Table 2.
Effect of feruloylated arabinoxylan on intestinal α-glucosidase when sucrose or maltose was used as substrate.
| IC50 (mg/mL) | ||
|---|---|---|
| Maltose | Sucrose | |
| WA-f50 | 4.88 ± 0.30d (0.49) | ∗ |
| WA-f75 | 10.14 ± 0.56a (1.01) | ∗ |
| WB-f50 | 5.73 ± 0.19c (0.57) | ∗ |
| WB-f75 | 8.15 ± 0.46b (0.81) | ∗ |
| Acarbose | 0.005 ± 0.00e (~0.0005) | 0.003 ± 0.00 |
Values presented as mean ± standard deviation (n = 6). Data in the same column with the same superscript are not significantly different at p ≤ 0.05. Data in parenthesis are IC50 values in % w/v. IC50 value is the sample concentration resulting in 50% inhibition of α-glucosidase activity. WA-f50 and WA-f75: water-extractable fractions from WA obtained at 50 and 75% ammonium sulphate saturation, respectively. WB-f50 and WB-f75: water-extractable from WB obtained at 50 and 75% ammonium sulphate saturation, respectively.