TABLE 1.
QUALITATIVE EVALUATION OF ANTIOXIDANT ACTIVITY OF PLANTS EXTRACTS USING 0.2% DPPH ETHANOLIC SOLUTION AS REVELATOR
| Medicinal plants | Parts of plants used | Extracts | Quantities (g) | Result of TLC Spraying with 0.2% DPPH solution |
|---|---|---|---|---|
| V. heterophylla | Leaves | HE | 11.43 | - |
| EA | 16.18 | + | ||
| MeOH | 16.06 | ++++ | ||
| Twigs | HE | 7.18 | - | |
| EA | 10.46 | + | ||
| MeOH | 19.29 | nd | ||
| P. mannii | Stem bark | CHCl3 | 17 | ++ |
| EA | 38 | ++++ | ||
| R. heudelotii | Leaves | EA | 56 | - |
| MeOH/CH2Cl2 | 58 | + |
++++
strong free radical scavenging properties
++
mild radical scavenging properties
+
weak free radical scavenging properties
-
no bleaching of the plate spraying with DPPH solution, n.d. not evaluated, HE n-hexane extract, EA ethyl acetate extract, CHCl3 chloroform extract, MeOH methanol extract while MeOH/CH2Cl2 is the methanol/dichloromethane (1+1) extract