Table 2 Experimental design matrix and results
Number | Factor | LCEPS production actual value/(g/L) | LCEPS production predictive value/(g/L) | |||
|---|---|---|---|---|---|---|
Fermentation time (h) X1 | Fermentation temperature (°C) X2 | Sucrose concentration (%) X3 | Inoculation amount (%) X4 | |||
1 | −1 | −1 | 0 | −1 | 44.59 | 43.86 |
2 | −1 | 0 | −1 | 1 | 41.81 | 43.42 |
3 | −1 | 1 | 1 | 0 | 45.84 | 46.39 |
4 | −1 | −1 | 0 | −1 | 38.96 | 38.45 |
5 | 0 | 0 | 0 | 0 | 46.92 | 48.58 |
6 | −1 | −1 | -1 | 1 | 40.06 | 39.40 |
7 | -1 | 0 | 1 | 1 | 51.99 | 51.82 |
8 | -1 | 0 | 0 | 1 | 49.13 | 49.05 |
9 | 0 | 1 | -1 | 0 | 40.30 | 39.39 |
10 | 0 | 1 | 1 | 1 | 48.35 | 46.75 |
11 | 0 | 1 | -1 | -1 | 37.51 | 37.52 |
12 | 0 | 0 | 0 | 0 | 47.73 | 48.58 |
13 | 0 | -1 | 1 | -1 | 38.11 | 37.46 |
14 | 0 | -1 | 1 | 0 | 40.24 | 41.90 |
15 | 0 | 1 | 1 | 0 | 48.19 | 47.43 |
16 | 0 | -1 | 0 | 0 | 41.45 | 41.64 |
17 | 0 | 1 | 0 | 0 | 45.28 | 44.84 |
18 | 1 | 1 | 0 | 1 | 49.87 | 51.55 |
19 | 1 | -1 | 0 | -1 | 38.01 | 38.35 |
20 | 1 | -1 | 0 | 1 | 47.11 | 48.47 |
21 | 1 | 1 | 1 | 1 | 53.14 | 53.57 |
22 | 1 | 1 | 1 | 0 | 49.82 | 50.09 |
23 | 1 | 1 | -1 | -1 | 40.15 | 40.92 |
24 | 1 | -1 | -1 | -1 | 36.55 | 36.59 |
25 | 1 | 0 | 1 | 0 | 52.35 | 51.82 |
26 | 1 | 0 | 1 | 1 | 55.96 | 56.20 |
27 | 1 | 0 | -1 | 0 | 48.90 | 48.04 |
28 | 1 | 0 | 0 | 0 | 53.02 | 51.35 |
29 | 1 | -1 | 1 | 1 | 49.19 | 48.16 |
30 | 1 | 0 | 0 | 1 | 56.39 | 55.34 |