Table 8.
Overview of the extraction experiments by Bicchi et al. to optimize the SFE extraction method for Senecio. The results correspond to the sum of senecionine and seneciphylline [78]. Missing information is characterized by “--”.
| Technique | Sample (g) |
Volume (mL) |
Time (h) | Temperature (°C) |
Solvent/ Pressure |
Result (ppm) | |
|---|---|---|---|---|---|---|---|
| 1 | Soxhlet | 10 | -- | 4 | Boiling Point | Methanol ambient |
0.74 */2.39 ** |
| 2 | SFE | 0.5 | 80 | 4 | 50 | Methanol/ CO2 15MPa |
0.68 */2.92 ** |
| 3 | SFE | 0.5 | 80 | 4 | 55 | Methanol/ CO2 10MPa |
0.65 */2.74 ** |
| 4 | SFE | 0.5 | 80 | 4 | 55 | Methanol/CO2 15MPa | 0.84 */3.24 ** |
| 5 | SFE | 0.5 | 80 | 4 | 60 | Methanol/CO2 15MPa | 0.81 */3.16 ** |
* Senecio inaequidens L.; ** Senecio cordatus L.