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Utilisation d'acides organiques pour contrôler les bactéries Clostridium perfringens au cours du refroidissement par méthode alternative d'un rôti de boeuf reconstitué cuit et emballé sous vide.

Use of organic acids for the control of Clostridium perfringens in cooked vacuum-packaged restructured roast beef during an alternative cooling procedure.

Auteurs : SABAH J. R., THIPPAREDDI H., MARSDEN J. L., et al.

Type d'article : Article

Résumé

This study was conducted to determine how well Clostridium perfringens spores germinate and grow in restructured roast beef treated with different commercial organic salts during an alternative chilling procedure. The meat was prepared according to an industrial recipe. The base meat was treated with sodium citrate at 2 or 4.8% (wt/wt), buffered to a pH of 5.6, 5.0, or 4.4; a 60% (wt/wt) solution of sodium lactate at 2 or 4.8% (wt/wt); sodium acetate at 0.25% (wt/wt); or sodium diacetate at 0.25% (wt/wt). Untreated meat was used as a control. Meat samples were inoculated with a three-strain cocktail of C. perfringens spores. Meat was vacuum packaged in bags and cooked in a stirred water bath to an internal temperature of 75 °C for 20 min, and then the bags were cooled from 54.4 to 4.4 °C within 18 h. Samples were taken after inoculation, after cooking, and after chilling. Cooking was not sufficient to eliminate C. perfringens spores. Over the 18-h cooling period, sodium citrate, sodium lactate, and sodium diacetate reduced the growth of C. perfringens to a growth level that meets US Department of Agriculture performance standards. The use of sodium citrate or sodium lactate at a concentration of 2% (wt/wt) inhibited C. perfringens growth over the 18-h cooling period.

Détails

  • Titre original : Use of organic acids for the control of Clostridium perfringens in cooked vacuum-packaged restructured roast beef during an alternative cooling procedure.
  • Identifiant de la fiche : 2004-1258
  • Langues : Anglais
  • Source : Journal of Food Protection - vol. 66 - n. 8
  • Date d'édition : 08/2003
  • Document disponible en consultation à la bibliothèque du siège de l'IIF uniquement.

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