Table 3 Matrix designed for B. licheniformis strain ALP3 SCCD
StdOrder | Trials |  | Variables | ALP productivity (U L−1 min−1) | ||||
|---|---|---|---|---|---|---|---|---|
Type | X1 | X2 | X3 | Actual value | Predicted value | Residual | ||
27 | 1 | Axial | 0 | 0 | 1.73 | 117.78 | 121.806 | − 4.0267 |
9 | 2 | Factorial | − 1 | − 1 | 1 | 100.62 | 99.4245 | 1.1975 |
12 | 3 | Factorial | 1 | − 1 | 1 | 123.88 | 121.488 | 2.3985 |
15 | 4 | Factorial | 1 | 1 | 1 | 126.21 | 128.518 | − 2.3046 |
34 | 5 | Center | 0 | 0 | 0 | 121.85 | 121.463 | 0.3877 |
21 | 6 | Axial | 0 | − 1.73 | 0 | 113.12 | 113.826 | − 0.6992 |
11 | 7 | Factorial | 1 | − 1 | 1 | 122.72 | 121.488 | 1.2353 |
24 | 8 | Axial | 0 | 1.73 | 0 | 107.89 | 107.491 | 0.4014 |
30 | 9 | Center | 0 | 0 | 0 | 120.68 | 121.463 | − 0.7755 |
37 | 10 | Center | 0 | 0 | 0 | 121.85 | 121.463 | 0.3877 |
14 | 11 | Factorial | − 1 | 1 | 1 | 92.479 | 88.1329 | 4.3463 |
25 | 12 | Axial | 0 | 0 | − 1.73 | 106.72 | 104.454 | 2.2748 |
16 | 13 | Factorial | 1 | 1 | 1 | 127.66 | 128.518 | − 0.8505 |
33 | 14 | Center | 0 | 0 | 0 | 121.85 | 121.463 | 0.3877 |
2 | 15 | Factorial | − 1 | − 1 | − 1 | 130.57 | 126.921 | 3.6548 |
18 | 16 | Axial | − 1.73 | 0 | 0 | 88.989 | 93.4818 | − 4.4923 |
4 | 17 | Factorial | 1 | − 1 | − 1 | 72.994 | 77.0086 | − 4.0139 |
38 | 18 | Center | 0 | 0 | 0 | 121.85 | 121.463 | 0.3877 |
7 | 19 2 | Factorial | 1 | 1 |  − 1 | 79.683 | 80.9847 | − 1.3013 |
20 | 20 | Axial | 1.73 | 0 | 0 | 87.535 | 85.2310 | 2.3043 |
36 | 21 | Center | 0 | 0 | 0 | 120.68 | 121.463 | − 0.7755 |
40 | 22 | Center | 0 | 0 | 0 | 121.85 | 121.463 | 0.3877 |
29 | 23 | Center | 0 | 0 | 0 | 121.27 | 121.463 | − 0.1938 |
31 | 24 | Center | 0 | 0 | 0 | 120.68 | 121.463 | − 0.7755 |
6 | 25 | Factorial | − 1 | 1 | − 1 | 111.96 | 112.576 | − 0.6121 |
22 | 26 | Axial | 0 | − 1.73 | 0 | 112.54 | 113.826 | − 1.2808 |
39 | 27 | Center | 0 | 0 | 0 | 121.85 | 121.463 | 0.3877 |
17 | 28 | Axial | − 1.73 | 0 | 0 | 90.152 | 93.4818 | − 3.3290 |
23 | 29 | Axial | 0 | 1.73 | 0 | 107.02 | 107.491 | − 0.4709 |
19 | 30 | Axial | 1.73 | 0 | 0 | 88.698 | 85.2310 | 3.4675 |
5 | 31 | Factorial | − 1 | 1 | − 1 | 111.09 | 112.576 | − 1.4846 |
28 | 32 | Axial | 0 | 0 | 1.73 | 119.23 | 121.806 | − 2.5726 |
1 | 33 | Factorial | − 1 | − 1 | − 1 | 127.95 | 126.921 | 1.0374 |
32 | 34 | Center | 0 | 0 | 0 | 121.27 | 121.463 | − 0.1938 |
8 | 35 | Factorial | 1 | 1 | − 1 | 80.265 | 80.9847 | − 0.7197 |
3 | 36 | Factorial | 1 | − 1 | − 1 | 73.867 | 77.0086 | − 3.1415 |
26 | 37 | Axial | 0 | 0 | − 1.73 | 106.72 | 104.454 | 2.2748 |
35 | 38 | Center | 0 | 0 | 0 | 121.85 | 121.463 | 0.3877 |
10 | 39 | Factorial | − 1 | − 1 | 1 | 101.78 | 99.4245 | 2.3607 |
13 | 40 | Factorial | − 1 | 1 | 1 | 92.479 | 88.1329 | 4.3463 |
Variables | Code | Coded and actual levels | ||||
|---|---|---|---|---|---|---|
− 1.73 | − 1 | 0 | 1 | 1.73 | ||
Crab shells powder | X1 | 12 | 24 | 36 | 48 | 60 |
ZnSO4.7H2O | X2 | 0.001 | 0.002 | 0.003 | 0.004 | 0.005 |
CoCl2.6H2O | X3 | 0.001 | 0.002 | 0.003 | 0.004 | 0.005 |