ANTIOXIDANT ACTIVITY AND PHYTOCHEMICAL SCREENING OF CARICA PAPAYA,MANGIFERA INDICA AND EUCALYPTUS SPECIE LEAVES

Student: Fatima Ali Sani
Supervisor: Prof Salihu Abdullahi Kiyawa
HOD: Prof Salihu Abdullahi Kiyawa
Department of Chemistry
Science
Northwest University, Kano, Kano State

Abstract

This study investigates the antioxidant activity and phytochemical composition of Carica papaya, Mangifera indica, and Eucalyptus leaves. These plants are widely known for their medicinal properties and are commonly used in traditional medicine across various cultures. The phytochemical screening of the leaf extracts revealed the presence of bioactive compounds such as flavonoids, tannins, saponins, alkaloids, phenols, and glycosides, which are responsible for various pharmacological effects. Antioxidant activity was evaluated using standard methods, including the DPPH (2,2- diphenyl-1-picrylhydrazyl) free radical scavenging assay. Results indicated that all three plant extracts exhibited significant antioxidant potential, with Mangifera indica showing the highest activity, followed by Carica papaya and Eucalyptus. The findings suggest that these leaves possess strong antioxidant properties and a rich phytochemical profile, supporting their potential use in developing natural therapeutic agents and nutraceuticals. Further studies are recommended to isolate and characterize individual bioactive compounds responsible for the observed effects.

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