Urine Plasma  
[polyphenol] source used in experiment Source composition 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
human studies
fried onions Food administered
200 g Single dose 4 0.11 µmol/L after 1.5 hours DAY 2001
grape juice preparation Food administered
1200 mL Single dose 1 Detected (unquantified) MENG 2004
grapefruit juice Food administered
430 mL Single dose 9 0.1 µmol after 12 hours ITO 2005
orange juice Food administered
550 g Single dose 9 0.3 µmol after 12 hours ITO 2005
quercetin Not applicable 0.5 mg/kg bw Single dose 2 Detected (unquantified) MENG 2004
rat studies
isorhamnetin Not applicable 0.25 mg/kg bw Single dose 10 8 0.18 8.2 862.6 Graph LAN 2007
  Urine Plasma  
[polyphenol] source used in experiment Source composition 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
[2-14C]quercetin 4'-glucoside Not applicable 3.26 mg/kg bw Single dose 12 Detected (unquantified) GRAF 2005