Table 2.
Total and intrapositional % fatty acid composition (% mol, mean value ± SD, n = 3) of oil and triacylglycerol (TAG) fraction of pumpkin (C. maxima, var. Berrettina) seed oil.
| Total Lipids | TAG | sn-1- | sn-2- | sn-3- | ||
|---|---|---|---|---|---|---|
| Yield (%) | 29.0 ± 0.9 | |||||
| Saturated fatty acids (SFA) | ||||||
| Mystiric acid | C14:0 | 0.2 ± 0.0 | 0.1 ± 0.0 | 0.5 ± 0.0 | – | – |
| Palmitic acid | C16:0 | 14.2 ± 0.4 | 12.2 ± 0.4 | 28.5 ± 0.0 | 1.0 ± 0.0 | 7.1 ± 0.0 |
| Margaric acid | C17:0 | 0.2 ± 0.0 | 0.1 ± 0.0 | 0.5 ± 0.0 | – | – |
| Stearic acid | C18:0 | 5.8 ± 0.2 | 6.2 ± 0.2 | 13.7 ± 0.0 | 0.4 ± 0.0 | 4.4 ± 0.0 |
| Arachidic acid | C20:0 | 0.5 ± 0.0 | 0.4 ± 0.0 | – | – | 1.1 ± 0.0 |
| Behenic acid | C22:0 | 0.1 ± 0.0 | 0.2 ± 0.0 | 1.5 ± 0.0 | – | – |
| Lignoceric acid | C24:0 | 0.1± 0.0 | – | – | – | – |
| Total SFA | 21.1 | 19.2 | 44.7 | 1.5 | 11.6 | |
| Monounsaturated fatty acids (MUFA) | ||||||
| Palmitoleic acid | C16:1n-7 | 0.2 ± 0.0 | 0.2 ± 0.0 | – | 0.1 ± 0.0 | 0.4 ± 0.0 |
| Heptadecenoic acid | C17:1n-7 | 0.1 ± 0.0 | 0.1 ± 0.0 | – | 0.1 ± 0.0 | 0.3 ± 0.0 |
| Oleic acid | C18:1n-9 | 41.4 ± 0.7 | 42.7 ± 0.7 | 46.5 ± 0.0 | 36.0 ± 0.0 | 44.6 ± 0.0 |
| Eicosenoic acid | C20:1n-9 | 0.1 ± 0.0 | – | – | – | – |
| Total MUFA | 41.7 | 43.0 | 46.4 | 36.2 | 46.3 | |
| Polyunsaturated fatty acids (PUFA) | ||||||
| Linoleic acid | C18:2n-6 | 37.0 ± 0.5 | 37.4 ± 0.5 | 7.7 ± 0.0 | 62.1 ± 0.0 | 42.0 ± 0.0 |
| Linolenic acid | C18:3n-3 | 0.2 ± 0.0 | 0.4 ± 0.0 | 1.1 ± 0.0 | 0.3± 0.0 | 0.1 ± 0.0 |
| Total PUFA | 37.2 | 37.8 | 8.8 | 62.4 | 24.1 | |
| Index | ||||||
| UFA/SFA | 3.7 | 4.2 | 1.2 | 65.7 | 6.1 | |
| MUFA/SFA | 2.0 | 2.2 | 1.0 | 24.1 | 4.0 | |
| PUFA/SFA | 1.8 | 2.0 | 0.2 | 41.6 | 2.1 | |
| PUFAn-6/PUFAn-3 | 185 | 93.5 | 7.0 | 207 | 420 | |
| UI | 116.3 | 118.9 | 65.2 | 161.3 | 129.6 | |
| AI | 0.19 | 0.16 | 0.55 | 0.01 | 0.10 | |
| TI | 0.50 | 0.44 | 1.38 | 0.03 | 0.32 |
–: <0.1%; UI: unsaturation index: Σ(mol % of each FA) × (number of double bonds of each FA); AI: atherogenic index (C12:0 + 4 × C14:0 + C16:0)/(MUFA + PUFAn-6 + PUFAn-3); TI: thrombogenic index (C14:0 + C16:0 + C18:0)/(0.5 × MUFA + 0.5 × PUFAn-6 + 3 × PUFAn-3 + (PUFA n-3/PUFAn-6)).