Research Article
Improvement of D-Ribose Production from Corn Starch Hydrolysate by a Transketolase-Deficient Strain Bacillus subtilis UJS0717
Table 5
Box-Behnken design matrix along with the experimental and predicted values.
| | Run |
Actual and coded level of variables | D-Ribose production (g/L) | | (g/L) | (g/L) | (g/L) | Experimental | Predicted |
| | 1 | 150 (0) | 20 (0) | 3.0 (0) | 60.64 ± 1.34 | 60.29 | | 2 | 150 (0) | 25 (+1) | 4.5 (+1) | 54.32 ± 2.12 | 54.25 | | 3 | 180 (+1) | 25 (+1) | 3.0 (0) | 52.09 ± 1.22 | 51.31 | | 4 | 150 (0) | 15 (−1) | 1.5 (−1) | 49.49 ± 2.01 | 49.56 | | 5 | 150 (0) | 20 (0) | 3.0 (0) | 60.20 ± 1.67 | 60.29 | | 6 | 180 (+1) | 20 (0) | 4.5 (+1) | 50.23 ± 1.34 | 51.08 | | 7 | 120 (−1) | 25 (+1) | 3.0 (0) | 40.82 ± 3.10 | 41.61 | | 8 | 120 (−1) | 20 (0) | 4.5 (+1) | 42.00 ± 3.12 | 41.28 | | 9 | 180 (+1) | 20 (0) | 1.5 (−1) | 47.92 ± 1.45 | 48.64 | | 10 | 180 (+1) | 15 (−1) | 3.0 (0) | 50.72 ± 1.33 | 49.93 | | 11 | 150 (0) | 20 (0) | 3.0 (0) | 60.04 ± 2.03 | 60.29 | | 12 | 150 (0) | 25 (+1) | 1.5 (−1) | 53.64 ± 1.34 | 53.71 | | 13 | 120 (−1) | 20 (0) | 1.5 (−1) | 38.92 ± 1.43 | 38.07 | | 14 | 120 (−1) | 15 (−1) | 3.0 (0) | 38.48 ± 1.98 | 39.26 | | 15 | 150 (0) | 15 (−1) | 4.5 (+1) | 54.75 ± 2.50 | 54.68 |
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