Potential Anti-Bacteria From Sponge Types Find On The Seaweed Ecosystem In The Waters Of Melahing Island, Bontang City

Abstract

The amount of bioactive content in sponge showed that sponge has many potential such as antibacterial. This study aims to determine the type of sponge and antibacterial potential of Sponge extract found in seagrass ecosystems in the waters of Melahing Island, Bontang City against Staphylococcus aureus and Escherichia coli bacteria. The extractions used were maceration extraction (immersion) and testing with nutrient agar medium (NA). The test was performed using Cup-plate thechnique method, with three concentrations of sponge extract test of 125 μg / 50 μL, 250 μg / 50 μL and 500 μg / 50 μL and two repetitions. From 9 (Nine) samples found only 8 (eight) can be identified is Haliclona sp., Clathria Sp., Erylusformosus, Aplysinacarvenicola, Tedaniaignis, Lissodendoryx sp., Ircinia sp., And Petrosia sp. That sponge which has the greatest antibacterial potential against S. aureus and E. coli bacteria is Irciniasp. With the inhibitory zone diameter of S. aureus bacteria ie 13 mm and inhibition zone of E. coli bacteria ie 12.3 mm. Sponge which has the smallest antibacterial potential in S. aureus bacteria is Tedaniaignis with a drag zone diameter of 2 mm and on E. coli bacteria is Clathria sp. With a drag zone diameter of 2.15 mm.