Effect of Gelatin/Hydroxypropyl-β-Cyclodextrin Bioactive Edible Coating Containing Nanoemulsion of Nettle Essential Oil on the Shelf Life of Turkey Meat
is the evaluation of the effect of gelatin/Hydroxypropyl-β-cyclodextrin coating containing nanoemulsion of nettle (Urtica dioica L. ( on chemical, microbial and sensory properties of turkey meat during storage.
Chemical compositions of nettle essential oil were detected using Gas Chromatography-Mass Spectrometry. Samples of turkey meat coated with 1.5% (V/V) nanoemulsion of nettle, coated with gelatin/hydroxypropyl-β-cyclodextrin (HPBC) containing nanoemulsion of nettle, packed in cellophane and without coating (Control) were stored at 4°C. Their physical and chemical (weight loss, total volatile basic nitrogen, and thiobarbituric acid reactive substances), microbial and sensory properties were evaluated at different intervals (0, 5, 10, 15, 20 days) of storage.
The results of Gas Chromatography-Mass Spectrometry showed the presence of effective compounds with antimicrobial and antioxidant activities especially Carvacrol (51.71%). According to the results, lower amounts of weight loss, total volatile basic nitrogen, mesophilic, psychrophilic bacteria, molds, and yeasts were observed in turkey meat samples treated with nanoemulsion of nettle essential oil in comparison to the control during storage (p˂0.05) and the highest sensory scores were gained.
Application of gelatin/HPBC coating containing nanoemulsion of nettle essential oil had a desirable effect on the control of chemical and microbial spoilage, therefore it can be used for increasing the shelf life of turkey meat in the food industry.
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