Akademik Veri Yönetim Sistemi
2nd International Symposium on Biodiversity Research, Rize, Türkiye, 18 Kasım 2020, ss.256
The aim of present study was to compare fatty acid composition of Rize trout (Salmo rizeensis),
Black Sea trout (Salmo coruhensis), and Caspian trout (Salmo caspius). These species were obtained from Ballı
stream, Sarayköy stream (both are coastal streams in northeastern Anatolia, the Black Sea basin), and
Toros stream (a drainage of Kura River, Caspian Sea basin), respectively. Gas chromatography/mass
spectrometry (GC-MS) was used to identify fatty acid composition of samples. The composition of fatty
acids showed that total monounsaturated fatty acids (ΣMUFA) in S. rizeensis and S. coruhensis were the
highest, followed by saturated (ΣSFA) and polyunsaturated (ΣPUFA). However, the dominant fatty acid
group in S. caspius was SFA, followed by MUFA and PUFA. The differences among SFA, PUFA/SFA,
EPA+DHA, Σn3, Σn6 and Σn6/ Σn3 values of trout species were statistically significant (P<0.05). The
most dominant fatty acids in all species were palmitic acid (C16: 0) in SFAs, oleic acid (C18: 1n9c) in
MUFAs, linoleic acid (18:2n6c), EPA (C20: 5n3) and DHA (22: 6n3) in PUFAs. It was determined that
the n6/n3 and PUFA/SFA ratios were greater than those recommended by the Department of Health of
the UK. Moreover, the atherogenic (AI) and thrombogenic (TI) indices of samples were in accordance
with the limit values reported by international organizations. This study determined that all three trout
species are a good nutritional source for human consumption in terms of EPA, DHA and n-3 PUFA
contents.