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IC50 values of DPPH free radical scavenging activity and acetylcholinesterase inhibition by R. officinalis.
| Extract | DPPH Activity (µg/mL) | p Value **** | Anti-Cholinesterase Activity (µg/mL) | p Value **** |
|---|---|---|---|---|
| Catechin | 173 ± 8 | 0.0001 | 0.0001 | |
| Galanthamine | 0.0001 | 4.73 ± 0.13 | 0.0001 | |
| Ethyl-acetate | 272 ± 7 | 0.0001 | 101.2 ± 5.5 | 0.0001 |
| Ethanol | 387 ± 11 | 0.0001 | 202.3 ± 8.7 | 0.0001 |
| Aqueous | 584 ± 8 | 247 ± 12 |
**** indicate significant when p value <0.05.
