Skreening Potensi Antibakteri pada Beberapa Spesies Rumput Laut terhadap Bakteri Patogen pada Udang Windu

Abstract

Antibacterial activity of several local seaweeds has been screened. Most of these seaweeds species show antibacterial properties against pathogenic bacteria from species of Vibrio and Pseudomonas. The activity of seaweeds extracts were determined by type of solvent used in extraction. Respond of each pathogenic bacteria were also different to each type of extract. Most seaweeds show stronger activity against Pseudomonas rather than Vibrio. Caulerpa and Padina were more active against Pseudomonas compared to Sargassum and Gelidium. Compared to other seaweeds, Sargassum and Gelidium were more active against Vibrio. It is predicted that Sargassum is the the most suitable to be used in polyculture with tiger shrimp (Peneaus monodon), as this is the most active against the most dangerous pathogenic bacteria, Vibrio harveyi. Beside that, the active component of Sargassum is solved in water, therefore will be easier to diffuse into shrimp pond.