Antibacterial and Antioxidant Activity of Baccharis revoluta Kunth

Actividad antibacteriana y antioxidante de Baccharis revoluta Kunth

Objective. To vvaluate the antibacterial and antioxidant activity of the aerial parts of Baccharis revolute. Methods. The species was collected in the municipality of Chocontá, Cundinamarca (N 05 ° 08 ‘26.3 “W 73 ° 38’ 59.2”). In extracts of leaves, stems and flowers of different polarity were determined in antibacterial activity against the microorganisms Staphylococcus aureus Gram (+), Klebsiella pneumoniae Gram (-) and Escherichia coli Gram (-) using the gel diffusion method by drilling plate and he evaluated the antioxidant activity by the DPPH• method. Results. Antimicrobial efficacy tests showed significant inhibition of the extracts. Moreover, the critical concentration, which is a measure of the susceptibility of the microorganism was determined, and the extracts showed greater antibacterial activity against Staphylococcus aureus than Klebsiella pneumoniae and Escherichia coli. Ethanolic extracts showed a representative antioxidant activity, an antioxidant activity IC50 and on 7.2% and 43.64% for the ethanol extract of leaves, 6.95 and 45.57% for the ethanol extract of stems and 7.1% and 44.16% for the ethanol extract of flowers wich determines us great potential of these ethanolic extracts.

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24. DOI: http://dx.doi.org/10.22490/24629448.1729