Published Paper Details:

Citrus sinensis, which is commonly known as sweet orange, is a powerful natural antioxidant that intensify body immune system. It is also known to be the source of various phytochemicals. This present study was aimed for the preliminary phytochemical evaluation and antioxidant activity of C.sinensis pulp. Phytochemicals were analyzed both qualitatively and quantitatively. The qualitative analysis of C.sinensis revealed the presence of alkaloids, flavonoids, tannins, polyphenols and saponins. The quantitative analysis of phytochemicals in methanolic extract revealed that the presence of polyphenols (37.79) were maximum, followed by tannins (21.6), then flavonoid (9.6) and saponin (9.5). Polyphenols were dominant followed by tannins. Alkaloids were present in least amount. The antioxidant activity were assessed by DPPH radical scavenging assay. Six varying concentrations (0, 5, 10, 15, 20 and 25 ppm) of methanol solvent extract of orange demonstrated different percentage of inhibition. Appealingly the scavenging activity of extract increased in a concentration dependent manner. The 25 ppm extract showed the best antioxidant activity in DPPH that is 24.63 %.