TABLE 1.
FA composition (% of total FA content) and amount of FA (mg per 100 g of muscle) in farmed (n = 3) and wild (n = 3) Atlantic salmon and salmon feed (n = 4)
| Fatty acid | Wild salmon | Farmed salmon | Feed | |||
|---|---|---|---|---|---|---|
| Composition (%) | Amount (mg/100 g) | Composition (%) | Amount (mg/100 g) | Composition (%) | Amount (mg/100 g) | |
| C12:0 | 0.05 ± 0.01 a | 1.38 ± 0.15 | n.d. | n.d. | n.d. | n.d. |
| C13:0 (4,8,12‐trimethyl) b | 0.063 ± 0.004 | 1.71 ± 0.12 | n.d. | n.d. | n.d. | n.d. |
| C14:0 | 3.43 ± 0.49 | 93.7 ± 13.2 | 1.71 ± 0.42 | 145.5 ± 35.0 | 2.18 ± 0.09 | 653.1 ± 26.2 |
| C14:0 (13‐methyl) | 0.14 ± 0.02 | 3.71 ± 0.53 | 0.03 ± 0.01 | 2.71 ± 0.62 | 0.07 ± 0.01 | 19.53 ± 1.69 |
| C14:0 (12‐methyl) | 0.09 ± 0.01 | 2.33 ± 0.35 | 0.018 ± 0.004 | 1.57 ± 0.33 | 0.027 ± 0.002 | 8.04 ± 0.50 |
| C15:0 | 0.30 ± 0.05 | 8.13 ± 1.42 | 0.09 ± 0.02 | 7.94 ± 1.75 | 0.19 ± 0.01 | 56.11 ± 3.32 |
| C16:0 | 17.43 ± 2.18 | 475.7 ± 59.5 | 9.61 ± 2.22 | 819 ± 189 | 10.32 ± 0.30 | 3,097.4 ± 91.5 |
| C17:0 | 0.43 ± 0.05 | 11.67 ± 1.27 | 0.18 ± 0.04 | 15.44 ± 3.77 | 0.34 ± 0.03 | 101.22 ± 8.77 |
| C18:0 | 4.31 ± 0.56 | 117.7 ± 15.4 | 2.94 ± 0.75 | 250.4 ± 64.1 | 4.37 ± 0.13 | 1,312 ± 38.9 |
| C20:0 | 0.08 ± 0.01 | 2.22 ± 0.29 | 0.29 ± 0.08 | 24.54 ± 6.68 | 0.49 ± 0.02 | 146.34 ± 7.20 |
| C22:0 | n.d. | n.d. | 0.09 ± 0.01 | 7.81 ± 0.69 | 0.23 ± 0.02 | 70.27 ± 4.88 |
| C24:0 | n.d. | n.d. | 0.035 ± 0.005 | 2.95 ± 0.42 | 0.119 ± 0.004 | 35.71 ± 1.10 |
| ∑ SFA | 26.32 ± 3.38 | 718.2 ± 92.3 | 14.98 ± 3.55 | 1,278 ± 303 | 18.33 ± 0.61 | 5,500 ± 184 |
| C16:1n‐9c | 0.13 ± 0.03 | 3.66 ± 0.83 | 0.11 ± 0.03 | 9.63 ± 2.73 | 0.09 ± 0.01 | 25.77 ± 2.45 |
| C16:1n‐7c | 6.39 ± 1.26 | 174.5 ± 34.5 | 2.57 ± 0.66 | 219.1 ± 56.1 | 3.12 ± 0.11 | 935.8 ± 32.2 |
| C16:1n‐5c | 0.19 ± 0.03 | 5.14 ± 0.73 | n.d. | n.d. | n.d. | n.d. |
| C17:1n‐7c | 0.26 ± 0.05 | 6.95 ± 1.25 | 0.08 ± 0.02 | 6.78 ± 2.02 | 0.09 ± 0.01 | 27.50 ± 2.23 |
| C18:1n‐12c | 0.78 ± 0.27 | 21.32 ± 7.26 | 0.12 ± 0.06 | 10.25 ± 4.71 | n.d. | n.d. |
| C18:1n‐9c | 17.14 ± 2.24 | 467.7 ± 61.0 | 44.0 ± 11.1 | 3,756 ± 943 | 41.42 ± 1.15 | 12,427 ± 345 |
| C18:1n‐7c | 3.86 ± 0.19 | 105.46 ± 5.12 | 3.00 ± 0.80 | 256.3 ± 68.6 | 2.96 ± 0.09 | 887.6 ± 26.8 |
| C18:1n‐5c | 0.22 ± 0.03 | 6.12 ± 0.75 | n.d. | n.d. | n.d. | n.d. |
| C20:1n‐11c | 0.79 ± 0.14 | 21.54 ± 3.89 | 0.14 ± 0.06 | 11.88 ± 4.81 | 0.13 ± 0.01 | 37.60 ± 2.67 |
| C20:1n‐9c | 8.05 ± 1.76 | 219 ± 48.1 | 3.43 ± 1.13 | 292.3 ± 93.6 | 1.95 ± 0.06 | 583.9 ± 17.3 |
