SCREENING ON THE POTENTIAL BIOACTIVE COMPOUNDS OF ANTIBACTERIAL ACTIVITY IN SOFT CORAL COLLECTED FROM SOUTH BANGKA ISLAND WATERS AND LAMPUNG BAY

oft corals contain bioactive compounds that can be used as a marine natural product. Th epuposes of this study was to determine of the soft corals inhibition potential for antibacterial activity. The methodology in this study included field sampling, extraction (in the solvent of n-hexane, ethyl acetate and methanol), antibacterial bioassay, and briefly describe the type of soft coral that possesed the highest inhibition. In sampling treatment, the biomass among wet samples and dry samples varied .  The highest shrinkage due to dryingwas found inNephthea , followed by Lobophytum and Sarcophyton , while the lowest wa s found in the genus of Sinularia . Extracted from 12 samples of soft coral , the lowest extract weight was found in the semi-polar solvent (EtOAc), while the extract weight of n-Hex and MeOH was var y . Inhibition power from all extract sample swas found on soft coral extract in the EtOAc and MeOH solvents. The highest value of inhibition power was found in soft coral of Sinulariapolydactylaand S. Flexibilis within strong catogery.  Keywords : bioactive compounds, Lobophytum , Nephthea , Sarcophyton , Sinularia, soft coral