Table 2.
Fatty acid composition (relative% of the identified FAME) obtained by GC-FID analysis of lipids from the wild and farmed salmon samples of different origins. Results are given as mean ± SD of the total specimens analyzed for each group.
| Fatty Acid | Wild | Farmed | ||
|---|---|---|---|---|
| Canada (n = 26) | Canada (n = 25) | Chile (n = 24) | Norway (n = 25) | |
| 14:0 | 3.86 ± 0.40 c | 1.99 ± 0.47 a | 1.98 ± 0.10 a | 2.14 ± 0.06 b |
| 16:0 | 15.75 ± 1.70 d | 11.64 ± 0.83 b | 12.22 ± 0.78 c | 9.13 ± 0.24 a |
| 16:1 | 3.73 ± 0.58 c | 3.48 ± 0.80 b | 2.78 ± 0.25 a | 2.67 ± 0.07 a |
| 18:0 | 3.61 ± 0.65 b | 3.54 ± 0.22 b | 3.78 ± 0.31 c | 2.60 ± 0.10 a |
| 18:1n9c | 12.89 ± 2.89 a | 42.15 ± 4.42 b | 41.98 ± 1.58 b | 43.89 ± 0.29 c |
| 18:1n7 | 2.19 ± 0.28 a | 3.82 ± 0.33 b | 4.05 ± 0.41 c | 3.81 ± 0.28 b |
| 18:2n6c | 1.76 ± 0.15 a | 14.35 ± 1.52 b | 16.36 ± 0.72 c | 16.31 ± 0.21 c |
| 18:3n3 | 6.72 ± 1.52 c | 5.02 ± 0.57 b | 4.47 ± 0.40 a | 7.79 ± 0.27 d |
| 20:1n9 | 3.57 ± 0.94 c | 2.09 ± 0.65 a | 2.36 ± 0.22 b | 2.17 ± 0.24 a |
| 18:4n3 | 2.51 ± 0.51 c | 0.58 ± 0.14 a | 0.61 ± 0.09 a,b | 0.69 ± 0.08 b |
| 20:2n6 | 0.48 ± 0.10 a | 0.87 ± 0.09 b | 1.04 ± 0.06 c | 0.90 ± 0.06 b |
| 22:1n11 + 22:1n9 | 9.30 ± 2.90 b | 1.10 ± 1.11 a | 0.64 ± 0.27 a | 0.67 ± 0.05 a |
| 20:3n3 + 20:4n6 | 1.83 ± 0.33 d | 0.79 ± 0.11 c | 0.60 ± 0.05 a | 0.66 ± 0.02 b |
| 20:5n3 | 9.12 ± 0.97 c | 2.74 ± 0.42 b | 2.54 ± 0.23 a | 2.69 ± 0.15 ab |
| 24:1n9 | 1.06 ± 0.17 c | 0.24 ± 0.05 b | 0.21 ± 0.02 a | 0.26 ± 0.02 b |
| 22:5n3 | 2.75 ± 0.30 d | 1.37 ± 0.34 c | 1.28 ± 0.13 b | 1.17 ± 0.05 a |
| 22:6n3 | 18.83 ± 2.82 d | 4.23 ± 0.62 c | 3.12 ± 1.11 b | 2.45 ± 0.13 a |
| Σ SFA | 23.25 ± 1.93 d | 17.18 ± 1.42 b | 17.98 ± 1.13 c | 13.6 ± 1.98 a |
| Σ MUFA | 32.73 ± 3.22 a | 52.89 ± 1.76 c | 52.02 ± 1.63 b | 52.41 ± 7.55 c |
| Σ PUFA | 43.95 ± 2.77 c | 29.93 ± 0.62 a | 30.00 ± 1.62 a | 31.99 ± 4.62 b |
| n3/n6 | 16.75 ± 1.61 b | 0.90 ± 0.24 a | 0.66 ± 0.04 a | 0.82 ± 0.02 a |
SFA: saturated fatty acids; MUFA: monounsaturated fatty acids; PUFA: polyunsaturated fatty acids. Different letters indicate significant differences (p < 0.05) between groups in the statistical analysis by one-way analysis of variance (ANOVA).