Vitaglione P., Sforza S., Galaverna G., Ghidini C., Caporaso N., Vescovi P.P., Fogliano V., Marchelli R. (2005) Bioavailability of trans-resveratrol from red wine in humans. Mol Nutr Food Res 49:495-504 PubMed (24851878)

Compound Mean content
Trans-Resveratrol 0.82 mg/L
Trans-Resveratrol 1.92 mg/L
Trans-Resveratrol 0.08 mg/100 ml