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  • Title: Metabolism of gentiopicroside (gentiopicrin) by human intestinal bacteria.
    Author: el-Sedawy AI, Hattori M, Kobashi K, Namba T.
    Journal: Chem Pharm Bull (Tokyo); 1989 Sep; 37(9):2435-7. PubMed ID: 2605687.
    Abstract:
    As a part of our studies on the metabolism of crude drug components by intestinal bacteria, gentiopicroside (a secoiridoid glucoside isolated from Gentiana lutea), was anaerobically incubated with various defined strains of human intestinal bacteria. Many species had ability to transform it to a series of metabolites. Among them, Veillonella parvula ss parvula produced five metabolites, which were identified as erythrocentaurin, gentiopicral, 5-hydroxymethylisochroman-1-one,5-hydroxymethylisochromen-1- one and trans-5,6-dihydro-5-hydroxymethyl-6-methyl-1H,3H-pyrano[3,4-c]pyra n-1-one.
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