Antimicrobial activity of Mimosa tenuiflora (Willd.) Poir. from Northeast Brazil against clinical isolates of Staphylococcus aureus / Atividade antimicrobiana de Mimosa tenuiflora (Willd.) Poir. do Nordeste do Brasil, contra isolados clínicos de Staphylococcus aureus
Padilha, Itácio Q. M; Pereira, Andréia V; Rodrigues, Onaldo G; Siqueira-Júnior, José P; Pereira, Maria do Socorro V.
Rev. bras. farmacogn
; 20(1): 45-47, Jan.-Mar. 2010. ilus
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| LILACS | ID: lil-551261
Mimosa tenuiflora is a native plant of Northeast Brazil where it is popularly known as ''jurema-preta'' and it is widely used in folk medicine. In this work the anti-Staphylococcus aureus activity of ethanol extract of M tenuiflora was evaluated by determination of minimum inhibitory concentration (MIC) of clinical isolates by the agar dilution method, and by time-kill assay using a reference strain. MIC values against 30 isolates were 0,18 mg/mL (16/30) or 0,36 mg/mL (14/30, and also the reference strain). In the reference strains, at concentrations up to 4x MIC, only bacteriostatic effect was observed, but at 8x MIC a fast bactericidal effect was observed.
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