|
| Variables and levels | |
| Run | Limonene (% v/v) | pH |
| 1 | ? (0.16) | ? (6.35) |
| 2 | ? (0.16) | + (7.05) |
| 3 | + (0.44) | ? (6.35) |
| 4 | + (0.44) | + (7.05) |
| 5 | a (0.10) | 0 (6.7) |
| 6 | A (0.50) | 0 (6.7) |
| 7 | 0 (0.30) | a (6.2) |
| 8 | 0 (0.30) | A (7.2) |
| 9 | 0 (0.30) | 0 (6.7) |
| 10 | 0 (0.30) | 0 (6.7) |
| 11 | 0 (0.30) | 0 (6.7) |