Eugenol, citral, and hexanal, alone or in combination with heat, affect viability, biofilm formation, and swarming on Shiga-toxin-producing Escherichia coli.

Cindy Joanna Caballero Prado, José Ángel Merino Mascorro, Norma Heredia, Jorge Dávila Aviña, Santos García*

*Autor correspondiente de este trabajo

Producción científicarevisión exhaustiva

10 Citas (Scopus)

Resumen

Shiga-toxin-producing Escherichia coli strains are pathogenic for humans and cause mild to severe illnesses. In this study, the antimicrobial effect of citral, eugenol, and hexanal in combination with heat shock (HS) was evaluated in terms of the growth, biofilm formation, swarming, and expression of virulence genes of STEC serotypes (O157:H7, O103, O111, and O26). Eugenol was the most effective compound against the growth of E. coli strains (MBC = 0.58 to 0.73 mg/mL), followed by citral (MBC = 0.86 to 1.26 mg/mL) and hexanal (MBC = 2.24 to 2.52 mg/mL). Biofilm formation and swarming motility have great variability between STEC strains. Natural compounds—alone or combined with HS—inhibited biofilm formation; however, swarming motility was induced by most treatments. The expression of the studied genes during biofilm formation and swarming under natural antimicrobials was affected but not in a uniform pattern. These treatments could be used to control contamination of STEC and inhibit biofilm formation.
Idioma originalEnglish
Páginas (desde-hasta)599–607
Número de páginas9
PublicaciónFood Science and Biotechnology
Volumen30
N.º4
DOI
EstadoPublished - 9 abr 2021
Publicado de forma externa

Nota bibliográfica

Publisher Copyright:
© 2021, The Korean Society of Food Science and Technology.

All Science Journal Classification (ASJC) codes

  • Ciencias Agrícolas y Biológicas General
  • Bioquímica, Genética y Biología Molecular General
  • Inmunología y Microbiología General

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