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Black Sea Shad and Red Mullet as sources of omega 3 Fatty Acids

Albena Merdzhanova, Lyubomir Makedonski, Mona Stancheva

Abstract

Purpose: The purpose of this work was to study the seasonal changes of the quantity of omega-3 polyunsaturated fatty acids (n-3 PUFA) in two commonly consumed Black Sea fish species shad (Alosa pontica) and red mullet (Mullus barbatus ponticus). These fish species appear as one of the best sources of omega- 3 polyunsaturated fatty acids.

Materialand methods: The total lipids were extracted by the method of Blight and Dyer.The fatty acid composition was analysed by GC/MS.

Results: Very-Long Chain n-3PUFA (VLCPUFA) eicosapentaenoic acid (EPA, C20:5 n-3) and docosahexaenoic acid (DHA, C22:6 n-3) were presented in the highest concentration in shad in both season, whereas red mullet show an increased n-3 VLCPUFA levels in autumn. The spring shad total content of n-3 FA was significantly higher than the total content of omega 6 (n-6) PUFA, whereas red mullet showed opposite trend. The n-6/n-3 FA ratio was within the recommended range for the analyzed Black Sea fish species.

Conclusion: Shad and red mullet can be classified as fatty fish species. A 100 g portion of fillet delivers between 350 and 2690 mg of sum of EPA and DHA, depending on the season. This is over than 100% of daily recommended amounts of these FAs. Obtained results for omega-3 PUFA content and n-6/n-3 ratio indicates that these Black Sea fish species are an excellent source of these PUFA and would be recommended as part of a healthy or therapeutic diet for adults in Bulgaria during all year.


Keywords

omega-3; EPA; DHA; Human health; Black Sea shad; red mullet

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DOI: http://dx.doi.org/10.14748/ssm.v45i0.927

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About The Authors

Albena Merdzhanova
Medical University of Varna
Bulgaria

Department of Chemistry

Lyubomir Makedonski
Medical University of Varna
Bulgaria

Department of Chemistry

Mona Stancheva
Medical University of Varna
Bulgaria

Department of Chemistry

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