RADICAL SCAVENGING PROPERTIES OF ETHYL ACETATE FRACTION OF TRIUMFETTA RHOMBOIDEA LEAF
Abstract
Triumfetta rhomboidea, a pantropical plant from the Malvaceae family, is traditionally used for treating ailments like diarrhea, tumors, and diabetes due to its rich phytochemical profile including flavonoids, phenolic, and tannins. This study investigated the antioxidant properties of its ethyl acetate fraction of Triumfelta rhomboidea (EAFTR) leaf. Leaves were collected from Igbokoda, Nigeria, authenticated (OAUSTECH/H/74), air-dried, powdered, for extraction. Obtained aqueous fraction was fractionation with varying solvents in the order of non polar to polar. Antioxidant activity was evaluated via DPPH, ABTS, and FRAP assays, with ascorbic acid (AA) as the standard. Results showed concentration-dependent radical scavenging in DPPH and ABTS assays, with EAFTR exhibiting moderate-to-strong inhibition, though lower than AA. FRAP increases with concentration, indicating electron-donating capacity. These findings align with prior studies on related species, attributing activity to polyphenols like quercetin and catechin, which neutralize free radicals and mitigate lipid peroxidation.EAFTR demonstrates significant antioxidant potential, supporting traditional uses and positioning it as a natural alternative to synthetic antioxidants.
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