NOVEL METHOD FOR PREPARING PURIFIED EXTRACTS OF HARPAGOPHYTUM PROCUMBENS
A method for preparing a concentrated extract of Harpagophytum procumbens , in liquid or dry form, having a harpagoside titre greater than or equal to 5%, comprises a step of purifying a crude extract of Harpagophytum procumbens in liquid form in aqueous phase by a technique of liquid-liquid extraction with an organic solvent selected from the esters.
1 . An extract of Harpagophytum procumbens , in liquid or dry form wherein the extract has a harpagoside titre from 5% to 50% w/w.
2 . The extract according to claim 1 , wherein the extract has an iridoid glucoside of harpagophytum titre of greater than 35%.
3 . The extract as defined in claim 1 wherein the harpagoside titre is equal to or greater than 35%.
4 . The extract as defined in claim 1 wherein the extract is obtained using an ester organic solvent.
5 . A pharmaceutical composition comprising an extract of Harpagophytum procumbens , in liquid or dry form wherein the extract has a harpagoside titre from 5% to 50% w/w.
6 . The pharmaceutical composition as defined in claim 5 , further comprising an acceptable carrier.
7 . A food supplement comprising an extract of Harpagophytum procumbens , in liquid or dry form wherein the extract has a harpagoside titre from 5% to 50% w/w.
8 . The food supplement as defined in claim 7 , further comprising an acceptable carrier.