Table 2.
The predicted and observed OTA degradation results for Box–Benken Design matrix
| Exp. no | Variables | OTA Degradation (%) | |||
|---|---|---|---|---|---|
| X3 (Sucrose; %) | X6 (Yeast Extract; %) | X10 (Wheat Bran;%) | Observed | Predicted | |
| 1 | 2 (0) | 0.3 (+ 1) | 0.3 (+ 1) | 46.22 | 45.78 |
| 2 | 2 (0) | 0.2 (0) | 0.2 (0) | 40.67 | 41.29 |
| 3 | 1 (− 1) | 0.2 (0) | 0.1 (− 1) | 40.89 | 39.55 |
| 4 | 2 (0) | 0.2 (0) | 0.2 (0) | 41.78 | 41.29 |
| 5 | 1 (− 1) | 0.1 (− 1) | 0.2 (0) | 37.78 | 38.67 |
| 6 | 2 (0) | 0.1 (− 1) | 0.1 (− 1) | 36.00 | 36.44 |
| 7 | 2 (0) | 0.2 (0) | 0.2 (0) | 42.22 | 41.29 |
| 8 | 2 (0) | 0.3 (+ 1) | 0.1 (− 1) | 40.89 | 41.33 |
| 9 | 3 (+ 1) | 0.3 (+ 1) | 0.2 (0) | 45.33 | 44.44 |
| 10 | 1 (− 1) | 0.3 (+ 1) | 0.2 (0) | 41.78 | 42.67 |
| 11 | 2 (0) | 0.2 (0) | 0.2 (0) | 40.00 | 41.29 |
| 12 | 3 (+ 1) | 0.2 (0) | 0.3 (+ 1) | 45.33 | 46.67 |
| 13 | 3 (+ 1) | 0.2 (0) | 0.1 (− 1) | 40.00 | 40.44 |
| 14 | 1 (− 1) | 0.2 (0) | 0.3 (+ 1) | 44.44 | 44.00 |
| 15 | 2 (0) | 0.1 (− 1) | 0.3 (+ 1) | 43.11 | 42.67 |
| 16 | 3 (+ 1) | 0.1 (− 1) | 0.2 (0) | 41.33 | 40.44 |
| 17 | 2 (0) | 0.2 (0) | 0.2 (0) | 41.33 | 41.26 |