Antibacterial Activity of Ethanolic Extracts from Jeringau (Acorus calamus)

Abstract Increased resistance of pathogenic bacteria due to the use antibiotics has become a major concern in aquaculture industry. Environmentally friendly products are urgently needed replace for treatments fish diseases. This study aims determine activity extract Jeringau ( Acorus calamus ) as an antibacterial towards Aeromonas hydrophila, Pseudomonas aeruginosa and Vibrio alginolyticus . The A. was obtained by maceration using ethanol solvent. tested its phytochemical content agar diffusion method. used were concentrations 200, 300, 400, 500 600 mg mL -1 Phytochemical test results produced alkaloids, phenolic compounds, saponins, terpenoids flavonoids. inhibition showed that with concentration 200 able inhibit growth hydrophila 13.9 mm, 300 (14.4 mm), 400 (14.8 (16.2 (16.5 mm). On , (13.9 (14.5 (15.2 (15.5 (15.7 (16.4 (18.7 (19 In conclusion, can be fish.