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- Title
Antibacterial activity of Baccharis trimera (Less.) DC. (carqueja) against bacteria of medical interest.
- Authors
Alex Aleixo, Álan; Silva Herrera, Karina Marjorie; de Azambuja Ribeiro, Rosy Iara Maciel; dos Santos Lima, Luciana Alves Rodrigues; Siqueira Ferreira, Jaqueline Maria
- Abstract
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.
- Subjects
ANTI-infective agents; STAPHYLOCOCCUS epidermidis; GRAM-positive bacterial infections; ENTEROCOCCUS faecalis; SALMONELLA typhi
- Publication
Revista Ceres, 2013, Vol 60, Issue 5, p731
- ISSN
0034-737X
- Publication type
Article
- DOI
10.1590/s0034-737x2013000500019