TABLE 1.
Lipid classes identified in trimethylsilylated SSL samples analyzed by HTGC-MS
| Free Fatty Acids | Free Fatty Acids (continued) | RT | Hydrocarbons | Monoglycerides | ||||
|---|---|---|---|---|---|---|---|---|
| RT | RCO | RT | RCO | 29.29 | Squalene | RT | RCO | |
| 8.05 | C10:0 | 18.89 | C16:0 | 31.62 | Squalene | 25.81 | C14:0 | |
| 11.32 | C12:0 | 19 | C16:0 | 33.14 | Epoxysqualene | 28.26 | C16:0 | |
| 12.06 | C12:0 | 19.13 | C16:1 | 28.71 | C16:0 | |||
| 12.14 | C13:0 | 19.28 | C16:1 | RT |
Free sterols |
31 | C18:1 | |
| 12.9 | C13:0 | 19.4 | C16:0 | 35.91 | Cholesterol | 31.45 | C18:0 | |
| 13.09 | C13:0 | 19.53 | C16:0 | 38.22 | Lanosterol | |||
| 13.32 | C13:0 | 19.67 | C16:0 | 38.94 | 3 hydroxy lanosta-8,24-diene | Diglycerides |
||
| 13.46 | C13:0 | 19.57 | C16:0 | RT | R'CO | R’’CO | ||
| 14.05 | C13:0 | 19.85 | C16:0 | 46.83 | C15:0 | C16:0 | ||
| 14.34 | C13:0 | 20.21 | C17:1 | Cholesteryl esters |
47.67 | C14:0 | C18:0 | |
| 14.84 | C14:0 | 20.34 | C17:0 | RT | R1CO | 48.17 | C15:0 | C16:1 |
| 15.27 | C14:0 | 20.53 | C17:0 | 61.48 | C14:1 | 48.69 | C15:0 | C16:1 |
| 15.49 | C14:1 | 20.87 | C17:1 | 61.72 | C14:1 | 49.20 | C15:0 | C16:0 |
| 15.99 | C14:0 | 21.17 | C18:1 | 62.01 | C14:0 | 49.92 | C16:0 | C16:1 |
| 16.65 | C15:1 | 21.39 | C17:0 | 63.17 | C15:1 | 49.92 | C16:0 | C16:0 |
| 16.74 | C15:0 | 21.91 | C18:1 | 63.48 | C15:1 | 50.05 | C16:0 | C16:1 |
| 16.93 | C15:0 | 22.14 | C18:2 | 63.82 | C15:0 | 50.37 | C16:0 | C16:0 |
| 17.17 | C15:0 | 22.43 | C18:2 | 64.57 | C16:1 | 50.61 | C16:0 | C16:1 |
| 17.32 | C15:0 | 22.53 | C18:1 | 64.99 | C16:0 | 51.05 | C16:0 | C16:0 |
| 17.17 | C15:0 | 22.8 | C18:0 | 65.31 | C16:1 | 53.51 | C18:1 | C16:0 |
| 17.32 | C15:0 | 23.06 | C18:0 | 65.71 | C16:0 | 54.61 | C18:0 | C16:0 |
| 17.86 | C15:0 | 29.05 | C20:1 | 66.46 | C17:1 | 57.45 | C18:0 | C18:0 |
| 18.11 | C15:0 | 30.45 | C21:1 | 66.81 | C17:1 | 58.10 | C18:0 | C18:0 |
| 18.46 | C16:1 | 31.8 | C22:1 | 66.84 | C17:0 | |||
| 18.58 | C16:0 | 32.85 | C23:1 | 67.20 | C17:0 | |||
| 18.69 | C16:0 | 34.79 | C24:1 | 68.59 | C18:1 | |||
Several trimethylsilylated FFA with the same total carbon number were eluted at different retention times (RT, min); this could due to the branching of chains or unsaturation positions. RCO, R1CO, R′CO and R″CO, acid moieties.