Antibacterial activity of Cinnamomum verum essential oil against antibiotic-resistant Vibrio parahaemolyticus isolated from whiteleg shrimp (Litopenaeus vannamei)

This study investigated multidrug-resistant (MDR) Vibrio parahaemolyticus strains and evaluated the antimicrobial activity of Cinnamomum verum (cinnamon bark) essential oil against these resistant strains, which are pathogenic to Pacific white shrimp (Litopenaeus vannamei). The results demonstrated that Cinnamomum verum essential oil exhibits significant antimicrobial activity against MDR V. parahaemolyticus. Specifically, the essential oil showed inhibition zone diameters ranging from 10 to 12 mm in disk diffusion assays, with a minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) of 12.5 µL/mL for both. published by the Journal of Biodiversity and Environmental Sciences | JBES