Table 1.
Characterization and quality parameters of the oils.
| HLSO | HOSO | |
|---|---|---|
| Fatty acids (wt %) | ||
| C14:0 | 0.08 ± 0.00 | 0.05 ± 0.00 |
| C16:0 | 6.02 ± 0.00 | 3.73 ± 0.01 |
| C16:1 | 0.09 ± 0.00 | 0.10 ± 0.00 |
| C17:0 | 0.03 ± 0.00 | 0.01 ± 0.00 |
| C17:1 | nd | 0.02 ± 0.00 |
| C18:0 | 3.73 ± 0.01 | 3.09 ± 0.01 |
| C18:1 | 29.31 ± 0.01 | 83.55 ± 0.02 |
| C18:2 | 58.83 ± 0.01 | 7.58 ± 0.01 |
| Trans C18:2 | 0.10 ± 0.00 | 0.02 ± 0.00 |
| C18:3 | 0.06 ± 0.00 | 0.05 ± 0.00 |
| C20:0 | 0.22 ± 0.01 | 0.24 ± 0.00 |
| C20:1 | 0.14 ± 0.01 | 0.23 ± 0.01 |
| C20:4 | 0.01 ± 0.00 | 0.01 ± 0.00 |
| C22:0 | 0.57 ± 0.01 | 0.77 ± 0.01 |
| C24:0 | 0.11 ± 0.01 | 0.25 ± 0.00 |
| Others | 0.70 ± 0.01 | 0.34 ± 0.01 |
| Acidity (% oleic acid) | 0.04 ± 0.01 | 0.07 ± 0.01 |
| Peroxide value (meq O2/kg oil) | 5.7 ± 1.0 | 3.2 ± 0.7 |
| Oxidative stability index (h) | 5.3 ± 0.3 | 22.1 ± 1.1 |
| Smoke point (°C) | 230 ± 2 | 234 ± 3 |
| Polar compounds (wt %) | ||
| Total | 2.6 ± 0.1 | 2.3 ± 0.1 |
| Triacylglycerol dimers | 0.4 ± 0.0 | 0.1 ± 0.0 |
| Oxidized triacylglycerols | 1.1 ± 0.1 | 0.6 ± 0.1 |
| Diacylglycerols | 0.8 ± 0.1 | 1.3 ± 0.1 |
| Monoacylglycerols | nd | nd |
| Free fatty acids * | 0.3 ± 0.0 | 0.4 ± 0.1 |
| Bioactive compounds (mg/kg) |
||
| Tocopherols | 627 ± 14 | 557 ± 8 |
| Squalene | 181 ± 8 | 120 ± 9 |
| Sterols | 3219 ± 25 | 3198 ± 18 |
Abbreviations: HLSO, high-linoleic sunflower oil; HOSO, high-oleic sunflower oil. Means ± SD (n = 3). * It also includes other polar minor oil components, nd: not detected.