Journal
FOODS
Volume 12, Issue 4, Pages -Publisher
MDPI
DOI: 10.3390/foods12040764
Keywords
northern pike; fatty acids; northwestern Siberia; spatial variations; traditional diet
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We analyzed the fatty acid composition of northern pike muscles from Gyda River in Siberia, Russia using gas-liquid chromatography. Out of the 43 identified fatty acids, 23 accounted for 99.3% of the total content. The fatty acid profile differed from other pike populations, possibly due to diet variations. Pike flesh had desirable nutritional qualities with a low n-6/n-3 ratio, low atherogenic and thrombogenic indices, and a high ratio of hypocholesterolemic to hypercholesterolemic fatty acids, making it a suitable replacement for traditional fish sources.
We assayed the fatty acid composition of muscles of the northern pike Esox lucius Linnaeus, 1758 inhabiting the Gyda River, Siberia, Russia using gas-liquid chromatography. Of 43 fatty acids identified in the pike samples, 23 fatty acids accounted for 99.3% of the total content. The most abundant saturated fatty acids (SFA, 31.6%) were palmitic (C16:0, 20.0%) and stearic (C18:0, 7.3%) acids. Among monounsaturated fatty acids (MUFA, 15.1%), oleic acid (C18:1n9, 10.2%) and palmitoleic acid (C16:1, 4.1%) demonstrated the highest levels. The most represented polyunsaturated fatty acids (PUFA, 53.3%) were arachidonic acid (C20:4n-6, 7.6%), eicosapentaenoic acid (EPA, C20:5n-3, 7.3%), and docosahexaenoic acid (DHA, C22:6n-3, 26.3%). The fatty acid profile of specimens from the Gyda River was different in comparison to profiles found in other pike populations, most likely due to different diets. Pike flesh has good nutrition quality in terms of a low n-6/n-3 ratio (0.36), low atherogenic (0.39), and thrombogenic (0.22) indices, and a high ratio of hypocholesterolemic to hypercholesterolemic fatty acids (2.83), and this species can be recommended as a replacement or alternative to other fish sources in traditional diets.
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