Table 3.
Free radical scavenging activity and reducing power of the ethanolic extracts from ginseng samples
| Group1) | Free radical scavenging activity (%) | Reducing power (OD at 700 nm) | |
|---|---|---|---|
|
|
|
||
| 5.0 mg/mL | 0.5 mg/mL | 100 mg/mL | |
| Ascorbic acid | 87.52±0.43d | 35.01±1.80d | 0.69±0.00c |
| WG | 26.67±0.61a | 4.72±0.61a | 0.28±0.00a |
| RG | 42.06±0.76b | 7.10±0.74b | 0.33±0.03a |
| AG-4 | 83.53±0.29c | 10.00±0.83c | 0.47±0.02b |
| AG-5 | 83.47±0.10c | 11.19±1.45c | 0.49±0.00b |
1)
WG, white ginseng; RG, red ginseng; AG4, aged 4-year-old ginseng; AG5, aged 5-year-old ginseng.
Values are means±SD (n=3). Means in the same column followed by different letters (a–d) are significantly different at P<0.05.