Behaviour of Listeria monocytogenes in packaged fresh mushrooms (Agaricus bisporus).

  1. González-Fandos, E. 1
  2. Olarte, C. 1
  3. Giménez, M. 1
  4. Sanz, S. 1
  5. Simón, A. 2
  1. 1 Universidad de La Rioja
    info

    Universidad de La Rioja

    Logroño, España

    ROR https://ror.org/0553yr311

  2. 2 Servicio de Investigación y Desarrollo Tecnológico Agroalimentario de La Rioja
    info

    Servicio de Investigación y Desarrollo Tecnológico Agroalimentario de La Rioja

    Logroño, España

Revista:
Journal of Applied Microbiology (Print)

ISSN: 1364-5072

Año de publicación: 2001

Volumen: 91

Número: 5

Páginas: 795-805

Tipo: Artículo

DOI: 10.1046/J.1365-2672.2001.01452.X PMID: 11722656 SCOPUS: 2-s2.0-0034782636 WoS: WOS:000172098800005 GOOGLE SCHOLAR

Otras publicaciones en: Journal of Applied Microbiology (Print)

Repositorio institucional: lock_openAcceso abierto Editor

Resumen

Aims: The aim of this study was to evaluate the potential of Listeria monocytogenes to grow in mushrooms packaged in two different types of PVC films when stored at 4°C and 10°C. Methods and Results: Mushrooms were packed in two polymeric films (perforated and nonperforated PVC) and stored at 4°C and 10°C. The carbon dioxide and oxygen content inside the packages, aerobic mesophiles, psychrotrophs, Pseudomonas spp., Listeria monocytogenes, faecal coliforms, Escherichia coli, anaerobic spores and major sensory factors were determined. The mushrooms packaged in nonperforated film and stored at 4°C had the most desirable quality parameters (texture, development stage and absence of moulds). Listeria monocytogenes was able to grow at 4°C and 10°C in inoculated mushrooms packaged in perforated and nonperforated films between 1 and 2 log units during the first 48 h. After 10 d of storage, the populations of L. monocytogenes were higher in mushrooms packaged in nonperforated film and stored at 10°C. Conclusions: MAP followed by storage at 4°C or 10°C extends the shelf life by maintaining an acceptable appearance, but allows the growth and survival of L. monocytogenes. Significance and Impact of the Study: According to this study additional hurdles must be studied in order to prevent the growth of L. monocytogenes.