Actividad Antibacterial de Aceites Esenciales en Superficies Inertes de la Producción de Quesos

Translated title of the contribution: Antibacterial Activity of Essential Oils on Inert Surfaces of Cheese Production

Research output: Contribution to conferencePaper


Dairy products, due to their high moisture and nutritional components, are suitable substrates for the development of pathogens and the transmission of diseases. The antibacterial activity of essential oils (EO) has been demonstrated by inducing imbalance in the permeability of the cytoplasmic membrane, however, due to their volatility and insolubility in water, they have been limited to the area of flavorings in the food industry. The aim was evaluating activity the essential oils (EO) of dill (Anethum graveolens) and nettle (Urtica dioica) on bacterial strains of Listeria monocytogenes and Escherichia coli. The agar diffusion method was used and directly on two inert surfaces (IS): wood and plastic provided by an artisanal cheese: wood and plastic provided by an artisanal cheese dairy. Characterization of the EO was by GC/MS. For the surface tests, the bacterial strains were inoculated at Macfarlan scale simulating the environmental conditions of the cheese ripening process. Before and after application of the EO, viability was verified by plate counting on selective media and electron microscopy. In the diffusion agar results, the dill presented a significant inhibition halo on L. monocytogenes (< P 0.05). And nettle did not show inhibition on any strain. However, when the EO were applied on IS, 100% inhibition was shown for both strains. The presence of phytocomponents found in the EO anethole, limonene and terpenes, support the antibacterial activity according to previous references.
Translated title of the contributionAntibacterial Activity of Essential Oils on Inert Surfaces of Cheese Production
Original languageSpanish (Ecuador)
StatePublished - 23 Aug 2023
EventCongreso Latinoamericano de Microbiología - EC
Duration: 23 Aug 202325 Aug 2023


ConferenceCongreso Latinoamericano de Microbiología
Internet address


  • Antibacterial
  • E. coli
  • Essential oils
  • L. monocytogenes
  • Dairy
  • Cheese

CACES Knowledge Areas

  • 118A Agricultural and livestock production


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