Abstract Title:

Selective growth inhibitory effect of biochanin A against intestinal tract colonizing bacteria.

Abstract Source:

Molecules. 2010;15(3):1270-9. Epub 2010 Mar 3. PMID: 20335979

Abstract Author(s):

Olga Sklenickova, Jaroslav Flesar, Ladislav Kokoska, Eva Vlkova, Katerina Halamova, Jan Malik

Article Affiliation:

Department of Crop Sciences and Agroforestry, Institute of Tropics and Subtropics, Czech University of Life Sciences Prague, Kamycka 129, Prague 6, 165 21, Czech Republic. sklenickova@its.czu.cz


Both bifidobacteria and clostridia are part of the natural gut microflora and while clostridia may be responsible for severe intestinal infections, bifidobacteria are probiotic microorganisms belonging to the most important prospective bacteria in the bowel. The antimicrobial activity of biochanin A was tested in vitro against six Bifidobacterium spp., and eight Clostridium spp. using the broth microdilution method. Biochanin A showed an inhibition against all clostridia in the range of minimum inhibitory concentrations (MIC) from 64 microg/mL (for Cl. clostridioforme, strains DSM 933 and I3) to 1,024 microg/mL (for Cl. perfringens, DSM 11778). No bifidobacteria were suppressed at four-fold higher concentration (MICs>4,096) than MIC of Cl. perfringens. These results indicate selective growth inhibition of biochanin A and its potential use in antimicrobial prevention and/or protection.

Study Type : In Vitro Study

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