| Popis: |
The muscle tissue of a commercially important fish, the two-banded sea-bream Diplodus vulgaris, L. was analysed. Fish samples were obtained from two different sites: a polluted area strained by oil refinery discharges and an unpolluted referent area. The lipid content as well as the fatty acid composition of neutral (triglycerides-TG) and polar (phosphatidylethanolamine-PE, phosphatidylcholine-PC, phosphatidylinositol/phosphatidylserine-PIPS) lipid classes was determined. The total lipid content was higher in fish samples obtained from the referent area (1, 13 ± ; ; ; ; 0, 27 %) compared to those from the polluted site (0, 74 ± ; ; ; ; 0, 44 %). We identified 16 different fatty acids. The fatty acid profile was more favourable in fish samples from the referent area, containing more mono-, di- and poly- unsaturates. Unsaturation indexes in polar lipid classes were also higher for fish samples originating from the referent site. Statistically significant differences (p |
