Journal of Medical Microbiology 2002-07-01

Inhibition of listeriolysin O and phosphatidylcholine-specific production in Listeria monocytogenes by subinhibitory concentrations of plant essential oils.

A Smith-Palmer, J Stewartt, L Fyfe

Index: J. Med. Microbiol. 51(7) , 567-74, (2002)

Full Text: HTML

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.

Related Compounds

  • Pimenta Oil

Related Articles:

Tissue response to anodyne medicaments.

1984-11-01

[Oral Surg. Oral Med. Oral Pathol. 58(5) , 605-9, (1984)]

[Chemical composition and lethal effect of essential oil from Pimenta racemosa (Myrtales: Myrtaceae) on Blatella germanica (Dictyoptera: Blattellidae)].

2007-01-01

[Rev. Cubana Med. Trop. 59(2) , 154-8, (2007)]

More Articles...