The effects of incorporated resveratrol in edible coating based on sodium alginate on the refrigerated trout (Oncorhynchus mykiss) fillets’ sensorial and physicochemical features

  • Behnaz Bazargani-GilaniEmail author
  • Mohammadreza Pajohi-Alamoti


The goal of this study was examining the effects of sodium alginate coating (SA) containing resveratrol (R) on enhancement rainbow trout fillets’ shelf-life. Treatments of the study were as follows: control, SA, SA-R 0.001% and SA-R 0.003%. Storage of the samples was done for 15 days at 4 °C. To analyze samples, 3-day intervals were used. Compared to the uncoated trout, the values of pH, peroxide and K were significantly lower in the coated samples (p < 0.05). R enhanced the impacts of alginate on extending the samples’ shelf life. Sensory analyses showed that R improved the sensory scores significantly (p < 0.05); besides, it did not show more changes on the sensory features and was invisible in the surface of samples. In the conclusion, R was suggested to be a strong alternative to synthetic antioxidants in refrigerated trout fillet in very low concentrations with many health benefits.


Resveratrol Sodium alginate coating Rainbow trout fillet Strong alternative Synthetic antioxidants 



Many thanks for all who financially supported this work.

Compliance with ethical standards

Conflict of interests

Based on the author’ declaration, there is no conflict of interests in terms of the publication of this paper.


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Copyright information

© The Korean Society of Food Science and Technology 2019

Authors and Affiliations

  1. 1.Department of Food Hygiene and Quality Control, Faculty of Veterinary ScienceBu-Ali Sina UniversityHamedanIran

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