Dpph Scavenging Activities of Some Fruit Juice Extracts Consumed Within Eket Metropolis

Student: Ofon-ime Okon Udo (Project, 2025)
Department of Biochemistry
Heritage Polytechnic, Ikot Udota, Akwa Ibom State

Abstract

This study evaluated the antioxidant activity of juice extracts from four different fruits: lime (Citrus aurantiifolia), avocado (Persea americana), soursop (Annona muricata), and tangerine (Citrus reticulata)—using the 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging assay. Ascorbic acid was used as the standard antioxidant control. The analysis was performed at three concentrations (10, 50, and 100 µg/mL), and the IC₅₀ values (the concentration required to inhibit 50% of DPPH radicals) were determined for each extract. The study concludes that lime is a rich source of natural antioxidants and recommends its increased dietary use to combat oxidative stress and related health conditions.

Keywords
DPPH SCAVENGING FRUIT JUICE EXTRACTS EKET METROPOLIS SOURSOP TANGERINE LIME AVOCADO
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