Table 1.
Sample | AGI activity (IC50 μg/mL) | Phytochemicals |
Antioxidant activity (IC50 in μg/mL) |
||
---|---|---|---|---|---|
Total phenolics (mg GA/g) | Total flavonoids (mg Q/g) | DPPH Assay | ABTS Assay | ||
Ethanol crude extract | 0.5 ± 0.04 | 414 ± 11 | 166 ± 29 | 12.5 ± 0.6 | 4.0 ± 0.5 |
Purified fraction-14 | 2.4 ± 0.40 | 178 ± 70 | - | 14.4 ± 0.1 | 7.6 ± 0.5 |
Ascorbic acid | - | - | - | 5.1 ± 0.1 | 3.9 ± 0.2 |
Acarbose | 2450 ± 24 | - | - | - | - |
Note: AGI activity and antioxidant activity are represented by IC50 values. Acarbose was used as a standard for AGI activity. Total phenolics are represented in mg GA per gram of extract. Total flavonoids are represented in mg Q per gram of extract. Ascorbic acid was used as standard for antioxidant activities. All the experiments are expressed as mean ± SD (n = 3). The values are statistically significant at p < 0.05.
Q: Quercetin, GA: Gallic acid, SD: Standard Deviation, “-“: Not determined.