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Physio-chemical properties of antimicrobial film based on polycaprolactone and nanocellulose and their capacity to inhibit salmonella typhimurium on vegetables

Boumail, Afia; Salmieri, Stéphane; Klimas, Émilie; Tawema, Pamphile O.; Bouchard, Jean; Lacroix, Monique (2013). Physio-chemical properties of antimicrobial film based on polycaprolactone and nanocellulose and their capacity to inhibit salmonella typhimurium on vegetables J-for-Journal of Science & Technology for Forest Products and Processes , vol. 3 , nº 1. p. 45-49.

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Résumé

Antimicrobial diffusion films (ADFs) were developed for food applications. The ADFs were composed of two external layers of polycaprolactone and one internal layer of nanocellulose (NCC)-reinforced methylcellulose (MC) matrix. Two antimicrobial formulations (A and B) were incorporated into the MC layer and compared through evaluation of film properties. The resulting ADFs were inserted as diffusion devices into vegetable packages, and samples were stored at 4 degrees C for 14 days. Microbiological tests in the presence of ADFs were performed against Salmonella Typhimurium. The study then focused on characterizing the release of total phenols (TP) from ADFs by Folin-Ciocalteu's method as well as their physico-chemical properties. Results indicated a controlled release of antimicrobials into the headspace. Gas-barrier properties were also evaluated on the day of fabrication.

Type de document:
Mots-clés libres: whole beef muscle; essential oils; listeria-monocytogenes; escherichia-coli; composite films; fresh broccoli; preservation; growth; cellulose; chitosan
Centre: Centre INRS-Institut Armand Frappier
Date de dépôt: 19 juin 2017 20:07
Dernière modification: 19 juin 2017 20:07
URI: http://espace.inrs.ca/id/eprint/2866

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