Table 3.
Kinetic parameters of α-glucosidase inhibition by plant extracts and their different fractions.
| Plant extracts | Km mM | Vmax μM.min−1 |
|---|---|---|
| α-Glucosidase without inhibitor | 2.29 ± 0.005 | 0.0016 ± 0.0000 |
| Salvia mirzayanii ethyl acetate fraction | 1.36 ± 0.001 | 0.0002 ± 0.00001 |
| Salvia mirzayanii petroleum ether fraction | 5.4 ± 0.005 | 0.0012 ± 0.00006 |
| Salvia mirzayanii chloroform fraction | 1.28 ± 0.006 | 0.0009 ± 0.00002 |
| Salvia mirzayanii ethanol extract | 2.64 ± 0.003 | 0.0004 ± 0.00002 |
| Zataria multiflora ethyl acetate fraction | 5.81 ± 0.005 | 0.0007 ± 0.00001 |
| Zataria multiflora petroleum ether fraction | 4.51 ± 0.002 | 0.0012 ± 0.00004 |
| Zataria multiflora chloroform fraction | 2.99 ± 0.005 | 0.0008 ± 0.00002 |
| Otostegia persica chloroform fraction | 1.66 ± 0.004 | 0.0003 ± 0.00001 |
| Otostegia persica butanolic fraction | 5.7 ± 0.002 | 0.0013 ± 0.00003 |
| Otostegia persica ethyl acetate fraction | 3.99 ± 0.003 | 0.0013 ± 0.00002 |