Table 1.
Fatty acid content in the lipid fractions (mean ± SD, µg/g DW) of stipe and blade from L. hyperborea (n = 4, two injection parallels for each of these four sampling events).
| Fatty acid | Stipe | Blade | |||||
|---|---|---|---|---|---|---|---|
| NL | FFA | PL | NL | FFA | PL | ||
| C7:0 5 methyla | 1.32 ± 0.09 | n.d. | n.d. | 0.49 ± 0.03 | n.d. | n.d. | |
| C8:0 | 1.47 ± 0.11 | 0.70 ± 0.04 | n.d. | 5.36 ± 0.63 | 0.65 ± 0.03 | n.d. | |
| C9:0 | n.d. | 0.41 ± 0.06 | n.d. | n.d. | 0.64 ± 0.03 | n.d. | |
| C10:0 | 0.76 ± 0.05 | n.d. | n.d. | 4.98 ± 0.63 | 0.39 ± 0.06 | n.d. | |
| C12:0 | 0.53 ± 0.09 | 1.66 ± 0.22 | 0.13 ± 0.01 | 0.73 ± 0.03 | 2.87 ± 0.12 | 0.09 ± 0.01 | |
| C13:0 | n.d. | 0.19 ± 0.01 | n.d. | 0.17 ± 0.01 | 0.96 ± 0.03 | 0.07 ± 0.01 | |
| C14:0 | 101.28 ± 1.80 | 21.94 ± 0.78 | 272.39 ± 9.92 | 223.80 ± 4.65 | 94.20 ± 4.02 | 312.39 ± 5.60 | |
| C14:0 13 methyl | n.d. | 0.33 ± 0.05 | n.d. | n.d. | 0.39 ± 0.02 | n.d. | |
| C14:1 trans-9 | n.d. | 0.20 ± 0.02 | n.d. | n.d. | 1.86 ± 0.12 | n.d. | |
| C14:1 cis-9 | 0.89 ± 0.04 | 0.13 ± 0.02 | 0.27 ± 0.03 | 2.45 ± 0.03 | 0.46 ± 0.02 | 0.38 ± 0.01 | |
| C15:0 | 0.95 ± 0.05 | 1.00 ± 0.05 | 2.52 ± 0.03 | 8.73 ± 0.18 | 6.40 ± 0.18 | 10.43 ± 0.14 | |
| C16:0 | 163.36 ± 5.08 | 82.19 ± 3.08 | 276.64 ± 6.91 | 900.21 ± 17.85 | 298.88 ± 12.12 | 417.29 ± 5.39 | |
| C16:1b | n.d. | n.d. | n.d. | 0.77 ± 0.10 | 1.31 ± 0.03 | 0.65 ± 0.02 | |
| C16:1b | n.d. | 0.53 ± 0.04 | 0.37 ± 0.05 | 2.24 ± 0.09 | 2.75 ± 0.09 | 1.05 ± 0.02 | |
| C16:1 cis-9 | 74.99 ± 2.56 | 14.38 ± 0.21 | 54.60 ± 1.02 | 179.65 ± 1.94 | 74.12 ± 2.11 | 104.78 ± 1.14 | |
| C17:0 | 0.32 ± 0.02 | 0.52 ± 0.06 | 0.57 ± 0.04 | 6.62 ± 0.24 | 1.73 ± 0.07 | 1.83 ± 0.05 | |
| C16:2 cis or trans-7,10 | (n-6) | 0.62 ± 0.04 | 0.13 ± 0.02 | 0.49 ± 0.07 | 2.00 ± 0.07 | 1.72 ± 0.05 | 2.53 ± 0.05 |
| C17:1 cis-9 | 0.33 ± 0.03 | 0.10 ± 0.04 | 0.35 ± 0.3 | 4.14 ± 0.24 | 2.02 ± 0.05 | 1.96 ± 0.06 | |
| C18:0 | 5.95 ± 0.28 | 17.35 ± 0.71 | 2.54 ± 0.09 | 84.00 ± 2.01 | 21.04 ± 0.70 | 4.42 ± 0.06 | |
| C18:1 cis-9 | 234.12 ± 5.87 | 47.46 ± 0.43 | 418.07 ± 10.33 | 1200.51 ± 29.95 | 219.90 ± 5.17 | 546.84 ± 11.59 | |
| C18:1 cis-11 | 3.37 ± 0.31 | 2.27 ± 0.04 | 4.85 ± 0.22 | 11.39 ± 0.21 | 6.64 ± 0.14 | 7.68 ± 0.14 | |
| C18:2 all-cis-9,12 (LA)c | (n-6) | 44.67 ± 1.76 | 2.70 ± 0.09 | 48.39 ± 101 | 183.66 ± 4.19 | 27.79 ± 0.67 | 88.57 ± 1.19 |
| C18:3 all-cis-6,9,12 | (n-6) | 3.23 ± 0.22 | n.d. | 3.59 ± 0.13 | 14.02 ± 0.18 | 3.02 ± 0.06 | 12.29 ± 0.19 |
