Caccetta R.A., Croft K.D., Beilin L.J., Puddey I.B. (2000) Ingestion of red wine significantly increases plasma phenolic acid concentrations but does not acutely affect ex vivo lipoprotein oxidizability. Am J Clin Nutr 71:67-74

Compound Mean content
Polyphenols, total 87 mg/L
Caffeic acid 0.08 mg/L
Protocatechuic acid 0.04 mg/L
Gallic acid 0.01 mg/L