Dépôt numérique

Food Grade Nanoemulsion Development to Control Food Spoilage Microorganisms on Bread Surface

Ben Fadhel, Yosra; Aragones, Melinda; Martinez, Carolina; Salmieri, Stéphane; Allahdad, Zahra et Lacroix, Monique ORCID logoORCID: https://orcid.org/0000-0002-2042-4033 (2022). Food Grade Nanoemulsion Development to Control Food Spoilage Microorganisms on Bread Surface Journal of Food Science and Technology , vol. 60 , nº 2. pp. 742-751. DOI: 10.1007/s13197-022-05660-5.

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In this study, the effect of emulsifier mixture and their concentrations on the development of nanoemulsion was studied. The impact of sonication and microfluidization processing conditions on the physicochemical properties and in vitro antimicrobial activity was also evaluated. The optimal nanoemulsion formulation was then evaluated on bread surface against B. subtilis. Results showed that a hydrophilic-lipophilic balance HLB = 12 and emulsifier: oil ratio of 1:1 allowed the formation of stable nanoemulsion. Also, both microfluidization and sonication allowed the formation of nanoscale-emulsion. Sonication treatment for 10 min allowed a maintain the total flavonoid content and a slight reduction of total phenol content. Furthermore, employing sonication resulted to the lowest polydispersity index suggesting more stable nanoemulsion. Nanoscale-emulsion showed a good in vitro antimicrobial activity against L. monocytogenes and E. coli. The application of nanoemulsion on bread surface inoculated with B. subtilis showed a delay of the decay.

Type de document: Article
Mots-clés libres: Antimicrobial activity; Encapsulation; Food safety; Nanoemulsion; Stability
Centre: Centre INRS-Institut Armand Frappier
Date de dépôt: 17 oct. 2023 15:36
Dernière modification: 17 oct. 2023 15:36
URI: https://espace.inrs.ca/id/eprint/13344

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