Table 1 Experimental data for central composite design
Run | Algal biomass, g/L | Yeast volume % v/v | Fermentation time, h | Bioethanol production, g/L | |
|---|---|---|---|---|---|
Actual | Predicted | ||||
1 | 65.00 | 3.07 | 48.00 | 18.53 | 18.49 |
2 | 100.00 | 50.00 | 24.00 | 13.82 | 13.88 |
3 | 30.00 | 15.00 | 72.00 | 13.04 | 12.98 |
4 | 65.00 | 32.50 | 88.36 | 13.49 | 13.32 |
5 | 6.14 | 32.50 | 48.00 | 3.92 | 4.04 |
6 | 65.00 | 32.50 | 7.64 | 10.98 | 11.15 |
7 | 65.00 | 32.50 | 48.00 | 14.17 | 14.20 |
8 | 65.00 | 32.50 | 48.00 | 14.05 | 14.20 |
9 | 65.00 | 32.50 | 48.00 | 14.20 | 14.20 |
10 | 65.00 | 32.50 | 48.00 | 14.50 | 14.20 |
11 | 123.86 | 32.50 | 48.00 | 15.04 | 14.92 |
12 | 100.00 | 15.00 | 24.00 | 18.01 | 17.90 |
13 | 30.00 | 15.00 | 24.00 | 8.00 | 8.00 |
14 | 100.00 | 15.00 | 72.00 | 17.76 | 18.00 |
15 | 30.00 | 50.00 | 72.00 | 8.33 | 8.44 |
16 | 65.00 | 32.50 | 48.00 | 14.15 | 14.20 |
17 | 65.00 | 61.93 | 48.00 | 11.24 | 11.28 |
18 | 65.00 | 32.50 | 48.00 | 14.10 | 14.20 |
19 | 100.00 | 50.00 | 72.00 | 11.46 | 11.46 |
20 | 30.00 | 50.00 | 24.00 | 6.21 | 5.97 |