Table 5.
Fitting equations of dose–effect relationships between enzyme inhibition rates and mass concentrations of polysaccharides extracted from Lycium barbarum leaves and their IC50.
| Samples | α-Glucosidase | α-Amylase | ||||
|---|---|---|---|---|---|---|
| Fitting Equations | R 2 | IC50 (mg/mL) |
Fitting Equations | R 2 | IC50 (mg/mL) |
|
| Acarbose | Y = 14.131 ln(X) + 70.565 | 0.9534 | 0.0002 | Y = 3.046X2 − 7.8893X + 8.9804 | 0.9960 | 5.187 |
| LLPt | Y = −7.225X2 + 49.279X − 21.649 | 0.9871 | 2.101 | Y = 2.3427X − 1.2074 | 0.9744 | 21.858 |
| LLP30 | Y = 35.678X − 19.384 | 0.9962 | 1.945 | Y = −0.1034X2 + 5.076X − 2.7315 | 0.9469 | 14.928 |
| LLP50 | Y = 54.854 ln(X) + 22.13 | 0.9507 | 1.659 | Y = 0.1567X2 + 0.2861X + 6.7586 | 0.9800 | 15.721 |
| LLP70 | Y = 41.227X − 28.403 | 0.9813 | 1.902 | Y = 0.0343X2 + 0.5153X + 3.9659 | 0.9760 | 29.885 |
Note: X and Y represented LLP concentrations (mg/mL) and enzyme inhibition rates (%), respectively.