| Hydrolysis time (h) | Decolorization rate (%) | |||||
| 3 min | 6 min | 9 min | 12 min | 15 min | 18 min | |
| 0.5 | 75.7 | 92.7 | 97.9 | 98.2 | 99.9 | 99.9 |
| 1.0 | 54.6 | 89.7 | 94.9 | 97.2 | 98.7 | 98.7 |
| 2.0 | 80.2 | 93.6 | 98.0 | 99.1 | 99.6 | 99.6 |
| 4.0 | 84.5 | 93.9 | 98.6 | 99.1 | 100 | 100 |