Table 2 Central composite design matrix of the independent variables with the corresponding experimental values of biomass concentration
From: Media optimization for economic succinic acid production by Enterobacter sp. LU1.
Run | Crude glycerol (x1) (g/L) | Urea (x2) (g/L) | MgSO4 × 7H2O (x3) (g/L) | Biomass (g/L) |
|---|---|---|---|---|
1 | 10 | 1 | 0.1 | 3.27 ± 0.02 |
2 | 30 | 1 | 0.1 | 6.99 ± 0.14 |
3 | 10 | 3 | 0.1 | 3.16 ± 0.24 |
4 | 30 | 3 | 0.1 | 7.89 ± 0.18 |
5 | 10 | 1 | 0.3 | 3.36 ± 0.04 |
6 | 30 | 1 | 0.3 | 6.83 ± 0.13 |
7 | 10 | 3 | 0.3 | 2.98 ± 0.15 |
8 | 30 | 3 | 0.3 | 7.47 ± 0.19 |
9 | 3.2 | 2 | 0.2 | 1.31 ± 0.03 |
10 | 36.8 | 2 | 0.2 | 8.08 ± 0.12 |
11 | 20 | 0.32 | 0.2 | 2.61 ± 0.09 |
12 | 20 | 3.68 | 0.2 | 5.26 ± 0.1 |
13 | 20 | 2 | 0.032 | 5.65 ± 0.15 |
14 | 20 | 2 | 0.368 | 6.24 ± 0.29 |
15 | 20 | 2 | 0.2 | 6.01 ± 0.12 |
16 | 20 | 2 | 0.2 | 5.94 ± 0.07 |
17 | 20 | 2 | 0.2 | 6.02 ± 0.11 |
18 | 20 | 2 | 0.2 | 6.01 ± 0.09 |
19 | 20 | 2 | 0.2 | 5.96 ± 0.15 |
20 | 20 | 2 | 0.2 | 6.01 ± 0.06 |