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    Inhibition of listeriolypin O and phosphatidylcholine - specific phospholipase C production in Listeria monocytogeres by subinhibitory concentrations of plant essential oils

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    2932.pdf (126.0Kb)
    Date
    2002-07
    Author
    Smith-Palmer, A.
    Stewart, J.
    Fyfe, Lorna
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    Citation
    Smith-Palmer, A., Stewart, J. & Fyfe, L. (2002) Inhibition of listeriolypin O and phosphatidylcholine - specific phospholipase C production in Listeria monocytogeres by subinhibitory concentrations of plant essential oils. Journal of Medical Microbiology, 51(7), pp. 567-574.
    Abstract
    Successful infection by Listeria monocytogenes is dependent upon a range of bacterial extracellular proteins including a cytolysin termed listeriolysin O and phosphatidylcholine-specific phospholipase C. Five plant essential oils--bay, clove, cinnamon, nutmeg and thyme--significantly reduced the production of listeriolysin O by L. monocytogenes. The greatest change was observed after culture with oil of thyme, which reduced haemolysis to 52.1 haemolytic units (HU)/ml compared with 99.8 HU/ml observed with the control. Oil of clove was the only oil that also significantly reduced phosphatidylcholine-specific phospholipase C activity. These changes were observed despite the oils causing no change to the final bacterial concentration or total extracellular protein concentration.
    Official URL
    https://doi.org/10.1099/0022-1317-51-7-567
    URI
    https://eresearch.qmu.ac.uk/handle/20.500.12289/2932
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    • Dietetics, Nutrition and Biological Sciences

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