Table 2.
Box–Behnken three variables experimental design for development of hydrogel-based packaging film.
| Experiment no. | Coded value | Actual value | ||||
|---|---|---|---|---|---|---|
| X 1 | X 2 | X 3 | Initiator (mg/100 mL GS) | Cross linker (mg/100 mL GS) | Glycerol (mL/100 mL GS) | |
| 1 | −1 | −1 | 0 | 0.05 | 0.02 | 4 |
| 2 | 0 | 0 | 0 | 0.1 | 0.05 | 4 |
| 3 | 0 | −1 | 1 | 0.1 | 0.02 | 6 |
| 4 | 0 | 0 | 0 | 0.1 | 0.05 | 4 |
| 5 | 1 | 0 | 1 | 0.15 | 0.05 | 6 |
| 6 | 0 | 0 | 0 | 0.1 | 0.05 | 4 |
| 7 | 0 | 0 | 0 | 0.1 | 0.05 | 4 |
| 8 | 1 | 1 | 0 | 0.15 | 0.08 | 4 |
| 9 | 0 | 1 | 1 | 0.1 | 0.08 | 6 |
| 10 | 1 | −1 | 0 | 0.15 | 0.02 | 4 |
| 11 | 0 | −1 | −1 | 0.1 | 0.02 | 2 |
| 12 | 1 | 0 | −1 | 0.15 | 0.05 | 2 |
| 13 | −1 | 1 | 0 | 0.05 | 0.08 | 4 |
| 14 | 0 | 0 | 0 | 0.1 | 0.05 | 4 |
| 15 | 0 | 1 | −1 | 0.1 | 0.08 | 2 |
| 16 | −1 | 0 | −1 | 0.05 | 0.05 | 2 |
| 17 | −1 | 0 | 1 | 0.05 | 0.05 | 6 |