Table 1.
Alpha-glucosidase inhibition (IC50) by extracts and fractions.
| Bio-source | Extracts | IC50 µg/mL |
|---|---|---|
| Tecoma stans | Crude MeOH | 205.7 |
| n-Hexane (Extract H) | >200 | |
| n-Hexane: ethyl acetate (Extract HEA) | 89.8 | |
| Ethyl acetate (Extract EA) | >200 | |
| Fraction HEA1 | >200 | |
| Fraction HEA2 | >200 | |
| Fraction HEA3 | 137.2 | |
| Fraction HEA4 | 87.8 | |
| Fraction HEA5 | >200 | |
| Nervilia concolor | Crude EtOH | 79.9 |
| n-Hexane (Extract H) | 37.6 | |
| Chlroform (Extract C) | 35.4 | |
| Ethyl acetate (Extract EA) | 18.4 | |
| Bouea macrophylla | Crude MeOH | 185.4 |
| n-Hexane (Extract H) | >200 | |
| n-Hexane: ethyl acetate (Extract HEA) | 98.3 | |
| Ethyl acetate (Extract EA) | >200 | |
| Fraction HEA1 | >200 | |
| Fraction HEA2 | >200 | |
| Fraction HEA3 | 78.8 | |
| Fraction HEA4 | 96.4 | |
| Fraction HEA5 | >200 |