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Öğe Determination of fatty acid profiles of total, neutral, and polar lipids in different tissues of Vimba vimba (L., 1758) from Egirdir Lake (Isparta, Turkey)(TUBITAK SCIENTIFIC & TECHNICAL RESEARCH COUNCIL TURKEY, 2013) Gorgun, Salih; Akpinar, Nukhet; Zengin, Gokhan; Akpinar, Mehmet Ali; Gunlu, Ali; Guler, Gokalp Ozmen; Aktumsek, ApdurahmanFatty acid profiles of total, neutral, and polar lipids in the liver, muscle, and intestine of female individuals of Vimba vimba (L., 1758) were determined by gas chromatography. C16:0, C16: 1 n-7, C18:1 n-7, and C18:1 n-9 were the most abundant fatty acids in total and neutral lipids in all tissues investigated. In addition to these acids, C20:4 n-6 (arachidonic acid) and C22:6 n-3 (docosahexaenoic acid) were the other fatty acids having high percentages in the polar lipid fraction of the tissues. The highest and lowest n-3 to n-6 ratios, which are a good indicator of the quality of fish oils, were determined in the muscle (1.68) and liver (0.68) in the polar lipid fraction, respectively. It was determined that the species had low levels of the n-3 forms of polyunsaturated fatty acids in the investigated tissues. For a better understanding of fatty acid metabolism of V. vimba, more detailed studies are required in terms of feeding experiments.Öğe Determination of the Fatty Acid Compositions of Four Onobrychis Species from Turkey(SPRINGER, 2019) Gorgun, Salih; Akpinar, Nukhet; Tekin, Mehmet; Karakas, Hilal…Öğe Fatty Acid Composition and omega 3/omega 6 Ratios in the Muscle of Wild and Reared Oncorhynchus mykiss(SPRINGER, 2015) Akpinar, Nukhet; Akpinar, Mehmet Ali; Gorgun, Salih; Akpinar, Ali EmreThe fatty acid composition and omega 3/omega 6 ratios in the muscle of wild and reared Oncorhynchus mykiss (rainbow trout) in the Tohma River (Sivas, Turkey) were determined by gas chromatography. There were quantitative differences between some fatty acids in the muscles of wild and reared rainbow trout. The most abundant fatty acids in both wild and reared fish were palmitic acid (16:0), stearic acid (18:0), oleic acid (18:1 omega 9), and docosahexaenoic acid (22:6 omega 3). The levels of omega 3 series and omega 6 series fatty acids in wild fish muscle were higher than in the reared fish. The omega 3/omega 6 ratios in muscle were found to be 1.92 (reared fish) and 2.28 (wild fish). The higher omega 3/omega 6 ratio in the wild fish might be a result of the season and the richer feeding conditions in the river under natural conditions. However, daily and continuously reared fish might be turned into more beneficial food for human consumption.Öğe Fatty acid composition of Gryllus campestris L. (Orthoptera: Gryllidae) during its various developmental stages(2003) Akpinar, M. Ali; Akpinar, Nukhet; Gencer, Lutfiye; Turkoglu, SifaThe fatty acid composition of Gryllus campestris was analyzed by gas chromatography at successive stages during development and including own eggs. Qualitative analysis revealed the presence of 14 fatty acids (carbon chain length from C12 through C20) in addition to unidentified fatty acids during all stages. There were no differences between fatty acid profiles of eggs, all nymphs, male and female adults. The major components of total fatty acid composition were C16:0, C18:0, C18:1, C18:2 and C18:3. These fatty acids were found to comprise 88-92% of the total fatty acids in all nymphs, male and female adults. The content of C16:0, C18:0, C18:1 and C18:3 decreased in eggs and emerged nymph in contrast; the content of C16:1, C18:2 and C20 fatty acids increased. Certain C20 polyunsaturated fatty acids (PUFA) (C20:2, C20:3 and C20:4) were detected in the nymphs and adults. Decreases were observed in the contents of total saturated and total polyunsaturated fatty acids, but total monosaturated fatty acid content showed an increase as from the first nymph stage of both sexes. It is suggested that the fatty acids C16:0, C18:1, C18 and C20 PUAFs are necessary for normal development of G. campestris during their life stages.Öğe Total Lipid Content and Fatty Acid Composition of Seeds of Some Wild Achillea Species(Springer, 2019) Zonuz, Nuray; Akpinar, Nukhet; Donmez, Erol; Zengin, Gokhan; Akpinar, Ali Emre; Akpinar, Mehmet Ali[Abstract Not Available]
