Table 4.
Antioxidant activity of the investigated extracts of M. dispermus leaves and stem barks by using DPPH scavenging assay
| Group | Equation | R2 | IC50 [μg/ml] |
|---|---|---|---|
| Control | – | – | – |
| Standard (AA) | y = 10.41x + 68.39 | R 2 = 0.980 | 0.02 |
| MDML | y = 17.27x + 18.38 | R 2 = 0.985 | 67.75 |
| MDHL | y = 29.84x − 22.87 | R 2 = 0.916 | 276.71 |
| MDTL | y = 11.79x − 5.306 | R 2 = 0.890 | 49082.26 |
| MDCL | y = 14.05x + 56.43 | R 2 = 0.944 | 0.35 |
| MDEL | y = 19.07x + 32.36 | R 2 = 0.892 | 8.41 |
| MDAL | y = 8.249x + 25.96 | R 2 = 0.951 | 820.90 |
| MDMS | y = 24.00x − 2.814 | R 2 = 0.857 | 158.70 |
AA – ascorbic acid, MDML – crude methanol extract of M. dispermus leaves, MDHL – n -hexane fraction of crude methanol extract of M. dispermus leaves, MDTL – carbon tetrachloride fraction of crude methanol extract of M. dispermus leaves, MDCL – chloroform fraction of crude methanol extract of M. dispermus leaves, MDEL – ethyl acetate fraction of crude methanol extract of M. dispermus leaves, MDAL – aqueous fraction of crude methanol extract of M. dispermus leaves, MDMS – crude methanol extract of M. dispermus stem bark