Abstract:
Antibacterial activities of methanol crude extract of six exclusive mangroves species
were investigated to determine the antibacterial activity of few exclusive mangroves, the
minimal inhibitory concentrations for antibacterial activities and the plant with highest
antibacterial activity. These studies were crucial to find new sources of antibacterial and
explore new dimension of mangrove in pharmaceutical field. The extracts of Avicennia
alba, A. lanata, Sonneratia ovata, S. caseolaris, Acanthus ilisifolius and Heritera
littoralis were tested against seven pathogenic bacterial which are three Gram positive
bacteria; Staphylococcus aureus, Bacillus subtilis, Micrococcus sp., and four Gram
negative bacteria; Escherichia coli, Pseudomonas aeruginosa, Klebsiella pneumoniae
and Vibrio fischeri by using disk diffusion method. Sonneratia caseolaris, S. ovata and
Heritera littoralis were shows antibacterial activities against Staphylococcus aureus,
Micrococcus sp. and Bacillus subtilis.
