The benefit-risk analysis of omega-3 polyunsaturated fatty acids and heavy metals in seven smoked fish species from Siberia

• Published in: Journal of Food Composition and Analysis
• Main Authors: Michail I. Gladyshev, Olesia V. Anishchenko, Olesia N. Makhutova, Olesia V. Kolmakova, Maria Y. Trusova, Vasiliy N. Morgun, Iliada V. Gribovskaya, Nadezhda N. Sushchik
• Other Authors: Институт фундаментальной биологии и биотехнологии, Bio7, Кафедра водных и наземных экосистем
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: 2020
• Subjects: Eicosapentaenoic acid; Docosahexaenoic acid; Coregonus; Hazard quotients; Lead; GenBank; Coregonus tugun; Siberia; Tugun
• Online Access: https://www.sciencedirect.com/science/article/pii/S0889157519318769; http://elib.sfu-kras.ru/handle/2311/142633; https://doi.org/10.1016/j.jfca.2020.103489

In cold-smoked species of genus Coregonus, identified by molecular genetic analysis, contents of fatty acids and heavy metals and arsenic were measured. The highest content of sum of long-chain polyunsaturated fatty acids of omega-3 family (LC-PUFA), namely eicosapentaenoic (EPA) and docosahexaenoic (DHA) fatty acids, 6.53 ± 0.78 mg g−1 wet weight, was characteristic of tugun Coregonus tugun. This is the first quantitative estimation (mg LC-PUFA per g of product) of the nutritive value of smoked fish. Thus, to obtain a daily personal doze of EPA+DHA of 1 g, recommended for prevention of cardiovascular diseases, one needs to consume 153 g of the smoked tugun. Metals' contents did not exceed standards for fish meat except Pb in least cisco Coregonus sardinella. Accordingly, values of hazard quotients, which estimate benefit-risk ratio of fish intake, indicate that most of the smoked fish species are safe product for human nutrition, except least cisco regarding Pb content.