Antibacterial activity of plant extracts from Brazilian southeast region

Denilson F Oliveira, Aline C Pereira, Henrique C P Figueiredo, Douglas A Carvalho, Greiciele Silva, Alexandro S Nunes, Dejane S Alves, Hudson W P Carvalho
Fitoterapia 2007, 78 (2): 142-5
A screening was conducted with 26 plants collected in the Brazilian southeast region, to identify plant extracts with antibacterial properties against Aeromonas hydrophila, Bacillus subtilis, Pseudomonas aeruginosa and Staphylococcus aureus. Initially, the agar diffusion method was employed. Then, those extracts presenting activity were submitted to a broth microdilution assay to determine the minimal inhibitory concentration (MIC) and minimal bactericidal concentration (MBC). It was observed that 13 of the tested extracts showed antibacterial activity. The best results were obtained with those from Lantana lilacina and Phyllanthus tenellus.

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