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    Effect of season on the fatty acid profile of total lipids, phospholipids and triacylglycerols in Mastacembelus mastacembelus (Ataturk Dam Lake, Turkey)
    (Consejo Superior Investigaciones Cientificas-Csic, Inst Grasa, 2018) Kacar, S.; Bashan, M.; Oymak, S. A.
    The present study investigated the lipid content and FA profiles of total lipids, phospholipids (PL) and triacylglycerols (TAG) of Mastacembelus mastacembelus from the Ataturk 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 omega-3 to omega-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 (C18:1 omega-9), palmitoleic acid (C16:1 omega-7), docosahexaenoic acid (DHA, C22:6 omega-3), arachidonic acid (AA, C20:4 omega-6) and docosapentaenoic acid (C22:5 omega-3) in total lipid, C16:0, C18:1 omega-9, AA and DHA in PL, C16:0, C16:1 omega-7, C18:1 omega-9, linoleic acid (LA, C18:2 omega-6), and DHA in TAG extracted from the muscle of M. mastacembelus in all seasons.
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    Öğe
    Fatty acid compositions of colostrum and mature breast milk in Turkey (Mardin)
    (Akademiai Kiado Zrt, 2023) Kacar, S.; Bashan, M.; Keskin, C.
    In this study, 25-25 milk samples (25 colostral and 25 mature) collected at different lactational stages were used to analyse the fatty acid composition of breast milk. A gas-chromatographic method was used to perform and analyse the transmethylation of total milk lipid extracts. The milk samples contained 20 different fatty acids. Palmitic acid (C16:0), stearic acid (C18:0), myristic acid (C14:0), oleic acid (C18:1n-9), and linoleic acid (LA, C18:2n-6) were the major components of total lipid, phospholipid (PL), and triacylglycerol (TAG) fractions. Colostrum had a lower percentage of polyunsaturated fatty acids (PUFAs), a higher percentage of saturated fatty acids (SFAs), and a lower level of eicosapentaenoic acid (EPA, C20:5 n-3) and docosahexaenoic acid (DHA, C22:6 n-3) in total lipid than mature milk. Triacylglycerol and PL fractions between colostrum and mature milk samples did not differ statistically.