Abstract

The search continues for safe and effective antimicrobial agents with which to treat, therapeutically and prophylactically, a wide variety of bacterial infections. The aim of this study was to determine the effect of Lippia citriodora against MRSA. L. Citrofora were tested aginst Staphylococcus aureus by minimal inhibitory concentration (MIC) and disk diffusion methods. It was found that the percentage of growth inhibition increasing with increasing concentration steadily up to 55 µl/ml and IC50 value of this assay was 0.245. MIC for each bacterial sample showed only MRSA inhibited in concentration of 15 µl/ml of oil. The use of plants to heal diseases, including infectious one, has been extensively applied by people. Our results reveal the great potential of plants for therapeutic treatment, in spite of the fact that they have not been completely investigated.

Key words: Lippia citriodora, Staphylococcus aureus, minimal inhibitory concentration (MIC).