Antibiotic Activity of Endophytic Bacteria Isolated from Euchema Cottoni of North Galesong Sea, Takalar

Abstract

Aeromonas sp. and Klebsiella sp. were two active endophytic microbe isolated from Euchema cottoni in North Galesong Sea, Takalar district using agar nutrient medium. These isolates then purified by the strike plate on Klinger Iron Agar medium. Fermentation process was carried out using yeast malt broth medium to provide the active compound. The fermented products were supernatant and pellets. The antimicrobial activity was measured using agar diffusion method. The result shows that supernatan which only gave activity to Staphylococcus aureus and Escherichia coli is Aeromonos sp.

Keywords: Aeromonas sp., antibiotic, endophytic bacteria, Klebsiella sp., seaweed