Abstract:
The content of bioactive compounds in the leaves of the bangkal plant (Nauclea
subdita (Korth.) Steud.) such as flavonoids and phenols can cause this bangkal plant to work
as an antibacterial. The potential of bangkal leaf extract as a therapeutic agent in treating
bacterial infections in fish, as well as providing a new direction in developing a more effective
and sustainable management strategy for Aeromonas Hydrophila disease. The research
aims to analyze the antibacterial potential of methanol extract of bangkal leaves (Nauclea
subdita (Korth.) Steud. ) against Aeromonas Hydrophila. The research was carried out at the
Basic Laboratory of the Faculty of Fisheries and Maritime Affairs, Bagkal leaf extraction
activities at the Mathematics and Natural Sciences Laboratory at Lambung Mangkurat
University, Banjarbaru. The type of active compound contained in the methanol extract of
bangkal leaves (Nauclea subdita (Korth.) Steud.) which has antibacterial properties against
Aeromonas Hydrophila bacteria is that the methanol extract from bangkal leaves has the
potential as an antibacterial agent against Aeromonas Hydrophila bacteria. Phytochemical
analysis found the presence of alkaloids, flavonoids, tannins and saponins in the extract.
Inhibitory power tests using the disk method and Minimum Inhibitory Concentration (MIC)
test as well as the coculture method showed that the concentration of the extract significantly
influenced its ability to inhibit bacterial growth.
