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Updated: Jun 25, 2026

An In Vitro Batch-culture Model to Estimate the Effects of Interventional Regimens on Human Fecal Microbiota
Published on: July 31, 2019
Metabolism of hibifolin by human intestinal bacteria
Tong-Tong Xu1, Xiu-Wei Yang, Bin Wang
1Department of Natural Medicines and State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical , Sciences, Peking University Health Science Center, Beijing, P. R. China.
Abstract:
Hibifolin, the highest-content bioactive flavonoid of the flowers of Abelmoschus manihot, was incubated with human intestinal bacteria, and four metabolites (1-4) were obtained from the incubated solution by chromatographic methods. The structures of the four metabolites were elucidated as gossypetin 8-O-beta-D-4''-deoxy- Delta(4'')-glucuropyranoside (1), gossypetin (2), quercetin (3), and 8-methoxy-quercetin (4), respectively, on the basis of UV, NMR, and MS data. Metabolite 1 was obtained as a new compound with a specific beta-D-4''-deoxy-Delta(4'')-glucuropyranosyl moiety, which was formed through a unique and novel metabolic pathway that has not been reported previously.
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