Oussalaili, Mounia; Caillet, Stéphane; Salmieri, Stéphane; Saucier, Linda et Lacroix, Monique 
ORCID: https://orcid.org/0000-0002-2042-4033
(2007).
Antimicrobial effects of alginate-based films containing essential oils on Listeria monocytogenes and Salmonella typhimurium present in bologna and ham
Journal of Food Protection
, vol. 70
, nº 4.
pp. 901-908.
DOI: 10.4315/0362-028x-70.4.901.
Résumé
Bologna and ham slices (300 of each) were inoculated with Salmonella Typhimurium or Listeria monocytogenes at 103 CFU/cm(2). Alginate-based edible films that had been immersed in a 2 or 20% (wt/vol) CaCl2 solution and contained 1% (wt/ vol) essential oils of Spanish oregano (0; Cordothymus capitatus), Chinese cinnamon (C; Cinnamomum cassia), or winter savory (S; Satureja montana) were then applied to slices to control pathogen growth. On bologna, C-based films pretreated with 20% CaCl2 were the most effective against the growth of Salmonella Typhimurium and L. monocytogenes. L. monocytogenes was the more sensitive bacterium to O-, G, and S-based films. L. monocytogenes concentrations were below the detection level (< 10 CFU/ml) after 5 days of storage on bologna coated with O-, C-, or S-based films pretreated with 20% CaCl2. On ham, a 1.85 log CFU/cm(2) reduction of Salmonella Typhimurium (P< = 0.05) was found after 5 days of storage with C-based films regardless of the type of pretreatment used (2 or 20% CaCl2) or when coated with O-based films pretreated with 20% CaCl2. L. monocytogenes was highly resistant in ham, even in the presence of O, C, or S-based films. However, C-based films pretreated with 20% CaCl2 were the most effective against the growth of L. monocytogenes. Evaluation of the availability of active compounds in films revealed a significantly higher release of active compounds in C-based films (P <= 0.05) regardless of pretreatment or meat tested (bologna or ham). O-based films had the lowest release level of active compounds. The release of active compounds from O- and S-based films pretreated with 20% CaCl2 was faster than that in the same respective films pretreated with 2% CaCl2 regardless of the meat type. C-based film pretreated by immersion in a 20% CaCl2 solution was most efficient against both pathogens, and migration of active compounds was higher in C-based films than in O- and S-based films.
| Type de document: | Article |
|---|---|
| Mots-clés libres: | - |
| Centre: | Centre INRS-Institut Armand Frappier |
| Date de dépôt: | 05 nov. 2024 02:22 |
| Dernière modification: | 05 nov. 2024 02:22 |
| URI: | https://espace.inrs.ca/id/eprint/15017 |
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