Table 1.
Saturation solubility (mg/mL) of oleanolic acid in different oils and surfactants.
| Solvent | Solubility | Solvent | Solubility |
|---|---|---|---|
| Capmul PG-8/NF | 19.72 ± 0.13 | Isopropil myristate | 9.44 ± 1.05 |
| Capmul PG-12/NF | 16.42 ± 1.04 | Lauroglycole 90 | 10.75 ± 0.56 |
| Captex 300 | 3.74 ± 0.10 | Nigella oil | 35.40 ± 1.41 |
| Captex 355 | 3.19 ± 0.24 | Sunflower oil | 11.75 ± 0.46 |
| Capryol 90 | 24.95 ± 0.90 | Soybean oil | 1.06 ± 0.17 |
| Cremophor EL | 28.32 ± 0.93 | PEG 400 | 8.49 ± 0.58 |
| Labrafac Lipophile | 13.29 ± 0.87 | Transcutol HP | 41.02 ± 2.41 |
| Labrasol | 13.27 ± 0.21 | Triacetine | 3.09 ± 0.17 |
| Labrasol ALF | 11.98 ± 0.84 | Tween 20 | 6.19 ± 0.58 |
| Etyloleate | 2.13 ± 0.21 | Tween 80 | 4.56 ± 0.36 |