Evaluation of Antioxidant Effects of Water and Ethanolic Extracts of Iranian Pomegranate Seed on Lipid Quality of Trout Fillet and Determining the Level of Perishability at 2-4 ° C

Authors
Abstract
Background and Aims

Because of unsaturated fatty acid content, trout and fish products are highly perishable. For this reason, preservatives are used to prevent or delay spoiling during storage. The aim of this study was determination of antioxidant activities of pomegranate seeds extracts on lipid quality of trout fillet stored at 2-4°C.

Materials and Methods

Prepared fish fillets were divided into two groups. One group was trout fillet without extract (control) and one in pomegranate seeds extracts that were stored in refrigerator for 6 days. Chemical tests such as Peroxide Value (PV), Thiobarbituric Acid Reactive Substances (TBARS), Total Volatile Basic Nitrogen (TVB-N) and Free Fatty Acids (FFA) were used to determine perishability of trout fillet.

Results

The PV, TBA, TVB-N and FFA were significantly (P < 0.05) lowest in the samples treated with ethanolic extracts of pomegranate seeds as compared to control group. (PV = 2.62 meq o2/kg, TBA = 1.26 mg MDA/kg, TVB-N = 22.13 mg/100g and FFA = 1.2 percent Oleic acid).

Conclusion

The result of this study demonstrated that pomegranate seeds extracts were efficiency to prevent lipid oxidation in trout fillet stored at refrigerator temperature.


* Corresponding Author: Tehran University of Medical Sciences, School of Public Health.

Email: Salehia15@gmail.com
Keywords

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