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Antibacterial Activity of Lantana camara Linn Lantana montevidensis Brig Extracts from Cariri-Ceara, Brazil

2010; Volume: 2; Issue: 1 Linguagem: Inglês

10.4103/0975-1483.62211

0975-1505

Francisco Stefânio Barreto, Erlânio Oliveira de Sousa, Fabíola Fernandes Galvão Rodrigues, José Galberto Martins da Costa, Adriana Rolim Campos,

Phytochemistry and Bioactivity Studies

The use of medicinal plants with therapeutics properties represents a secular tradition in different cultures, mainly in underdeveloped countries. Lantana camara Linn and Lantana montevidensis Briq (Verbenaceae) found in tropical and subtropical areas around the world are popularly known as "camará" or "chumbinho." In popular medicines, both plants are used as antipyretic and carminative and in the treatment of respiratory system infections. In this study, the antibacterial activity of the ethanolic extracts of L. camara and L. montevidensis leaves and roots against gram-positive and gram-negative strains standard and multi-resistant bacteria isolated from clinical material are presented. In order to determine the minimal inhibitory concentration (MIC), the microdilution method was used. The extracts demonstrated antibacterial activity against all tested bacteria, but the L. montevidensis fresh leaves extract present the best result against P. aeruginosa (MIC 8 μg/mL) and against multi-resistant E. coli (Ec 27) (MIC 16 μg/mL). These results drive new researches with both species in order to isolate the constituents responsible for the activity.