دراسة الفعالية المضادة للأكسدة ملستخلصات أوراق المورينغا

Abstract

The aim of this study is to estimate the antioxidant activity of Moringa oleifera Lam leaf extracts obtained from Oum Touyour, province El-Mghair .

After that, several extracts were prepared with the aim of Screening phytochimique in the Moringa oleifera, which showed that Moringa leaves contain a group of secondary metabolites represented in flavonoids, alkaloids, saponins, tannins, sterols, triterpenes and reference compounds.

Using different polar solvents, phenols were extracted, where the highest yield was recorded for the methanolic extract, 2.10%, and from it the amount of phenols for the extracts was estimated using Folin-Ciocalteu method, where the largest amount of phenols was recorded in the ethyl acetate extract with

284,40±0, 87a µg AG E/ mg Ex. As for the estimation of the amount of flavonoids, it was done using the Aluminum chloride method AlCl3, where the ethyl acetate extract contained the largest amount of (182.74±1,35µg Qu E/mg Ex) .

To estimate the antioxidant activity, the activity was studied using DPPH free radical, and it was estimated that the greatest activity in inhibiting free radical DPPH was found in ethyl acetate extract IC50=72,50±4.62µg/ml.