Antibacterial activity of Piqueria trinervia, a Mexican medicinal plant used to treat diarrhea
Por:
De Esparza R.R., Bye R., Meckes M., López J.T., Jiménez-Estrada M.
Publicada:
1 ene 2007
Resumen:
Intestinal infectious diseases are among the top 10 causes of mortality in Mexico. Children under 5 years of age and adults over 65 years are the most affected; the incidence is greater in rural and indigenous communities. Traditional remedies based on medicinal plants are commonly used; however, the biological activity of many of them has been poorly studied. Thus, we evaluated the antimicrobial activity of the hexane, dichloromethane, ethyl acetate, and methanol extracts of aerial parts and roots of the Piqueria trinervia Cav. (Asteraceae) plant used to treat diarrhea in Mexico. The extracts were tested in vitro against 11 strains: Escherichia coli, E. coli multidrug resistant (MDR), Salmonella typhi, Shigella boydii, Staphylococcus aureus, Staphylococcus epidermidis, Yersinia enterocolitica, Vibrio cholerae not toxic, Bacillus subtilis, Enterobacter aerogenes, and Enterobacter agglomerans. The hexane extract obtained from the thick roots was active against the 11 strains. The ethyl acetate extract from the thin roots was active against eight of the strains; poor activity was detected in dichloromethane and methanol extracts. © 2007 Informa Healthcare.
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