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   the inhibition of escherichia coli o157:h7 inoculated in hamburger using a chitosan/cellulose nanofiber film containing thenanoemulsion of trachyspermum ammi and bunium persicum essential oils  
   
نویسنده soltaninezhad batool ,khanzadi saeid ,hashemi mohammad ,azizzadeh mohammad
منبع journal of human, environment and health promotion - 2020 - دوره : 6 - شماره : 1 - صفحه:30 -34
چکیده    background: antimicrobial compounds have numerous applications, and essential oils could be used in edible films to enhance the food shelf life. this study aimed to assess the inhibitory effects of a chitosan/cellulose nanofiber (cnf) film containing the nanoemulsions of bunium persicum essential oil (nbpeo) and trachyspermum ammi essential oil (nteo) on escherichia coli o157:h7 inoculated in hamburger during storage (4°c). methods: after inoculation, the hamburger samples were classified into three treatment groups of, control, chitosan containing 7.5% cnf (ch-cnf), and chitosan containing 7.5% cnf enriched with 1.6% nteo and 0.8% nbpeo (ch-cnf-neo). the samples were preserved at the temperature of 4°c, and the bacterial counts were determined on days zero, three, six, nine, and 12. data analysis was performed using bonferroni post-hoc test and repeated measures anova. results: the mean e.coli o157:h7 count significantly decreased in the treatments groups compared to the control group. in addition the ch-cnf-neo film exerted the most significant inhibitory effects on the growth of e. coli o157: h7 in the hamburger samples. conclusion: according to the results, the ch-cnf-neo film could effectively reduce the growth of e. coli o157:h7 in hamburger. therefore, ch-cnf-neo film could be used to effectively increase the safety of meat products against e. coli o157: h7.
کلیدواژه trachyspermum ammi ,bunium persicum ,chitosan ,escherichia coli o157:h7 ,nanoemulsion
آدرس ferdowsi university of mashhad, faculty of veterinary medicine, department of food hygiene and aquaculture, iran, ferdowsi university of mashhad, faculty of veterinary medicine, department of food hygiene and aquaculture, iran, mashhad university of medical sciences, faculty of medicine, medical toxicology research center, department of nutrition, iran, ferdowsi university of mashhad, faculty of veterinary medicine, department of clinical science, iran
پست الکترونیکی azizzadeh@gmail.com
 
 

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