Purification procedure of diosmin.

Purification process of the diosmin, characterized in that: - in a first step, in an aqueous medium: reacting diosmin to be purified with a mineral base to transform diosmin soluble phenate in the reaction medium zinc powder is added, - in a second step, the reaction mixture is filtered, - in a third step, the filtrate collected in the second stage to precipitate the diosmin that subsequently recovered in the usual manner acidified.