Abstract
Plant derived medicine or herbs have made a huge contribution to human health. Curcuma longa was significantly proven to have antifungal and antiviral effects. In the present study, antibacterial activity Curcuma longa was investigated against selected bacteria by using disk diffusion method. Two types of solvent extraction were prepared, methanol and chloroform extraction. For the antibacterial screening, the extracts were tested against four selected bacteria; Staphylococcus aereus, Listeria monocytogenes, Salmonella spp and Shigella spp at 100% concentration. This is followed by Minimum Inhibitory Concentration (MIC) test at 25%, 50% and 100% to identify the lowest concentration which can inhibit the bacteria. The result showed that both extractions had antibacterial potential against both the gram negative bacteria and both gram positive bacteria. Thus, it is suggested that Curcuma longa leaves extracts has a potential to kill gram positive and gram negative pathogenic bacteria
