Evaluating Antioxidants Present in Grapefruit Peel Phytochemicals Using Blending Extraction Method

Abstract

Grapefruit peels, often discarded as waste, have gained attention for their potential as a source of natural antioxidants, addressing the growing demand for sustainable and cost-effective alternatives to synthetic compounds. Oxidative stress-related disorders continue to pose significant health challenges, emphasizing the need for natural antioxidant sources. This study investigates the antioxidant properties of grapefruit peel phytochemicals using the blending extraction method. Fresh grapefruits were purchased from Minna main market, Niger State Nigeria and stored under controlled conditions at room temperature before further analysis. The extracted phytochemicals were analyzed for their antioxidant activity and phytochemical composition. The findings reveal a concentration-dependent increase in the extract's ability to inhibit lipid peroxidation and scavenge DPPH free radicals, highlighting its strong antioxidant potential. Phytochemical analysis indicates a significant presence of phenolic compounds, while alkaloids and flavonoids were detected in lower quantities. Notably, saponins were found in higher concentrations among the analyzed phytochemicals. These results emphasize the potential of grapefruit peel extract as a rich source of natural antioxidants with promising applications in health, nutrition, and functional food development.