Increased plasma concentration of epigallocatechin in mice after orally administering a green tea (Camellia sinensis L.) extract supplemented by steamed rice

Biosci Biotechnol Biochem. 2011;75(1):152-4. doi: 10.1271/bbb.100593. Epub 2011 Jan 7.

Abstract

We attempted to improve the bioavailability of green tea catechins by using food ingredients. The catechin bioavailability of a green tea extract administered to mice was significantly (p<0.05) increased by supplementing with steamed rice. This enhanced bioavailability was due to the increased concentration of plasma non-gallated catechins, especially epigallocatechin (EGC).

MeSH terms

  • Administration, Oral
  • Animals
  • Biological Availability
  • Camellia sinensis / chemistry*
  • Catechin / analogs & derivatives*
  • Catechin / blood
  • Catechin / pharmacokinetics
  • Cooking*
  • Diet
  • Dietary Supplements*
  • Female
  • Mice
  • Oryza*
  • Plant Extracts / administration & dosage*
  • Plant Extracts / pharmacology*

Substances

  • Plant Extracts
  • Catechin
  • gallocatechol