Effect of Sodium Carbonate on Extraction by Aqueous Decoction of Total Polyphenols from Crushed and Whole Leaves of Combretum micranthum

Sodium bicarbonate is sometimes used to aid in the extraction of total poly- phenols. Its main effect is to increase the pH of the extraction solution. Rais- ing the pH can cause changes in the chemical structure of polyphenols. This can lead to variations in their biological properties, solubility and stability. This work studied the effect of sodium carbonate on the extraction by aqueous decoction of total polyphenols from the leaves of Combretum mi- cranthum. The content of total phenolic...