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  • Title: Effect of chitosan-whey protein isolated coatings incorporated with tarragon Artemisia dracunculus essential oil on the quality of Scomberoides commersonnianus fillets at refrigerated condition.
    Author: Farsanipour A, Khodanazary A, Hosseini SM.
    Journal: Int J Biol Macromol; 2020 Jul 15; 155():766-771. PubMed ID: 32234442.
    Abstract:
    The purpose of present work was to assess the effects of chitosan (CH) coating in combination with whey protein isolated (WPI) and tarragon essential oil (TEO) on the bacterial (total mesophilic (TMC) bacteria and psychrotrophic (PTC) bacteria), physicochemical (total volatile bases- nitrogen (TVB-N), pH, thiobarbituric acid reactive substances (TBARS), free fatty acid (FFA)) and sensory properties of Scomberoides commersonnianus muscle during storage at refrigerator (4 ± 1 °C). The fillet were randomly divided into seven lots and subjected to the following treatments by immersion: chitosan (CH), whey protein isolate (WPI), whey protein isolate- TEO (WPI-TEO), chitosan-TEO (CH-TEO), chitosan-whey protein isolated (CH-WPI), chitosan/whey protwin isolated+ TEO (CH/WPI + TEO) and controls, then stored at 4 °C. Results indicated that incorporation of WPI and TEO into the material coating developed active coatings with good antimicrobial agent growth inhibition activity against TMC and PTC bacteria. The coated samples also retarded the increase in the contents of TVB-N, pH, TBARS and FFA during storage. The score less than critical score of 3 was made at day 8 and 12 for fillet coated with control and coated samples except of fillets coated with chitosan, respectively. These results confirmed that the incorporation of essential oils or other biopolymers into edible coatings may improve the deterioration of chilled seafood.
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