Studies of Antibacterials effect of Fresh Soft Coral (Geodia sp.) Extract Against Escherichia coli and Vibrio parahaemolyticus and The Content of Active Compounds

Faikoh, Elok Ning
Yuliana, Denok Eka
Suhendriani, Sari
Aini, Herlin Qurotul

Jurnal Teknologi Pertanian
Vol 14, No 3 (2013)

Soft corals (sponge) is a species of marine animals that live in the coral reef environment. There are more than  five thousand species found  in nature. The generally aims of this study are to diversify the utilization of diverse species of marine life in Indonesia through out  knowledge about the chemical content and its bioactive characteristic especially sponge Geodia sp. The results showed that the crude extract of fresh soft corals Geodia sp. has antibacterial activity against E. coli and Vibrio parahaemolyticus. The most effective solvent to extract secondary metabolites in a fresh Geodia sp. is chloroform. The results of GC-MS analysis was found 16 secondary metabolites in soft corals Geodia sp,. Two of the most dominant  are  Androst-4-en-3-one at 34.06% and 1,5-di-tert-butyl-1 ,3-cyclohexadine at 17.96% and both of them are  derivative of  terpenoid.Keywords: soft corals, antibacterial, secondary metabolites