In vitro Antioxidant Activities of Ethanol, Ethyl Acetate and n-Hexane Extracts of Mangifera indica Leaves

Yunusa Ibrahim, Musa Busari, Ruqayyah Yusuf, Rabiat Hamzah


Mangifera indica leaves have been in use in folk medicine since ancient time, for the treatment and/or management of numerous health complications. In this study, total phenols and flavonoids contents, as well as in vitro antioxidant activities of ethanol, ethyl acetate and n-hexane extracts of M. indica leaves were determined and compared. The in vitro antioxidant activities were determined using 2, 2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging, ferric reducing antioxidant power, and inhibition of lipid peroxidation assays, respectively. The total phenols were found to be present in the descending order of; ethanol extract > ethyl acetate extract > n-hexane extract, while flavonoids were observed in the descending order of; n-hexane extract > ethanol extract > ethyl acetate extract. The maximum percentage DPPH radical scavenged (at 100 μg/mL), ferric reducing power (at 400 μg/mL) and inhibitory activity on lipid peroxidation (at 400 μg/mL) exhibited by the ethanol extract (94.40%, 88.73%, and 84.05%, respectively) were significantly greater (p < 0.05) than the ethyl acetate extract (79.46%, 68.74%, and 79.73%, respectively at 400 μg/mL) as well as n-hexane extract (45.30%, 58.79%, and 67.78%, respectively at 100 and 400 μg/mL). It can be concluded that the extracts possess anti-oxidant activities and may be employed in the treatment and/or management of oxidative stress related diseases.

Keywords: Mangifera indica; phenolics; flavonoids; antioxidant; DPPH radical;


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