Atividade antibacteriana de extratos do caule de Cedrela fissilis Vell. (Meliaceae)

Cedrela fissilis Vell. (Meliaceae) is a native tree found in forests of the state of Parana, Brazil, and used in folk medicine as astringent and emetic substance against leukorrhea and in the washing of ulcers and wounds. Extracts of different polarity obtained from the stem were used to evaluate its antimicrobial activity against Staphylococcus aureus and Escherichia coli . Hexane extract yielded a mixture of sitosterol (50,40%), stigmasterol (21,70%) and campesterol (22,80%) which showed minimal inhibitory concentration (MIC) of 0,5mg/mL against Staphylococcus aureus .