| C20:0 | 6.67 ± 0.54 | 1.35 ± 0.07 | 1.52 ± 0.10 | 49.59 ± 1.19 | 9.80 ± 0.25 | 4.79 ± 0.09 | |
| C18:3 all-cis-9,12,15 (ALA)d | (n-3) | 7.31 ± 0.31 | 0.65 ± 0.03 | 2.37 ± 0.15 | 83.56 ± 1.38 | 21.99 ± 0.53 | 25.22 ± 0.68 |
| C20:1 cis-9 | n.d. | 0.39 ± 0.08 | 3.34 ± 0.18 | 7.87 ± 0.40 | 4.17 ± 0.05 | 9.75 ± 0.19 | |
| C20:1 cis-11 | n.d. | 0.16 ± 0.04 | 0.39 ± 0.05 | 0.89 ± 0.05 | 0.39 ± 0.02 | 0.95 ± 0.03 | |
| C18:4 all-cis-6,9,12,15 (SDA)e | (n-3) | 5.6 ± 0.3 | 0.93 ± 0.03 | 10.74 ± 0.24 | 68.90 ± 1.29 | 64.62 ± 1.33 | 259.58 ± 2.77 |
| C20:2 all-cis-11,14 | (n-6) | 3.73 ± 0.35 | 0.27 ± 0.05 | 4.88 ± 0.18 | 10.35 ± 0.33 | 2.87 ± 0.12 | 8.57 ± 0.17 |
| C20:3b | 1.93 ± 0.16 | 0.12 ± 0.02 | 0.90 ± 0.07 | 1.91 ± 0.05 | 0.50 ± 0.03 | 1.08 ± 0.03 | |
| C20:3b | 1.49 ± 0.14 | 0.07 ± 0.01 | 1.04 ± 0.06 | 4.50 ± 0.59 | 0.72 ± 0.04 | 2.71 ± 0.05 | |
| C20:3b | n.d. | 0.04 ± 0.01 | 0.43 ± 0.03 | 1.20 ± 0.63 | 0.28 ± 0.02 | 0.79 ± 0.03 | |
| C20:3 all-cis-8,11,14 | (n-6) | 3.63 ± 0.35 | 0.16 ± 0.02 | 5.19 ± 0.20 | 18.23 ± 1.29 | 0.80 ± 0.02 | 4.46 ± 0.08 |
| C22:0 | n.d. | 0.06 ± 0.01 | n.d. | 0.93 ± 0.13 | 0.41 ± 0.02 | n.d. | |
| C20:4 all-cis-5,8,11,14 (AA)f | (n-6) | 344.56 ± 11.46 | 17.39 ± 0.39 | 82.89 ± 1.49 | 516.97 ± 11.52 | 66.32 ± 2.11 | 139.90 ± 1.25 |
| C20:4b | n.d. | n.d. | 0.44 ± 0.04 | 2.80 ± 0.14 | 0.92 ± 0.04 | 3.21 ± 0.07 | |
| C20:4 all-cis-8,11,14,17 | (n-3) | 3.29 ± 0.26 | n.d. | 2.39 ± 0.13 | 13.52 ± 0.33 | 3.76 ± 0.17 | 10.12 ± 0.17 |
| C20:5 all-cis-5,8,11,14,17 (EPA)g | (n-3) | 81.72 ± 3.28 | 2.91 ± 0.07 | 40.62 ± 0.87 | 409.27 ± 9.51 | 81.58 ± 1.90 | 339.09 ± 3.60 |
| C24:0 | n.d. | 0.29 ± 0.02 | n.d. | 0.64 ± 0.08 | 1.45 ± 0.06 | n.d. | |
| C22:5 all-cis-7,10,13,16,19 | (n-3) | 3.01 ± 0.28 | 0.18 ± 0.01 | 1.56 ± 0.09 | 15.37 ± 0.50 | 4.97 ± 0.12 | 11.29 ± 0.26 |
| C22:6 all-cis-4,7,10,13,16,19 (DHA)h | (n-3) | n.d. | 0.08 ± 0.01 | 0.33 ± 0.06 | n.d. | 1.67 ± 0.06 | 0.22 ± 0.02 |
| C26:0 | n.d. | 0.27 ± 0.02 | n.d. | n.d. | 1.08 ± 0.07 | n.d. | |
|
| |||||||
| Total | 1101.14 | 219.51 | 1244.77 | 4042.45 | 1033.02 | 2334.99 | |
aFatty acids are identified by NIST library search only; bunknown isomer of fatty acid, identified by NIST library search only; cLA: linoleic acid; dALA: alpha linolenic acid; eSDA: stearidonic acid; fAA: arachidonic acid; gEPA: eicosapentaenoic acid; hDHA: docosahexaenoic acid; n.d. = not detected. NL, neutral lipid; FFA, free fatty acid; PL, polar lipid.