Antimicrobial Activity of Eucalyptus (Eucalyptus camaldulensis) Essential Oil Against Fish Pathogen Bacterium, Aeromonas caviae

The intensive use of antibiotics in aquaculture has resulted increased resistance among fish pathogens, and this situation led researchers to investigate the antibacterial properties natural resources. present study focused on an essential oil isolated from leaves Eucalyptus camaldulensis as a potential that could be used against Aeromonas caviae. Eighteen compounds were identified oil, representing 86.68 % total oil. components found p-cymene (20.09%), β-phellandrene (18.61%), α-phellandrene (7.50%), α-terpineol (6.02%), terpinen-4-ol (5.50%), Crypton (5.36%), spathulenol (4.26%), linalool (3.56%), 1,8-cineole (2.77%), farnesol (2.31%), Cumin aldehyde (2.13%), limonen (2.12%), α-thujene (1.94%), fellendral (1.13%), γ-terpinene (1.10%), sabinene (0.97%), α-pinene (0.68%) α-terpinen (0.63%). efficiency oils caviae was determined using Minimum Inhibitory Concentration (MIC) Bactericidal (MBC) values, ranging 200 µg/ml 400 respectively. Our findings revealed (Eucalyptus camaldulensis) agent efficiently contribute control infection fish.