Preliminary phytochemical screening and antioxidant activity of leave extract of <i>Albizia chevalieri</i> harms (Leguminoseae-Mimosoideae)

Abstract

Antioxidant evaluation of Albizia chevalieri used in Northern Nigerian traditional medicine, was carried out using the free radical scavenging activity of the 1, 1-diphenyl-2-picrylhydrazyl radical (DPPH), total phenolics content and reducing power assay on the methanol leave extract. The results of the DPPH scavenging activity study indicate a concentration dependent antioxidant activity with 59.588, 68.477, 77.240, 85.925 and 94.732% of various concentrations of 10, 25, 50, 125 and 250μg/ml of the extract respectively. The total phenolic content was found to be 60.20 mg/g Gallic acid equivalent (GAE) and the reducing power of 0.071±0.03nm was obtained. The DPPH scavenging activity of the extract was found to be promising. There is no significant difference (p