Table 3.
α-Glucosidase inhibitory activity of plant extracts and total phenol content (TPC)
| Material/Plant | Part used | Extract | IC50 (mg/ml) | TPC ± SD |
|---|---|---|---|---|
| Acarbose | - | - | 0.0009 | NT |
| Gentiana olivieri | Aerial part | HA | 0.1982 | 57.4 ± 2.7 |
| Helichrysum graveolens | Capitulum | HA Aq |
0.7129 2.1979 |
143.4 ± 9.4 92.9 ± 2.0 |
| H. plicatum ssp. plicatum | Capitulum | HA Aq |
0.8570 5.0933 |
139.5 ± 6.5 85.6 ± 15.7 |
| Juniperus communis var. saxatilis | Fruit Leaf |
HA HA |
0.0044 0.0843 |
21.0 ± 10.1 212.1 ± 9.9 |
| J. oxycedrus ssp. oxycedrus | Fruit | HA Aq |
- 0.8054 |
4.8 ± 2.2 24.8 ± 0.7 |
| Leaf | HA Aq |
0.0473 0.2606 |
191.0 ± 1.3 160.4 ± 2.7 |
|
| Viscum album ssp. album | Aerial part | HA Aq |
0.7962 3.7411 |
21.2 ± 2.0 32.0 ± 0.2 |
| V. album ssp. austriacum | Aerial part | HA Aq |
0.6653 1.3583 |
35.8 ± 1.3 47.9 ± 0.8 |
Total phenol content data is expressed in mg equivalent of gallic acid (GAE) to of extract.
SD: Standard deviation, NT: Not tested, -:no activity, HA: Hydro-alcoholic, Aq: Aqueous