Bioactivity of selected essential oils and some components on Listeria monocytogenes biofilms

Carvacrol and 1,8-cineole alone or in combination at sublethal concentrations induce changes in the cell morphology and membrane permeability of Pseudomonas fluorescens in a vegetable-based broth

“…Bacterial cells incubated in the absence of CAR and CIN were used as a negative control. The cells were observed using a TCS SP2 AOBS confocal microscope (Leica Microsystems, Wetzlar, Germany) at excitation/emission wavelengths of 480/500 nm for the SYTO 9 stain and 490/635 nm for the PI stain (Leonard et al, 2010). The images collected were analyzed with Lite 2.0.…”

Antibacterial mode of action of <i>Ginkgo biloba</i> leaf essential oil: Effect on morphology and membrane permeability

“…Various synthetic biocides have been used to control microbial growth and to reduce the incidence of food poisoning and spoilage. However, synthetic antimicrobials are sometimes associated with adversary health effects which have encouraged the development of antimicrobial agents of natural origin including essential oils Leonard et al, 2010). Essential oils are complex mixtures of biologically active volatile substances.…”

Antioxidant and Antimicrobial Activities of Clove Bud Essential Oil and Eugenol Nanoparticles in Alcohol-Free Microemulsion

“…Beside the antioxidant activity, CEO and eugenol have well established antimicrobial activity against some food pathogen and spoilage bacteria 16 . This included Salmonella typhi 17 , 18 and some fungi like Candida albicans 19 . CEO also has synergistic interaction with antibiotics against Gram negative bacteria 20 .…”