The ethanolic extract of Ficus racemosa exhibited
higher DPPH radical scavenging activity (EC50=
4.87µg/ml) than BHT which is the standard (EC50=
12.75 µg/ml). The Tiliacora triandra and
Harrisonia perforata showed strong antioxidant
activity(EC50= 15.38, 16.91µg/ml, respectively).
The results of Benchalokawichian remedy and
Capparis micracantha showed antioxidant activity
(EC50=40.93, 61.37µg/ml, respectively) whereas
Clerodendrum petasites showed no antioxidant
activity (EC50>100 µg/ml) (Figure 3).