Effect of season on the fatty acid profile of total lipids, phospholipids and triacylglycerols in Mastacembelus mastacembelus (Atatürk Dam Lake, Turkey)

• Published in: Grasas y Aceites
• Main Authors: Kaçar, S., Başhan, M., Oymak, S. A.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Consejo Superior de Investigaciones Científicas 2018
• Subjects: Fatty acids; Gas chromatography; Mastacembelus mastacembelus; Phospholipid; Seasonal changes; Triacylglycerol; Ácidos grasos; Cambios estacionales; Cromatografía de gases; Fosfolípido; Triglicéridos; Dam Lake; Arctic
• Online Access: https://grasasyaceites.revistas.csic.es/index.php/grasasyaceites/article/view/1709; https://doi.org/10.3989/gya.1108172

The present study investigated the lipid content and FA profiles of total lipids, phospholipids (PL) and triacylglycerols (TAG) of Mastacembelus mastacembelus from the Atatürk Dam Lake (Turkey). The results showed that the total lipid content of the dorsal muscle varied seasonally from 0.50% to 3.59%. Wide ranges of saturated fatty acids (SFAs) (36.21 to 50.52%) and polyunsaturated fatty acids (PUFAs) (25.22 to 42.02%) were found in the PL fraction. However, higher monounsaturated fatty acids (MUFAs) (37.63 to 45.07%) and SFA (34.71 to 38.82%) were found in TAG (triacylglycerol). The ratios of ω-3 to ω-6 PUFA ranged from 0.65 to 1.32 and 1.07 to 3.48 in PL (phospholipid) and TAG fraction, respectively. The results also showed that the major components were palmitic acid (C16:0), stearic acid (C18:0), oleic acid (C18:1ω-9), palmitoleic acid (C16:1ω-7), docosahexaenoic acid (DHA, C22:6ω-3), arachidonic acid (AA, C20:4ω-6) and docosapentaenoic acid (C22:5ω-3) in total lipid, C16:0, C18:1ω-9, AA and DHA in PL, C16:0, C16:1ω-7, C18:1ω-9, linoleic acid (LA, C18:2ω-6), and DHA in TAG extracted from the muscle of M. mastacembelus in all seasons. En el presente estudio se investigó el contenido de lípidos y los perfiles de ácidos grasos (FA) de lípidos totales, fosfolípidos (PL) y trigliceridos (TAG) de Mastacembelus mastacembelus del lago Atatürk Dam (Turquía). Los resultados mostraron que el contenido lipídico total del músculo dorsal varió estacionalmente de 0,50% a 3,59%. Se encontraron amplios rangos de ácidos grasos saturados (SFA) (36,21 a 50,52%) y ácidos grasos poliinsaturados (PUFA) (25,22 a 42,02%) en la fracción PL. Sin embargo, se encontraron ácidos grasos monoinsaturados (MUFA) más altos (37,63 a 45,07%) y SFA (34,71 a 38,82%) en TAG (triacilglicerol). Las relaciones de AGPI ω-3 a ω-6 variaron de 0,65 a 1,32 y de 1,07 a 3,48 en PL (fosfolípido) y fracción de TAG, respectivamente. Los resultados también muestran que los principales componentes fueron ácido palmítico (C16:0), esteárico (C18:0), oleico (C18:1 ω-9), palmitoleico (C16:1 ω-7), ácido docosahexaenoico (DHA), C22:6 ω-3), ácido araquidónico (AA, C20: 4 ?-6) y ácido docosapentaenoico (C22: 5 ω-3) en lípidos totales, C16:0, C18:1 ω-9, AA y DHA en PL, C16:0, C16:1 ω-7, C18:1 ω-9, ácido linoleico (LA, C18:2 ω-6) y DHA en el TAG extraído del músculo de M. mastacembelus en todas las estaciones.