Laboratory of Nutritional Biochemistry, Division of Applied Bioscience, Graduate School of Agriculture, Hokkaido University
Megumi MATSUMOTO
Laboratory of Nutritional Biochemistry, Division of Applied Bioscience, Graduate School of Agriculture, Hokkaido University Meiji Dairies Research Chair, Creative Research Initiative Sousei (CRIS), Hokkaido University
Hiroshi HARA
Laboratory of Nutritional Biochemistry, Division of Applied Bioscience, Graduate School of Agriculture, Hokkaido University
Biliary excretion of quercetin metabolites in conscious rats was biphasic, a high peak within 3 h and a lower peak for next 6 h, after duodenal administration of soluble quercetin glycosides. We also found much higher biliary excretion of quercetin metabolites than urinary excretion on feeding a quercetin glycoside diet. These results suggest high levels of enterohepatic circulation of quercetin metabolites.
