Comparative study of in vitro antibacterial activity of leaves, bark, heart wood and seed extracts of Caesalpinia sappan L.

Conclusions The heart wood extracts showed the highest antibacterial activity having a minimal inhibition concentration of 2 mg/mL in all three solvents against the four bacterial strains, except petroleum ether where MIC was 5 mg/mL against E. coli and B. subtilis. The aqueous and methanolic extracts of bark showed minimal inhibition concentrations of 5 mg/mL and 2 mg/mL against K. pneumoniae respectively whereas aqueous extract of bark showed a minimal inhibition concentration of 5 mg/mL against E. coli.
Source: Asian Pacific Journal of Tropical Disease - Category: Tropical Medicine Source Type: research