Metabolism of glycyrrhizin and baicalin by human intestinal bacteria

  • Dong Hyun Kim
  • , Il Sung Jang
  • , Hyeong Kyu Lee
  • , Eun Ah Jung
  • , Kyeu Yup Lee

Research output: Contribution to journalArticlepeer-review

23 Scopus citations

Abstract

By human intestinal bacteria, glycyrrhizin (18β-glycyrrhetic acid β-D-glucuronyl α-D-glucuronic acid, GL) and baicalin (baicalein β-D-glucuronic acid) were metabolized to glycyrrhetinic acid and baicalin, respectively. However, α-glucuronidase of Bacteroides JY-6 isolated from human intestinal bacteria hydrolyzed GL or 18β-glycyrrhetinic acid α-D-glucuronic acid to 18β-glycyrrhetic acid but did not baicalin. However, E coli β-glucuronidase from human intestinal bacteria hydrolyzed baicalin to baicalein, but did not GL. β-Glucuronidase of mammalian tissues hydrolyzed both GL and baicalin.

Original languageEnglish
Pages (from-to)292-296
Number of pages5
JournalArchives of Pharmacal Research
Volume19
Issue number4
DOIs
StatePublished - Aug 1996

Keywords

  • Bacteroides J-37
  • Baicalin
  • Glycyrrhizin
  • Intestinal bacteria

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