| Experiment number | pH (rpm) | Amylase (U・L−1) |
| N1 | 4.2 | 0 |
| N2 | 4.8 | 0 |
| N3 | 4.2 | 600 |
| N4 | 4.8 | 600 |
| N5 | 4.2 | 300 |
| N6 | 4.8 | 300 |
| N7 | 4.5 | 0 |
| N8 | 4.5 | 600 |
| N9 | 4.5 | 300 |
| N10 | 4.5 | 300 |