Table 4 Encoding table of experimental parameters for fermentation condition optimization and the corresponding yield.
Serial number | Temperature/℃ | PH | Inoculum size (mL) | Amount of sodium glutamate added (g/L) | Amount of sodium citrate addition (g/L) | Yield (g/L) |
|---|---|---|---|---|---|---|
1 | 1 | 0 | 0 | 0 | 1 | 9.31 |
2 | 0 | 1 | 0 | 1 | 0 | 11.16 |
3 | 0 | 1 | 0 | 0 | 1 | 12.23 |
4 | 0 | 1 | 0 | 0 | − 1 | 11.12 |
5 | 0 | 0 | 0 | 0 | 0 | 23.76 |
6 | 0 | 1 | 1 | 0 | 0 | 9.36 |
7 | 1 | 0 | 1 | 0 | 0 | 9.31 |
8 | − 1 | − 1 | 0 | 0 | 0 | 8.35 |
9 | 0 | 0 | 0 | 0 | 0 | 23.55 |
10 | 0 | 0 | − 1 | 0 | − 1 | 11.4 |
11 | 0 | 0 | 0 | 0 | 0 | 23.25 |
12 | − 1 | 0 | 1 | 0 | 0 | 9.14 |
13 | 1 | 0 | − 1 | 0 | 0 | 9.27 |
14 | 0 | 0 | − 1 | − 1 | 0 | 10.05 |
15 | 0 | 0 | 1 | 0 | − 1 | 9.5 |
16 | 0 | − 1 | 0 | 1 | 0 | 10.13 |
17 | 0 | 0 | − 1 | 0 | 1 | 10.8 |
18 | 0 | − 1 | 1 | 0 | 0 | 10.27 |
19 | 0 | 0 | − 1 | 1 | 0 | 12.23 |
20 | 0 | 1 | − 1 | 0 | 0 | 8.2 |
21 | 0 | 0 | 1 | 1 | 0 | 9.27 |
22 | 0 | 0 | 1 | − 1 | 0 | 11.16 |
23 | 1 | 0 | 0 | 0 | − 1 | 10.13 |
24 | 0 | 0 | 0 | 0 | 0 | 11 |
25 | 0 | 1 | 0 | − 1 | 0 | 23.62 |
26 | 0 | 0 | 0 | 0 | 0 | 9.24 |
27 | 0 | 0 | 0 | − 1 | 1 | 10.14 |
28 | 0 | − 1 | − 1 | 0 | 0 | 23.51 |
29 | 0 | 0 | 0 | 1 | 1 | 10.13 |
30 | − 1 | 0 | 0 | 1 | 0 | 11.15 |
31 | − 1 | 0 | 0 | − 1 | 0 | 10.94 |
32 | 1 | − 1 | 0 | 0 | 0 | 8.9 |
33 | 1 | 0 | 0 | − 1 | 0 | 10.35 |
34 | 0 | 0 | 0 | 0 | 0 | 8.35 |
35 | − 1 | 0 | 0 | 0 | − 1 | 8.22 |
36 | 0 | − 1 | 0 | − 1 | 0 | 9.33 |
37 | 1 | 1 | 0 | 0 | 0 | 8.14 |
38 | − 1 | 0 | 0 | 0 | 1 | 10.11 |
39 | 0 | 0 | 0 | − 1 | − 1 | 10.89 |
40 | 1 | 0 | 0 | 1 | 0 | 10.76 |
41 | − 1 | 0 | − 1 | 0 | 0 | 11.2 |
42 | − 1 | 1 | 0 | 0 | 0 | 9.21 |
43 | 0 | 0 | 1 | 0 | 1 | 10.05 |
44 | 0 | − 1 | 0 | 0 | 1 | 23.51 |
45 | 0 | − 1 | 0 | 0 | − 1 | 9.4 |
46 | 0 | 0 | 0 | 1 | − 1 | 11.15 |
