Total polyphenols content and the antiradical activity leaves extracts of Combretum micranthum G. don harvested from different regions of Senegal (Diass, Sandiara and Essyl)

This study examines the total polyphenol content and the antiradical properties of extract from Combretum micranthum leaves harvested in Diass, Sandiara in west-central Senegal and in Essyl in the south, during the rainy season versus the after-rainy season. The total polyphenol content expressed in tannic acid equivalent per 100 g of dry matter during the rainy season and the after-rainy season are respectively: Sandiara: 8.5 ± 1.31% vs 10.44 ± 2.19%; Essyl: 10.53 ± 4.6% vs 17.17 ± 0.73%; Diass: 13.57 ± 1.7% vs 16.37 ± 0.69%. The IC50 of Diass, Sandiara and Essyl leaf extracts are in rainy versus after-season periods respectively 117.83 ± 8.93 μg / ml vs 59.5 ± 4.13 μg / ml; 155 ± 4.6 μg / ml vs 119.9 ± 10.78 μl / ml; 150.5 ± 3.36 μg/ml vs 136.17 ± 6.54 μg / ml. The antiradical power is in favor of the after-rain season.