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Microbiological safety and sensory characteristics of salmon slices processed by the sous vide method.

Author(s) : GONZÁLEZ-FANDOS E., VILLARINO-RODRÍGUEZ A., GARCÍA-LINARES M. C., et al.

Type of article: Article

Summary

The aim of this work was to evaluate the microbiological quality and the sensory characteristics of salmon slices processed by the sous vide method under different conditions of time-temperature when stored at 2 and 10 °C. Three different combinations of time-temperature were studied (5 min/65 °C, 10 min/90 °C and 15 min/90 °C). The product stored at 2 or 10 °C was evaluated periodically to study its sensory quality, microbiological condition and composition. Batches stored at 2 °C had lower growth rates of mesophiles and psychrotrophs. Staphylococcus aureus, Bacillus cereus, Clostridium perfringens and Listeria monocytogenes were not found in any of the samples. Neither aerobic nor anaerobic sporeforming bacteria were detected in the salmon processed at 90 °C for 15 min and stored at 2 °C after 45 days. The heat treatment of 90 °C for 15 min was the most effective for extending the shelf life of fish (>45 days). However, under these conditions the sensory characteristics were not optimal. It can be conclude that the treatment at 90 °C for 15 min was the most effective one to ensure the safety and to extend the shelf life. However, under these conditions the sensory characteristics were not optimal immediately after processing. This study emphasizes the importance of heat treatment and storage temperature in order to ensure safety, particularly in a fat fish, since fat can acts as a protecting agent in the heat resistance of microorganisms.

Details

  • Original title: Microbiological safety and sensory characteristics of salmon slices processed by the sous vide method.
  • Record ID : 2005-0864
  • Languages: English
  • Source: Food Control The International Journal of HACCP and Food Safety - vol. 16 - n. 1
  • Publication date: 2005/01

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