| C20:1n‐7c b | 0.23 ± 0.09 | 6.31 ± 2.28 | 0.09 ± 0.02 | 7.47 ± 2.00 | 0.09 ± 0.01 | 26.48 ± 1.54 |
| C22:1n‐9c | 8.85 ± 2.24 | 241.5 ± 61.1 | 1.46 ± 0.73 | 124.8 ± 61.9 | 1.17 ± 0.05 | 352.5 ± 14.0 |
| C24:1n‐9c | 0.50 ± 0.04 | 13.50 ± 1.05 | 0.36 ± 0.13 | 30.3 ± 11.2 | 0.21 ± 0.01 | 61.57 ± 1.87 |
| ∑ MUFA | 47.40 ± 8.36 | 1,293 ± 228 | 55.4 ± 14.7 | 4,725 ± 1,254 | 51.22 ± 1.49 | 15,366 ± 446 |
| C16:2n‐4c | 0.24 ± 0.08 | 6.62 ± 2.17 | 0.14 ± 0.04 | 11.58 ± 3.06 | 0.28 ± 0.02 | 83.11 ± 5.77 |
| C18:2n‐6c (LA) | 0.84 ± 0.14 | 22.94 ± 3.90 | 13.83 ± 3.33 | 1179 ± 284 | 13.86 ± 0.39 | 4157 ± 117 |
| C18:3n‐6c | n.d. | n.d. | 0.06 ± 0.02 | 5.54 ± 1.99 | 0.053 ± 0.004 | 16.04 ± 1.32 |
| C18:3n‐3c (ALA) | 0.64 ± 0.09 | 17.51 ± 2.34 | 5.66 ± 1.10 | 482.9 ± 94.2 | 7.99 ± 0.23 | 2,396.5 ± 70.5 |
| C18:4n‐3c | 0.86 ± 0.03 | 23.58 ± 0.93 | 0.43 ± 0.10 | 36.29 ± 8.55 | 0.56 ± 0.04 | 167.5 ± 11.7 |
| C20:2n‐6c | 0.21 ± 0.06 | 5.71 ± 1.63 | 0.84 ± 0.22 | 71.5 ± 19.1 | 0.09 ± 0.01 | 26.17 ± 2.38 |
| C20:3n‐6c | 0.06 ± 0.02 | 1.54 ± 0.43 | 0.16 ± 0.04 | 14.00 ± 3.59 | 0.044 ± 0.004 | 62.00 ± 1.06 |
| C20:3n‐3c | 0.15 ± 0.04 | 3.98 ± 1.15 | 0.34 ± 0.07 | 29.27 ± 6.20 | 0.036 ± 0.001 | 10.67 ± 0.29 |
| C20:4n‐6c | 0.26 ± 0.05 | 7.17 ± 1.34 | 0.13 ± 0.03 | 10.75 ± 2.50 | 0.21 ± 0.02 | 10.01 ± 5.05 |
| C20:4n‐3c | 1.10 ± 0.17 | 29.93 ± 4.56 | 0.59 ± 0.18 | 50.7 ± 15.2 | 0.22 ± 0.01 | 66.29 ± 3.92 |
| C20:5n‐3c (EPA) | 6.11 ± 1.13 | 166.8 ± 30.8 | 2.19 ± 0.43 | 186.7 ± 36.3 | 3.01 ± 0.10 | 903.8 ± 30.2 |
| C21:5n‐3c | 0.30 ± 0.08 | 8.24 ± 2.25 | 0.22 ± 0.05 | 18.68 ± 4.29 | 0.18 ± 0.02 | 55.20 ± 4.85 |
| C22:5n‐3c | 2.57 ± 0.15 | 70.18 ± 4.08 | 1.11 ± 0.24 | 94.7 ± 20.3 | 0.54 ± 0.02 | 160 ± 6.71 |
| C22:6n‐3c (DHA) | 12.94 ± 3.26 | 353.2 ± 88.9 | 3.94 ± 0.81 | 335.8 ± 68.7 | 3.39 ± 0.10 | 1,016.1 ± 30.5 |
| ∑ PUFA | 26.29 ± 5.30 | 717 ± 145 | 29.63 ± 6.66 | 2,524 ± 568 | 30.45 ± 0.97 | 9,134 ± 292 |
| Total | 2,729 ± 465 | 8,531 ± 2125 | 30,000 ± 922 | |||
| ∑ n‐6 | 1.37 ± 0.27 | 37.36 ± 7.30 | 15.02 ± 3.65 | 1,281 ± 311 | 14.25 ± 0.42 | 4,275 ± 127 |
| ∑ n‐3 | 24.68 ± 4.95 | 673 ± 135 | 14.48 ± 2.98 | 1,234 ± 254 | 15.92 ± 0.53 | 4,777 ± 159 |
| n‐6/n‐3 | 0.06 | 1.04 | 0.89 | |||
| AI | 0.43 | 0.19 | 0.23 | |||
| TI | 0.22 | 0.18 | 0.21 | |||
Abbreviation: n.d., not detected.
a
Values are expressed as mean ± standard deviation.
b
The FA is not confirmed by a standard, only by NIST library search.