Table 1 Experimental designs and the results of CCD
Run | A(X1)a | B( X2)b | C(X3)c | D(X4)d | Conversion rate (%) | |||
|---|---|---|---|---|---|---|---|---|
I II Average predicted | ||||||||
1 | -1 | -1 | -1 | -1 | 49.00 | 37.50 | 38.25 ± 1.06 | 40.81 |
2 | 1 | -1 | -1 | -1 | 49.77 | 47.47 | 48.62 ± 1.63 | 49.85 |
3 | -1 | 1 | -1 | -1 | 70.77 | 67.95 | 69.36 ± 2.00 | 69.55 |
4 | 1 | 1 | -1 | -1 | 72.66 | 69.04 | 70.85 ± 2.56 | 73.65 |
5 | -1 | -1 | 1 | -1 | 45.99 | 34.31 | 40.15 ± 8.26 | 46.72 |
6 | 1 | -1 | 1 | -1 | 51.90 | 56.00 | 53.95 ± 2.90 | 57.31 |
7 | -1 | 1 | 1 | -1 | 77.98 | 77.50 | 77.74 ± 0.34 | 75.84 |
8 | 1 | 1 | 1 | -1 | 81.98 | 79.62 | 80.8 ± 1.68 | 81.80 |
9 | -1 | -1 | -1 | 1 | 60.21 | 56.53 | 58.37 ± 2.60 | 61.21 |
10 | 1 | -1 | -1 | 1 | 66.99 | 71.85 | 69.42 ± 3.44 | 73.48 |
11 | -1 | 1 | -1 | 1 | 76.09 | 78.47 | 77.28 ± 1.69 | 76.08 |
12 | 1 | 1 | -1 | 1 | 85.99 | 86.91 | 86.45 ± 0.65 | 83.42 |
13 | -1 | -1 | 1 | 1 | 65.33 | 70.65 | 67.99 ± 3.76 | 67.34 |
14 | 1 | -1 | 1 | 1 | 76.00 | 79.62 | 77.81 ± 2.55 | 81.86 |
15 | -1 | 1 | 1 | 1 | 82.98 | 77.58 | 80.28 ± 3.83 | 82.59 |
16 | 1 | 1 | 1 | 1 | 90.09 | 93.69 | 91.89 ± 2.55 | 91.48 |
17 | -2 | 0 | 0 | 0 | 62.90 | 56.84 | 59.87 ± 4.29 | 57.35 |
18 | 2 | 0 | 0 | 0 | 78.90 | 78.02 | 78.46 ± 0.63 | 75.27 |
19 | 0 | -2 | 0 | 0 | 56.09 | 63.65 | 59.87 ± 5.34 | 51.05 |
20 | 0 | 2 | 0 | 0 | 88.98 | 85.02 | 87.00 ± 2.80 | 90.11 |
21 | 0 | 0 | -2 | 0 | 70.02 | 60.50 | 65.26 ± 6.73 | 63.39 |
22 | 0 | 0 | 2 | 0 | 80.99 | 81.39 | 81.19 ± 0.28 | 77.36 |
23 | 0 | 0 | 0 | -2 | 63.60 | 57.30 | 60.45 ± 4.45 | 55.54 |
24 | 0 | 0 | 0 | 2 | 85.99 | 87.43 | 86.71 ± 1.02 | 85.07 |
25 | 0 | 0 | 0 | 0 | 56.99 | 59.93 | 58.46 ± 2.07 | 58.43 |
26 | 0 | 0 | 0 | 0 | 58.46 | 59.45 | 58.95 ± 0.07 | 58.43 |
27 | 0 | 0 | 0 | 0 | 60.09 | 56.83 | 58.46 ± 2.31 | 58.43 |
28 | 0 | 0 | 0 | 0 | 58.46 | 57.51 | 57.98 ± 0.67 | 58.43 |
29 | 0 | 0 | 0 | 0 | 60.82 | 55.18 | 58.00 ± 3.99 | 58.43 |
30 | 0 | 0 | 0 | 0 | 58.46 | 59.01 | 58.73 ± 0.39 | 58.43 |