Human Intestinal Bacterium, Strain END-2 Is Responsible for Demethylation as Well as Lactonization during Plant Lignan Metabolism

Abstract excerpt

A human intestinal bacterium, strain END-2, which enantioselectively oxidizes (+)-enterodiol (END) to (+)-enterolactone (ENL) through enterolactol is also responsible for demethylation during plant lignan metabolism. A free hydroxyl group adjacent to the methoxy group is required for demethylation. The bacterium transformed (+)- and (-)-secoisolariciresinol to (+)-ENL and (-)-END, respectively, by co-incubation...

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