10.22376/ijpbs.2019.10.1.p1-12 Volume 5 Issue 2 2014 (April - June) The antioxidant activity of leaf, unripe and ripe fruits of Lantana camara L. were determined using H2O2 radical scavenging activity and Ferric Reducing antioxidant power (FRAP) assay. Ethanol, methanol, ethyl acetate and water extracts prepared from dry leaf powder and fresh fruits of both unripe and ripe fruits were used to find out the antioxidant activity. All the four extracts of leaf, unripe and ripe fruits showed considerable antioxidant effect. Water extract of powdered leaf showed a maximum activity of 94.81% where as aqueous extract of unripe fruit showed the least of 0.05% in FRAP activity . In H2O2 radical scavenging activity water extract of unripe showed the highest activity of 14.53% and methanol, ethyl acetate and water extracts of leaf powder showed the least activity of 3.05%. As the leaf, unripe and ripe fruits of Lantana camara have antioxidant potential they can be studied from pharmaceutical and nutraceutical aspects.  lessThan br / greaterThan S LAYAVARJITHA AND D KADAMBAN Antioxidant activity, FRAP, H2O2, Lantana camara 06-11