ABSTRAKSpons merupakan salah satu komponen terumbu karang yang berpotensi sebagai senyawa bioaktif namun belum banyak dimanfaatkan. Penelitian ini diarahkan untuk menperoleh beberapa ekstrak kasar spons dari perairan Salibabu Kepulauan Talaud, menentukan aktivitas antibakteri dari beberapa ekstrsk kasar spons serta membandingkan aktivitas antibakteri fraksi spons terhadap bakteri uji E. coli dan S. aureus. Hasil identifikasi spons ditemukan sebanyak tiga spesies yang terdiri dari: Siphonodictyon sp., Ircinia sp., Dysidea sp. Pengujian aktivitas antibakteri ekstrak kasar, fraksi air, metanol dan heksan menggunakan metode difusi agar dengan bakteri uji E. coli dan S. aureus. Ekstrak kasar siphonodictyon sp dan fraksi air dari ekstrak ini menunjukan aktivitas antibakteri tertinggi.Kata kunci : Spons, Antibakteri, E. coli, S. aureus
Sponge is one component of coral reefs that has the potential as a bioactive compound but has not been widely used. This study was directed to obtain some spongy crude extracts from the Salibabu waters of the Talaud Islands, determine the antibacterial activity of some crude extruded sponges and compare the antibacterial activity of the sponge fraction against E. coli and S. aureus test bacteria. The results of identification of sponges were found in three species consisting of: Siphonodictyon sp., Ircinia sp., Dysidea sp. The antibacterial activity of crude extract, water, methanol and hexane fractions using agar diffusion method with E. coli and S. aureus test bacteria. The crude extract of siphonodictyon sp and the water fraction of this extract show the highest antibacterial activity. Key words: Spons, Antibacterial, E. coli. S. aureus
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