DETECTION OF ENTEROTOXIN GENES OF Staphylococcus aureus ISOLATES FROM FOOD CONTACT SURFACES IN THE DAIRY INDUSTRY OF JALISCO, MEXICO

Autores/as

  • María Guadalupe Avila-Novoa Laboratorio de Alimentos, División de Desarrollo Biotecnológico, Centro Universitario de la Ciénega, Universidad de Guadalajara, Av. Universidad 1115, Col. Linda Vista, 47820, Ocotlán, Jalisco, México.
  • Maricarmen Iñiguez-Moreno Laboratorio de Alimentos, División de Desarrollo Biotecnológico, Centro Universitario de la Ciénega, Universidad de Guadalajara, Av. Universidad 1115, Col. Linda Vista, 47820, Ocotlán, Jalisco, México.
  • Jean Pierre González-Gómez Laboratorio de Alimentos, División de Desarrollo Biotecnológico, Centro Universitario de la Ciénega, Universidad de Guadalajara, Av. Universidad 1115, Col. Linda Vista, 47820, Ocotlán, Jalisco, México.
  • Eduardo Zacarías-Castillo Laboratorio de Alimentos, División de Desarrollo Biotecnológico, Centro Universitario de la Ciénega, Universidad de Guadalajara, Av. Universidad 1115, Col. Linda Vista, 47820, Ocotlán, Jalisco, México.
  • Pedro Javier Guerrero-Medina Laboratorio de Alimentos, División de Desarrollo Biotecnológico, Centro Universitario de la Ciénega, Universidad de Guadalajara, Av. Universidad 1115, Col. Linda Vista, 47820, Ocotlán, Jalisco, México.
  • J. Jesús Padilla-Frausto Laboratorio de Alimentos, División de Desarrollo Biotecnológico, Centro Universitario de la Ciénega, Universidad de Guadalajara, Av. Universidad 1115, Col. Linda Vista, 47820, Ocotlán, Jalisco, México.
  • Claudia Luz Navarro-Villarruel, Laboratorio de Alimentos, División de Desarrollo Biotecnológico, Centro Universitario de la Ciénega, Universidad de Guadalajara, Av. Universidad 1115, Col. Linda Vista, 47820, Ocotlán, Jalisco, México.
  • Melesio Gutiérrez-Lomelí Laboratorio de Alimentos, División de Desarrollo Biotecnológico, Centro Universitario de la Ciénega, Universidad de Guadalajara, Av. Universidad 1115, Col. Linda Vista, 47820, Ocotlán, Jalisco, México.

DOI:

https://doi.org/10.18633/biotecnia.v20i2.602

Palabras clave:

Staphylococcus aureus, enterotoxin genes, food contact surface-stainless steel, food contact surface-polypropylene

Resumen

Staphylococcus aureus is widely distributed in nature, and two of the main sources of S. aureus contamination in the food industry are food handlers and Food Contact Surfaces (FCS). This pathogen is responsible for outbreaks of foodborne illnesses associated with the consumption of milk and dairy products. The aim of this study was to determine the prevalence of toxin-encoding genes in S. aureus isolates from FCS in the Jalisco dairy industry. The presence of enterotoxin genes was investigated by PCR. In this study, we identify 84 S. aureus isolates. Overall, 35.7% of the isolates tested positive for at least one of the nine studied enterotoxin genes, and 15.4% harbored 2-4 enterotoxin genes. The most predominant genes were sej and sed. This study demonstrates that FCS are a source of contamination for this food rotation and that there is a diversity of enterotoxin genes in S. aureus isolates. Therefore, vigilant food safety practices need to be implemented regarding FCS to prevent foodborne infections and intoxications due to S. aureus contamination.

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Citas

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Publicado

2018-05-03

Cómo citar

Avila-Novoa, M. G., Iñiguez-Moreno, M., González-Gómez, J. P., Zacarías-Castillo, E., Guerrero-Medina, P. J., Padilla-Frausto, J. J., … Gutiérrez-Lomelí, M. (2018). DETECTION OF ENTEROTOXIN GENES OF Staphylococcus aureus ISOLATES FROM FOOD CONTACT SURFACES IN THE DAIRY INDUSTRY OF JALISCO, MEXICO. Biotecnia, 20(2), 72–78. https://doi.org/10.18633/biotecnia.v20i2.602

Número

Vol. 20 Núm. 2 (2018): Mayo-Agosto

Sección

Artículos originales

Licencia

 

La revista Biotecnia se encuentra bajo la licencia Atribución-NoComercial-CompartirIgual 4.0 Internacional (CC BY-NC-SA 4.0) 

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