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Antimicrobial effect of essential oils in combinations against five bacteria and their effect on sensorial quality of ground meat

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Ghabraie, Mina; Vu, Khanh Dang; Tata, Lina; Salmieri, Stéphane et Lacroix, Monique (2016). Antimicrobial effect of essential oils in combinations against five bacteria and their effect on sensorial quality of ground meat LWT - Food Science and Technology , vol. 66 . pp. 332-339. DOI: 10.1016/j.lwt.2015.10.055.

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Résumé

The antibacterial activity of 32 Essential Oils (EOs) was assessed against four pathogenic bacteria (Escherichia coli, Listeria monocytogenes, Staphylococcus aureus, and Salmonella Typhimurium) and one spoilage bacterium (Pseudomonas aeruginosa). Agar diffusion, micro-atmosphere and microbroth assays were used to evaluate the antibacterial activity in solid, vapour and liquid phase, respectively. In solid phase, Red thyme, Red bergamot, Ajowan, Summer savory, Chinese cinnamon, and Cinnamon bark had higher inhibitory zone (20-40 mm) against five target bacteria as compared with other EOs. Red thyme, Red bergamot, Ajowan, Summer savory inhibited S. aureus by more than 60 mm. In vapour phase, at 30 μl of tested EOs, Chinese cinnamon and Red bergamot were the only EOs that inhibited all target bacteria with the inhibition zone from 20 to more than 60 mm depending on target bacteria. In liquid phase, Chinese cinnamon showed the best antibacterial activity among all EOs and it inhibited S. aureus and E. coli at low minimum inhibitory concentration (MIC) of 470 ppm. In checkerboard method, combined Chinese cinnamon and Cinnamon bark EOs showed additive antibacterial effects against all bacteria. Sensory evaluation of combined Chinese cinnamon and Cinnamon bark EOs used in cooked meat was conducted and an EO level of 0.05% was the highest organoleptically acceptable. © 2015 Elsevier Ltd.

Type de document: Article
Informations complémentaires: Cited By :1 Export Date: 21 June 2016
Mots-clés libres: Essential oil (EO); Food model; Food pathogen; Interaction of EO; Spoilage bacteria; Bacteria; Escherichia coli; Essential oils; Oils and fats; Pathogens; Salmonella; Anti-bacterial activity; Food modeling; Food pathogens; Listeria monocytogenes; Minimum inhibitory concentration; Pseudomonas aeruginosa; Salmonella typhimurium; Spoilage
Centre: Centre INRS-Institut Armand Frappier
Date de dépôt: 19 juin 2017 20:39
Dernière modification: 19 juin 2017 20:39
URI: https://espace.inrs.ca/id/eprint/4570

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