Table 3.
Comparison of the predicted and experimental values for the optimized solvents.
| Solvent | Response | Optimization Goal | X1 (%, w/w) | X2 (%, w/w) | X3 (%, w/w) | Rsppred | Rspobs | RD (%) |
|---|---|---|---|---|---|---|---|---|
| A | TP (mg/mL) | Maximize | 10.0 | 89.0 | 1.0 | 5.678 | 5.600 | −1.4 |
| B | Oleuropein (mg/mL) | Maximize | 28.6 | 63.6 | 7.8 | 1.631 | 1.615 | −1.0 |
X1 = polypropylene glycol, X2 = water, X3 = lactic acid, Rsppred = predicted value, Rspobs = observed value, RD = response deviation calculated as (Rspobs − Rsppred) / Rsppred × 100, TP = total phenolic content.