Antibacterial activity of organic and aqueous extracts of Acacia aroma was evaluated against methicillinresistant
Staphylococcus aureus (MRSA), methicillin sensitive Staphylococcus aureus (MSSA) and
methicillin-resistant Staphylococcus epidermidis. Inhibition of bacterial growth was determined using agar
diffusion and bioautographic methods. Among all assayed organic extracts only ethanolic and ethyl acetate
extracts presented highest activities against all tested Staphylococcus strains with minimal inhibitory
concentration (MIC) values ranging from 2.5 to 10 mg/ml and from 2.5 to 5 mg/ml respectively. The
aqueous extracts show little antibacterial activity against Staphylococcus strains. The bioautography assay
demonstrated well-defined growth inhibition zones against S. aureus in correspondence with flavonoids
and saponins. A. aroma would be an interesting topic for further study and possibly for an alternative
treatment for skin infections.
