Abstract:
Plants have been widely used as the medicine because of their medicinal value. In this
study, we used two assays to identify the medicinal value that contained in mangrove
plant Sonneratia alba. The antimicrobial activity of leaf and bark extract of S.alba in
three different solvent such as dichloromethane, ethyl acetate and methanol was
determine by using two in vitro model, disc diffusion assays and minimum inhibitory
concentration (MIC) assays against five species of pathogenic bacteria such as
Staphylococcus aureus, Klebsiella pnuemoniae, Salmonella typhii, Escherichia coli,
and Bacillus cereus. In disc diffusion method, freeze dried leaf methanol extract was
show the highest inhibition zone that others with 1.45±0.15 mg/ml against
Staphylococcus aureus.
