Table 1.
List of the most abundant PL and GL species identified in the edible alga wakame a.
| # | Accurate m/z |
Mass Error (ppm.) | SQDG (sn-1/sn-2) | Adduct | Molecular Formula | Relative Abundance (%) |
|---|---|---|---|---|---|---|
| 1 | 815.4978 | −0.9 | 18:3/16:0 | [M-H]− | [C43H75O12S]− | 22.4 |
| 2 | 817.5143 | 0.2 | 18:2/16:0 | [C43H77O12S]− | 16.2 | |
| 3 | 819.5322 | 2.9 | 18:1/16:0 | [C43H79O12S]− | 48.2 | |
| SQMG (sn-1/sn-2) | ||||||
| 4 | 555.2820 | −4.5 | 16:0/0:0 | [M-H]− | [C25H47O11S]− | 65.0 |
| 5 | 0:0/16:0 | 12.0 | ||||
| DGDG (sn-1/sn-2) | ||||||
| 6 | 967.6330 | 0.2 | 18:1/18:1; 16:0/20:2 | [M+Na]+ | [C51H92O15Na]+ | 70 |
| 7 | 969.6483 | −0.2 | 18:0/18:1 | [C51H94O15Na]+ | 15 | |
| DGMG b | ||||||
| 8 | 673.3455 | 2.1 | 18:4 | [M-H]− | [C33H53O14]− | 93 |
| 709.3223 | 2.1 | [M+35Cl]− | [C33H54O14Cl]− | |||
| 711.3170 | −1.1 | [M+37Cl]− | [C33H54O14Cl]− | |||
| 9 | 685.3219 | 1.6 | 16:2 | [M+35Cl]− | [C31H54O14Cl]− | 1.2 |
| PG (sn-1/sn-2) | ||||||
| 10 | 719.4895 | 3.6 | 16:0/16:1; 18:1_14:0 | [M-H]− | [C38H72O10P]− | 13.67 |
| 11 | 745.5030 | 0.7 | 16:0/18:2; 18:1/16:1 | [C40H74O10P]− | 20.47 | |
| 12 | 747.5177 | −0.7 | 16:0/18:1 | [C40H76O10P]− | 38.09 | |
| LPG b | ||||||
| 13 | 481.2571 | −0.2 | 16:1 | [M-H]− | [C22H42O9P]− | 28.89 |
| 14 | 483.2730 | 0.4 | 16:0 | [C22H44O9P]− | 20.80 | |
| 15 | 507.2729 | 0.2 | 18:2 | [C24H44O9P]− | 16.87 | |
| 16 | 509.2883 | −0.4 | 18:1 | [C24H46O9P]− | 24.34 | |
| PI (sn-1/sn-2) | ||||||
| 17 | 833.5197 | 1.3 | 16:0/18:2 | [M-H]− | [C43H78O13P]− | 18.78 |
| 18 | 835.5349 | 0.8 | 16:0/18:1 | [C43H80O13P]− | 69.69 | |
| PA (sn-1/sn-2) | ||||||
| 19 | 645.4516 | 2.3 | 16:0/16:1; 14:0/18:1 | [M-H]− | [C35H66O8P]− | 12.80 |
| 20 | 695.4668 | 1.6 | 16:0/20:4; 18:2/18:2 | [C39H68O8P]− | 12.88 | |
| 21 | 743.4671 | 1.9 | 20:4/20:4 | [C43H68O8P]− | 47.85 | |
| PE (sn-1/sn-2) | ||||||
| 22 | 686.4792 | 3.8 | 16:1/16:1 | [M-H]− | [C37H69NO8P]− | 7.11 |
| 23 | 688.4929 | 0.9 | 16:0/16:1; 18:1/14:0 | [C37H71NO8P]− | 63.02 | |
| 24 | 714.5069 | −1.4 | 18:1/16:1 | [C39H73NO8P]− | 9.68 | |
| 25 | 738.5092 | 1.8 | 16:0/20:4 | [C41H73NO8P]− | 6.06 | |
| 26 | 786.5100 | 2.7 | 20:4/20:4 | [C45H73NO8P]− | 5.52 | |
| LPE (sn-1/sn-2) | ||||||
| 27 | 500.2797 | 2.8 | 20:4/0:0 | [M-H]− | [C25H43NO7P]− | 65.07 |
| PC (sn-1/sn-2) | ||||||
| 28 | 774.5302 | 1.4 | 14:0/18:2; 16:0/16:2; | [M+HCOO]− | [C41H77NO10P]− | 9.45 |
| 16:1/16:1; 19:2_13:0 | ||||||
| 29 | 802.5614 | 1.2 | 16:0/18:2 | [C43H81NO10P]− | 34.05 | |
| 30 | 826.5598 | −0.7 | 16:0/20:4; 18:2/18:2 | [C45H81NO10P]− | 17.73 | |
| 31 | 850.5580 | −2.8 | 20:4/18:2 | [C47H81NO10P]− | 12.05 | |
| LPC (sn-1/sn-2) | ||||||
| 32 | 504.3113 | 3.4 | 18:2/0:0 | [M-CH3]− | [C25H47NO7P]− | 11.17 |
| 33 | 564.3323 | 2.8 | 18:2/0:0 | [M+HCOO]− | [C27H51NO9P]− | 23.71 |
| 34 | 588.3323 | 2.7 | 20:4/0:0 | [C29H51NO9P]− | 22.32 | |
a A more extended list of PL and GL species is provided in the Supplementary Information. b No regiochemical assignment is reported.