Table 2. L18 (21 × 37) orthogonal array of designed experiments.
| Column | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Experiment No. | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | Laccase Activity (Ugds−1) ± S.D. |
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1576.13 ± 4.75 |
| 2 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 1330.46 ± 61.18 |
| 3 | 1 | 1 | 3 | 3 | 3 | 3 | 3 | 3 | 667.66 ± 5.57 |
| 4 | 1 | 2 | 1 | 1 | 2 | 2 | 3 | 3 | 1053.48 ± 48.88 |
| 5 | 1 | 2 | 2 | 2 | 3 | 3 | 1 | 1 | 1075.54 ± 10.79 |
| 6 | 1 | 2 | 3 | 3 | 1 | 1 | 2 | 2 | 830.08 ± 11.34 |
| 7 | 1 | 3 | 1 | 2 | 1 | 3 | 2 | 3 | 206.26 ± 9.62 |
| 8 | 1 | 3 | 2 | 3 | 2 | 1 | 3 | 1 | 759.86 ± 38.69 |
| 9 | 1 | 3 | 3 | 1 | 3 | 2 | 1 | 2 | 259.13 ± 1.06 |
| 10 | 2 | 1 | 1 | 3 | 3 | 2 | 2 | 1 | 310.35 ± 6.15 |
| 11 | 2 | 1 | 2 | 1 | 1 | 3 | 3 | 2 | 783.21 ± 21.62 |
| 12 | 2 | 1 | 3 | 2 | 2 | 1 | 1 | 3 | 524.93 ± 5.33 |
| 13 | 2 | 2 | 1 | 2 | 3 | 1 | 3 | 2 | 643.64 ± 18.12 |
| 14 | 2 | 2 | 2 | 3 | 1 | 2 | 1 | 3 | 730.47 ± 75.31 |
| 15 | 2 | 2 | 3 | 1 | 2 | 3 | 2 | 1 | 952.21 ± 26.91 |
| 16 | 2 | 3 | 1 | 3 | 2 | 3 | 1 | 2 | 49.23 ± 1.40 |
| 17 | 2 | 3 | 2 | 1 | 3 | 1 | 2 | 3 | 311.32 ± 9.92 |
| 18 | 2 | 3 | 3 | 2 | 1 | 2 | 3 | 1 | 213.46 ± 0.71 |
S.D. = Standard deviation.