Table 1.
Extraction conditions, dielectric constant and extraction yield obtained from the pressurized liquid extraction (PLE) extraction of filter cake (to carry out the PLE, 8 g of filter cake were loaded in the extraction cell).
| T (°C) | Ethanol in the Mixture Ethanol:Water (%) | Dielectric Constant in the Mixture Ethanol:Water | Amount of Lipophilic Fraction Eliminated in the Clean-Up Step (g) | Amount of Sample in the Cell after Clean-Step (g) | Extraction Yield (%) |
|---|---|---|---|---|---|
| 40 | 50 | 48.0 | 4.789 | 3.237 | 3.0 |
| 175 | 85 | 21.6 | 4.823 | 3.192 | 4.3 |
| 60 | 15 | 59.1 | 4.850 | 3.159 | 5.6 |
| 120 | 0 | 50.4 | 4.129 | 3.887 | 3.5 |
| 120 | 50 | 34.7 | 4.936 | 3.080 | 5.8 |