Table 1.
Box-Behnken design and experimental results of response surface methodology.
| Run | Independent Variables | Dependent Variables | ||
|---|---|---|---|---|
| X1 (Hydrolysis Time/h) | X2 (Material/Liquid Ratio/mg/mL) | X3 (Enzyme Concentration/%) | Y (DPPH· Scavenging Activity, %) | |
| 1 | 2 | 1:10 | 3 | 48.11 |
| 2 | 4 | 1:10 | 3 | 48.57 |
| 3 | 2 | 1:20 | 3 | 49.73 |
| 4 | 4 | 1:20 | 3 | 51.35 |
| 5 | 2 | 1:15 | 2 | 47.97 |
| 6 | 4 | 1:15 | 2 | 50.84 |
| 7 | 2 | 1:15 | 4 | 43.39 |
| 8 | 4 | 1:15 | 4 | 48.39 |
| 9 | 3 | 1:10 | 2 | 45.94 |
| 10 | 3 | 1:20 | 2 | 53.67 |
| 11 | 3 | 1:10 | 4 | 48.53 |
| 12 | 3 | 1:20 | 4 | 50.89 |
| 13 | 3 | 1:15 | 3 | 52.42 |
| 14 | 3 | 1:15 | 3 | 53.53 |
| 15 | 3 | 1:15 | 3 | 52.28 |
| 16 | 3 | 1:15 | 3 | 53.34 |
| 17 | 3 | 1:15 | 3 | 54.92 |