Takala, Perlette N.; Salmieri, Stéphane; Vu, Khanh Dang et Lacroix, Monique 
ORCID: https://orcid.org/0000-0002-2042-4033
(2011).
Effects of combined treatments of irradiation and antimicrobial coatings on reduction of food pathogens in broccoli florets
Radiation Physics and Chemistry
, vol. 80
, nº 12.
pp. 1414-1418.
DOI: 10.1016/j.radphyschem.2011.07.005.
Résumé
The effect of combined treatment of antimicrobial coatings and γ-radiation on redn. of food pathogens such as Listeria monocytogenes, Escherichia coli, and Salmonella Typhimurium was evaluated in broccoli florets. Broccoli florets were inoculated with pathogenic bacteria at 106 CFU/g. Inoculated florets were then coated with methylcellulose-based coating contg. various mixts. of antimicrobial agents: org. acids (OAs) plus lactic acid bacteria metabolites (LABs), OA plus citrus ext. (CE), OA plus CE plus spice mixt. (SM), and OA plus rosemary ext. (RE). Coated florets were irradiated with various doses (0-3.3 kGy), and microbial analyses were used to calc. the D 10 value and radiosensitive relative. The coating contg. OA plus CE was the most effective formulation for increasing the sensitization of Escherichia coli by 2.4 times as compared to the control without the antimicrobial coating. For Salmonella Typhimurium, coating contg. OA plus LAB was the most effective formulation, increasing radiosensitivity by 2.4 times as well. All antimicrobial coatings had almost the same effect of increasing the sensitivity of Listeria monocytogenes (from 1.31 to 1.45 times) to γ-irradn.
| Type de document: | Article |
|---|---|
| Mots-clés libres: | Antimicrobial coating; Irradiation; Combined treatment; Food pathogens; Relative sensitivity |
| Centre: | Centre INRS-Institut Armand Frappier |
| Date de dépôt: | 29 mars 2024 16:11 |
| Dernière modification: | 29 mars 2024 16:11 |
| URI: | https://espace.inrs.ca/id/eprint/15199 |
Gestion Actions (Identification requise)
 |
Modifier la notice |