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ABSTRACT
Fruits are excellent sources of essential vitamins,minerals, and are high in fibre. They play important roles in the human diet helping to protect against cancer and other diesases. The aim of this study was to compare thephytochemical constituent, antioxidant properties, totalphenoliccontentand total flavonoid content of the methanolic extracts of Chrysophyllumalbidumexocarp and endocarp,Carica papaya seed, exocarp and endocarp. The methanolic extracts of Chrysophyllumalbidumexocarp and endocarcarpand Carica papaya seed, exocarp and endocarp showed the presence of phenol, tannins, saponins, quinone, alkaloid and cardiac glycoside. Flavonoid and steroid were absent in Chrysophyllumalbidumexocarp and the endocarp,Carica papaya seed, exocarp and endocarp. The EC50 value ofChrysophyllumalbidumexocarp(0.450.032mg/ml)is found to be higher than the endocarp(0.550.061mg/ml) for DPPH radical scavenging.Carica papaya seed DPPH radical scavenging is found to be higher compared to the endocarp and exocarp. The Chrysophyllumalbidumendocarp (0.330.93mg/ml) is found to be higher than the exocarp(0.0.0119mg/ml )for H2O2radical scavenging. WhileCarica papaya seed H2O2radical scavenging is higher compared to the endocarp and exocarp.Chrysophyllumalbidumendocarp(0.460.061mg/ml) is found to be higher than the exocarp(0.500.041mg/ml)for TAC.While TAC for Carica papaya endocarp is found to be higher than seed and exocarp. The total phenolic content ofChrysophyllumalbidumexocarp (0.198mg/GAE) was found higherthan the endocarp (0.18mg/GAE).Total flavonoid content (TFC) of Carica papaya seed 0.007mg/QE) was higher than the Carica papaya endocarp (0.077mg/QE) and exocarp (0.065mg/QE)The total phenolic content ofChrysophyllumalbidumexocarp (0.091mg/QE) was found higher than the endocarp (0.065mg/QE). In conclusion, the exocarp of the fruits studied have good antioxidant activity and contain phytochemicals.
