Urine Plasma  
Polyphenol metabolite Composition of the [polyphenol] source Doses
administered
Dose
duration
Total no. subjects Mean urinary excretion (%) Kinetic data Tmax (hours) Mean Cmax (µmol/L) Half life (hours) AUC (µmol/L·h) Kinetic data Reference
rat studies
(+)-Catechin Not applicable 1 g/kg bw Single dose 3 0.85 ┬Ámol/L after 2 hours SERRA 2009
(-)-Epicatechin Not applicable 1 g/kg bw Single dose 3 1.28 ┬Ámol/L after 2 hours SERRA 2009