Antimicrobial Effects of Essential Oils, Nisin, and Irradiation Treatments against Listeria monocytogenes on Ready-to-Eat Carrots

Ndoti-Nembe, Aude; Vu, Khanh Dang; Doucet, Nicolas ORCID: https://orcid.org/0000-0002-1952-9380 et Lacroix, Monique (2015). Antimicrobial Effects of Essential Oils, Nisin, and Irradiation Treatments against Listeria monocytogenes on Ready-to-Eat Carrots Journal of Food Science , vol. 80 , nº 4. M795-799. DOI: 10.1111/1750-3841.12832.

Prévisualisation

PDF (Le document est disponible en version article soumis dans le mémoire à partir de la page 64 à l'adresse URL suivante: http://espace.inrs.ca/2027/) - Image de couverture Télécharger (235kB) | Prévisualisation

Résumé

The symbols and special characters used in the original abstract could not be transcribed due to technical problems. Please use the PDF version to read the abstract. The study aimed at using essential oil (EO) alone or combined EO with nisin and low dose gamma-irradiation to evaluate their antibacterial effect against Listeria monocytogenes during storage of carrots at 4 degrees C. Minicarrots were inoculated with L. monocytogenes at a final concentration of approximately 7 log CFU/g. Inoculated samples were coated by nisin at final concentration of 10(3) International Unit (IU)/mL or individual mountain savory EO or carvacrol at final concentration of 0.35%, w/w) or nisin plus EO. The samples were then irradiated at 0, 0.5, and 1.0 kGy. The treated samples were kept at 4 degrees C and microbial analysis of samples were conducted at days 1, 3, 6, and 9. The results showed that coating carrots by carvacrol plus nisin or mountain savory plus nisin and then irradiating coated carrots at 1 kGy could reduce L. monocytogenes by more than 3 log at day 1 and reduced it to undetectable level from day 6. Thus, the combined treatments using nisin plus carvacrol or nisin plus mountain savory and irradiation at 1.0 kGy could be used as an effective method for controlling L. monocytogenes in minicarrots.

Type de document:	Article
Mots-clés libres:	carvacrol; Gamma irradiation; Listeria monocytogenes; minicarrots;mountain savory essential oil
Centre:	Centre INRS-Institut Armand Frappier
Date de dépôt:	18 mai 2017 19:36
Dernière modification:	08 juin 2023 17:57
URI:	https://espace.inrs.ca/id/eprint/3234

Gestion Actions (Identification requise)

Modifier la notice