Table 4.
Antioxidant activity as (% and IC50) of isolated compound from C.vulgaris (0.316 mg/L Cu) compared with (BHT) and (vitamin C) against DPPH (%) radical method
| Compound | Isolated compound | BHT | Vitamin C | |||
|---|---|---|---|---|---|---|
| conc. μg/ml (μg/ml) | ||||||
| 30 min. | 60 min. | 30 min. | 60 min. | 30 min. | 60 min. | |
| 250 | 84.1±1.02a | 85.32±1.22a | 92.7±1.0a | 93.2±2.2a | 90.3±1.0a | 90.9±2.2a |
| 125 | 76.99±1.1b | 80.24±1.35b | 90.3±0.9b | 89.0±2.0b | 88.8±0.9b | 88.3±1.9b |
| 62.50 | 72.74±1.2c | 77.04±1.24c | 84.4±0.4c | 84.9±2.0c | 83.7±1.1c | 85.9±1.0c |
| 31.25 | 69.6±1.9d | 73.74±1.02d | 72.7±0.5d | 73.2±1.9d | 68.2±0.7d | 69.5±0.9d |
| 15.62 | 68±0.97d | 73.74±1.00d | 70.2±0.8d | 69.4±1.2e | 64.4±0.5e | 63.0±0.9e |
| IC50 | 11.48 | 10.59 | 11.1 | 11.2 | 12.1 | 12.9 |
Different small letters on the column for each time indicate significant difference (p< 0.05) Error bars represent ±SD of three replicates