Phytochemical study and anti-radical activity of the hydroethanolic extract of the barks of Erythrophleum suaveolens (Guill. & Perr.) Brenan
Keywords:Erythrophleum suaveolens, total polyphenols, total flavonoids, Chemical screening, antioxidant activity
The article presents the phytochemical study and the evaluation of the anti- radical capacities of the extract of Erythrophleum suaveolens. After chemical screening by colorimetric methods, a dosage of total polyphenols (PPT) and total flavonoids (FVT) by UV-visible spectrometry, the anti-radical activity is evaluated by action with DPPH. The screening of the extract shows the presence of six major groups of chemical compounds: alkaloids, flavonoids, saponosides, tannins, reducing compounds, steroids, and terpenes. The quantitative analysis of flavonoids (FVT) compounds varies between 144.42 and 193.92 mgEQt/100g DM, the amount of total polyphenols varies between 1313.13 and 3075.24 mgEGA/100g DM. This high production of polyphenolic compounds is confirmed by the highly marked anti-radical activity observed on the DPPH radical for the fractions F2 (8.1 μg/ml), F3 (7.2 μg/ml) and F4 (7.2 μg/mL). This activity remains low compared to the standard compounds used, Quercetin (2.7 µg/ml), Gallic Acid (1.6 µg/ml), but justifies the use of this bark in traditional medicine.
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