Antibacterial activity of Baccharis trimera (Less.) DC. (carqueja) against bacteria of medical interest1/Avaliação antibacteriana de Baccharis trimera (Less.) DC. (carqueja) em bactérias de interesse médico

Baccharis trimera (Less.) (Asteraceae), popularly know as "carqueja", is a species commonly used in folk medicine for the treatment or prevention of diseases. In this context, the purpose of this work was to study the antibacterial activity of crude hydroalcoholic extract from Baccharis tr...

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Veröffentlicht in:Revista Ceres 2013-09, Vol.60 (5), p.731
Hauptverfasser: Aleixo, Álan Alex, Herrera, Karina Marjorie Silva, Ribeiro, Rosy Iara Maciel de Azambuja, Lima, Luciana Alves Rodrigues dos Santos, Ferreira, Jaqueline Maria Siqueira
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container_title Revista Ceres
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creator Aleixo, Álan Alex
Herrera, Karina Marjorie Silva
Ribeiro, Rosy Iara Maciel de Azambuja
Lima, Luciana Alves Rodrigues dos Santos
Ferreira, Jaqueline Maria Siqueira
description Baccharis trimera (Less.) (Asteraceae), popularly know as "carqueja", is a species commonly used in folk medicine for the treatment or prevention of diseases. In this context, the purpose of this work was to study the antibacterial activity of crude hydroalcoholic extract from Baccharis trimera against Gram-positive bacterial strains (Staphylococcus aureus ATCC 29213, Staphylococcus saprophyticus ATCC 15305, Staphylococcus epidermidis ATCC 12228, Enterococcus faecalis ATCC 19433) and Gram-negative bacteria (Escherichia coli EHEC ATCC 43895, Pseudomonas aeruginosa ATCC 27853, Klebsiella pneumoniae ATCC 27736, Salmonella typhi ATCC 19430) of clinical interest. Antibacterial susceptibility was evaluated by broth microdilution assay following the CLSI (formerly the NCCLS) guidelines. The extract from B. trimera showed antibacterial activity against Gram-positive bacteria and the most interesting result was obtained against S. epidermidis that presented Minimal Inhibitory Concentration of 250µg/mL. These results indicate that B. trimera have bacterisostatic potential against Gram-positive bacterial strains of medical interest and could serve as a base for further studies on the use of isolated compounds from this species as future antimicrobials. [PUBLICATION ABSTRACT]
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title Antibacterial activity of Baccharis trimera (Less.) DC. (carqueja) against bacteria of medical interest1/Avaliação antibacteriana de Baccharis trimera (Less.) DC. (carqueja) em bactérias de interesse médico
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