-Epicatechin 5.68 µg/mL
(+)-Catechin 0.38 µg/mL
Quercetin 7.79 µg/mL
Myricetin 3.72 µg/mL