The fundamental mechanism underlying a number of human neurodegenerative disorders, diabetes, inflammation, viral infections, autoimmune pathologies and digestive system disorders due to free radicals or reactive oxygen species (ROS). World is blessed with mammoth biodiversity resources, but overwhelmed with several diseases, including those with ROS as the etiological factor. In the present study, the antioxidant activity, total phenolic and flavonoids content of different parts of the plant F. deltoidea, collected from three different areas in Malaysia has been evaluated. Plant extract exhibited strong antioxidant activity. Methanolic extract of F. deltoidea possess more antioxidant principles than aqueous extracts. Among the three sources, F. deltoidea 1 (FD1) possess higher antioxidant activity than the others [FD2 and FD3]. In the present study, we discovered that fruits of F. deltoidea contain more antioxidant principles and free radical scavenging activity and the effects are significantly comparable with standard antioxidants
