Table 1 Dietary fatty acid composition and isotopic signatures
Fatty Acid | ALA | DHA + ALA |
|---|---|---|
weight % in total FAs | ||
C 10:0 | 4.68 ± 0.01 | 4.26 ± 0.03 |
C 12:0 | 30.8 ± 0.2 | 28.0 ± 0.2 |
C 14:0 | 12.0 ± 0.1 | 10.8 ± 0.1 |
C 16:0 | 8.54 ± 0.02 | 8.31 ± 0.03 |
C 18:0 | 8.05 ± 0.05 | 7.42 ± 0.03 |
SFAs | 64.3 ± 0.2 | 59.2 ± 0.2 |
C 18:1n-7 | 0.26 ± 0.01 | 0.30 ± 0.01 |
C 18:1n-9 | 7.74 ± 0.04 | 6.66 ± 0.04 |
MUFAs | 8.18 ± 0.05 | 7.15 ± 0.05 |
C 18:2n-6 | 24.7 ± 0.1 | 29.4 ± 0.1 |
δ 13 C 18:2n-6 | −30.44 ± 0.09 ‰ | −30.77 ± 0.08 ‰ |
C 20:4n-6 | n.d. | 0.07 ± 0.0003 |
N-6 | 24.7 ± 0.1 | 29.5 ± 0.1 |
C 18:3n-3 | 2.07 ± 0.01 | 1.91 ± 0.01 |
δ 13 C 18:3n-3 | −28.22 ± 0.17 ‰ | −28.54 ± 0.22 ‰ |
C 20:5n-3 | 0.01 ± 0.001 | 0.01 ± 0.0003 |
C 22:6n-3 | 0.01 ± 0.001 | 1.72 ± 0.01 |
δ 13 C 22:6n-3 | – | −22.30 ± 0.27 ‰ |
N-3 | 2.1 ± 0.01 | 3.64 ± 0.02 |