Table 3.
Total phenolic and flavonoid content, and antioxidant activities of H. androsaemum extracts.
| IC50 values (mg/mL) | A0.5 (µg/mL) | |||||
|---|---|---|---|---|---|---|
| Samples | Phenolic content(μg PEs/mg extract)† | Flavonoid content(μg QEs/mg extract)‡ | DPPH free radical | ABTS cation radical | Metal chelate | CUPRAC |
| LD | 46.01 ± 0.56 | 86.74 ± 2.29 | 67.58 ± 0.24 | 26.50 ± 0.62 | 141.06 ± 0.72 | 41.27 ± 0.55 |
| FD | 47.83 ± 1.56 | 9.24 ± 0.72 | 93.23 ± 1.06 | 68.81 ± 1.02 | 117.24 ± 1.55 | 37.68 ± 0.27 |
| LM | 108.51 ± 1.28 | 38.48 ± 0.51 | 10.94 ± 0.08 | 9.09 ± 0.05 | 96.56 ± 1.29 | 7.21 ± 0.05 |
| FM | 46.21 ± 0.26 | 8.28 ± 0.55 | 90.51 ± 0.86 | 48.22 ± 2.14 | >1000 | 70.03 ± 0.91 |
| LW | 88.59 ± 1.28 | 31.02 ± 0.75 | 29.83 ± 1.06 | 10.88 ± 0.44 | >1000 | 17.49 ± 0.58 |
| FW | 11.59 ± 0.00 | 2.14 ± 0.02 | >1000 | >1000 | 77.61 ± 0.79 | 81.28 ± 0.51 |
| BHA | - | - | 7.88 ± 0.20 | 2.74 ± 0.03 | - | 0.63 ± 0.02 |
| α-TOC | - | - | 16.30 ± 0.79 | 10.20 ± 0.05 | - | 13.38 ± 0.07 |
| BHT | - | - | 58.86 ± 0.50 | 3.16 ± 0.06 | - | 2.02 ± 0.01 |
| EDTA | - | - | - | - | 44.65 ± 0.43 | - |
*Values are means ± SD of three paralel measurements. † PEs, pyrocatechol equivalents y = 0.0276x + 0.0416 R2 = 0.9987.‡ QEs, quercetin equivalents y = 0.0277x + 0.0434 R2 = 0.9992.