Table 1.
Molecular species composition of shark liver PC by LC/ESI-MS
| [M+H]+ | Total Carbons: Total Double Bonds | Mol. Species* | Percentage (%)** | |
|---|---|---|---|---|
| 718 | 32 | 1 | a14:0/18:1*** | 2.5 ± 0.5 |
| 732 | 32 | 1 | 14:0/18:1 | 2.2 ± 0.3 |
| 734 | 32 | 0 | 14:0/18:0 | 2.4 ± 0.2 |
| 16:0-16:0 | ||||
| 746 | 34 | 1 | a16:0/18:1 | 8.1 ± 1.2 |
| 760 | 34 | 1 | 16:0/18:1 | 6.6 ± 0.7 |
| 764 | 36 | 6 | a14:0/22:6 | 1.8 ± 0.4 |
| 766 | 36 | 5 | a14:0/22:5 | 1.5 ± 0.5 |
| 780 | 36 | 5 | 16:0/20:5 | 6.2 ± 0.7 |
| 782 | 36 | 4 | 16:0/20:4 | 8.2 ± 0.4 |
| 790 | 38 | 7 | p16:0/22:6*** | 3.6 ± 0.7 |
| 792 | 38 | 6 | a16:0/22:6 | 5.9 ± 0.5 |
| 794 | 38 | 5 | a18:1/20:4 | 2.1 ± 0.4 |
| a18:0/20:5 | ||||
| 806 | 38 | 6 | 16:0/22:6 | 21 ± 1.4 |
| 808 | 38 | 5 | 16:0/22:5 | 7.8 ± 0.8 |
| 18:0/20:5 | ||||
| 810 | 38 | 4 | 18:0/20:4 | 2.7 ± 0.4 |
| 818 | 40 | 7 | a18:1/22:6 | 2.3 ± 0.4 |
| 820 | 40 | 6 | a18:0/22:6 | 2.3 ± 0.3 |
| 822 | 40 | 5 | a18:0/22:5 | 2.5 ± 0.3 |
| 832 | 40 | 7 | 18:1/22:6 | 1.3 ± 0.2 |
| 834 | 40 | 6 | 18:0/22:6 | 7.5 ± 0.5 |
| 836 | 40 | 5 | 18:0/22:5 | 1.5 ± 0.4 |
*
sn-1 acyl (or alkenyl or alkyl) group/sn-2 acyl group
**
Semiquantitative results were generated from the average intensity of [M + H]+ ions of the molecular species of shark liver PC, based on three replicate analyses by LC/ESI/MS.
***
an ‘a’ preceding the name of the species indicates 1-alkyl-2acyl species, while a ‘p’ preceding the name indicates 1-alkenyl-2acyl species.