Table 2.
The profiles of carotenoid compounds of extracts was obtained by two different methods
| Rt (min) | SWE | SFE | Compound (%) |
|---|---|---|---|
| 11.5 | 4.77 | 0.22 | Neoxanthin |
| 12.0 | 4.67 | 0.27 | Violaxanthin |
| 15.2 | 8.78 | 2.49 | Lutheoxanthin |
| 15.4 | 10.79 | 3.97 | Lutein |
| 17.3 | 2.25 | 0.09 | Unknown |
| 17.8 | 3.06 | 0.06 | Zeaxanthin |
| 32.3 | 1.22 | 0.14 | 13-cis-β-carotene |
| 34.8 | 0.17 | 0.05 | α-Carotene |
| 35.2 | 0.14 | 0.09 | Unknown |
| 38.7 | 23.13 | 25.15 | α-Crypthoxanthin |
| 39.6 | 1.62 | 1.36 | β-Carotene |
| 40.1 | 2.41 | 0.05 | 9-cis-β-carotene |
| 44.2 | 12.76 | 24.01 | β-Crypthoxanthin |
| 46.0 | 1.51 | 0.05 | Lycopene |
| – | 77.28 | 57.99 | Total carotenoid |
Note Pumpkin peel extract obtained by supercritical fluid extraction (SFE) and subcritical water extraction (SWE)