Vol. 6, Issue 1, Part B (2020)

Abstract
The aim of this study was to find the antioxidant potential of various solvent extracts of Pteris longifolia was determined by using DPPH free radical scavenging method along with screening of secondary metabolites. The various extracts showed significant antioxidant potential against DPPH free radicals. The antioxidant activity of the sample was comparable with standard ascorbic acid. Phytochemical screening of fern confirms various secondary metabolites which played important role for controlling the plant and animal disease. The whole extract of Pteris longifolia was explored for its versatile phytochemical constituents like flavonoids, tannins, saponins, alkaloids, steroids, phenols and terpenoids (Table 1). The results of this study allow that the plant extracts have huge amount of secondary metabolites and high scavenging power of free radicles.