Treatment | Time of reaction (minutes) | Volume of NaOH (mL/g) | Volume of acetic anhydride (mL/g) | Swelling capacity (%) |
Native | - | - | - | 125.76 |
1 | 2.5 | 0.15 | 125 | 200.30 |
2 | 2.5 | 0.15 | 125 | 199.75 |
3 | 2.5 | 0.15 | 125 | 210.75 |
4 | 2.0 | 0.10 | 120 | 150.00 |
5 | 2.0 | 0.20 | 120 | 176.67 |
6 | 2.0 | 0.10 | 130 | 183.33 |
7 | 2.0 | 0.20 | 130 | 196.97 |
8 | 3.0 | 0.10 | 120 | 187.27 |
9 | 3.0 | 0.20 | 120 | 197.27 |
10 | 3.0 | 0.10 | 130 | 212.42 |
11 | 3.0 | 0.20 | 130 | 231.21 |
Modified corn starcha | - | - | - | 364.55 |