Felgines C., Texier O., Garcin P., Besson C., Lamaison J.L., Scalbert A. (2009) Tissue distribution of anthocyanins in rats fed a blackberry anthocyanin-enriched diet. Mol Nutr Food Res 53:1098-103 PubMed (19653220)

Compound Mean content
Anthocyanins, total 14.4 ┬Ámol/kg
Cyanidin 3-O-glucoside 12.25 ┬Ámol/kg