Abstract
Extratos obtidos a partir de 45 especies da Colecao de Germoplasmas do CPQBA foram estudados quanto a atividade antimicrobiana. As especies que apresentaram forte inibicao (Concentracao Minima Inibitoria ate 0,5 mg/mL) para os respectivos microrganismos foram: Achillea millefolium (0,5), Mikania laevigata (0,04), Solidago chilensis (0,1), Piper marginatum (0,2) para Staphylococcus aureus; Aloysia gratissima (0,1), P. marginatum (0,2), M. laevigata (0,09) para Bacillus subtilis e Mentha pullegium (0,3), Mikania glomerata (0,1), M. laevigata (0,04), Stachytarpeta cayenensis (0,2) e Bacharis dracunculifolia (0,5) para Streptococcus faecium. De acordo com os resultados, ressaltamos a especie M. laevigata por apresentar inibicao contra tres das bacterias estudadas, em concentracoes similares a do cloranfenicol, padrao de referencia utilizado.
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