Process for extracting polar phytochemicals

Details Process for extracting polar phytochemicals Process for extracting polar phytochemicals

B - Operations, Transporting

01

D

B01D 15/08 (2006.01) B01D 15/32 (2006.01) B01D 15/36 (2006.01) G01N 30/02 (2006.01)

Patent

CA 2478155

A process comprises the steps of : providing a natural (e.g. plant) material; extracting a first sample of the material with a polar solvent to produce a polar extract and a non-polar residue; subjecting the polar extract to ion- exchange chromatography to produce an extract enriched in ionic-compounds and a non-ionic residue; and chromatographically fractionating the enriched extract to yield one or more polar fractions comprising one or more ionic (phyto)chemical(s).

L'invention porte sur un procédé comportant les étapes suivantes: (a) acquisition d'un matériau naturel (par exemple végétal); (b) extraction du matériau à l'aide d'un solvant polaire d'un premier échantillon pour obtenir un extrait polaire et un résidu non polaire; (c) soumission de l'extrait polaire à une chromatographie par échange d'ions de manière à obtenir un extrait enrichi en composés ioniques et un résidu non ionique; et (d) fractionnement par chromatographie de l'extrait enrichi pour obtenir une ou plusieurs fractions polaires comprenant un ou plusieurs produits phytochimiques ioniques.

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