Table 5.
Microemulsion area percentage related to pseudo-ternary phase diagrams composed of three different co-surfactants (PEG 400, g/lycerol, and PG) with oleic acid (oil) and Cremophor EL (surfactant), maximum solubilized oil and phase transition.
| Co-Surfactant | S:C Ratio |
% Microemulsion Area | Maximum Solubilized Oil (%w/w) | % Afluid | % Abi |
|---|---|---|---|---|---|
| PEG 400 | 1:1 | 15 | 8 | 13 | 2 |
| 1:2 | 11 | 5 | 8.5 | 2.5 | |
| 2:1 | 29 | 15 | 14 | 15 | |
| Glycerol | 1:1 | 12.5 | 23 | 9 | 3.5 |
| 1:2 | 9 | 18 | 7 | 2 | |
| 2:1 | 18 | 33 | 3 | 15 | |
| PG | 1:1 | 24.6 | 33 | 19.7 | 4.9 |
| 1:2 | 12 | 16 | 12 | - | |
| 2:1 | 32.4 | 33 | 16.8 | 15.6 |
Afluid: area of fluid (O/W) and (W/O), Abi: area of bicontinuous.