Table 3 Factor values for independent variables and response variable (experimental and predicted) of screening experiments to optimize fermentation conditions
From: Vinasse: from a residue to a high added value biopolymer
Run | C/N | T (°C) | t (h) | P—experimental (mg/L h) | P—predicted (mg/L h) |
|---|---|---|---|---|---|
1 | − 1 | − 1 | 0 | 5.1 | 5.3 |
2 | 1 | − 1 | 0 | 5.5 | 4.6 |
3 | − 1 | 1 | 0 | 4.4 | 5.3 |
4 | 1 | 1 | 0 | 4.0 | 3.9 |
5 | − 1 | 0 | − 1 | 9.7 | 9.9 |
6 | 1 | 0 | − 1 | 4.0 | 5.3 |
7 | − 1 | 0 | 1 | 3.0 | 1.8 |
8 | 1 | 0 | 1 | 4.5 | 4.4 |
9 | 0 | − 1 | − 1 | 10.3 | 10.0 |
10 | 0 | 1 | − 1 | 9.5 | 8.5 |
11 | 0 | − 1 | 1 | 3.2 | 4.3 |
12 | 0 | 1 | 1 | 4.8 | 5.2 |
13 | 0 | 0 | 0 | 6.9 | 6.6 |
14 | 0 | 0 | 0 | 6.3 | 6.6 |
15 | 0 | 0 | 0 | 6.5 | 6.6 |