Efficacy of essential oil nanoemulsion delivery system for strong antimicrobial action against pathogen Listeria monocytogenes

Listeria monocytogenes has gained increasing attention as a pathogen of public health importance owing to large numbers of foodborne outbreaks of listeriosis, led to this study. A wide range of essential oils (EOs) and natural products have been used to control Listeria monocytogenes. The reason for using essential oils is to preserve food by inhibiting the growth and proliferation of microorganisms in food due to its antimicrobial effects against microorganism, but their low water solubility limits their efficacy and application in food. This study included two objectives first, in the present study, 28 different essential oils were evaluated for their antimicrobial activities against Listeria monocytogenes.Various concentrations of EOs were introduced into brain heart infusion broth to determine the minimum inhibitory concentration (MIC) for the pathogen. The experimental data were fitted to the modified Gompertz model, and the lag phase duration and maximum growth rate were calculated and compared for each essential oil at various concentrations. Overall, our experimental results indicate that frankincense, eucalyptus, and fire needle oils had the strongest inhibitory effects against Listeria monocytogenes with MICs