Removing and recovering plant polyphenols

Details Removing and recovering plant polyphenols Removing and recovering plant polyphenols

C - Chemistry, Metallurgy

07

H

99/53, 204/80, 2

C07H 13/08 (2006.01) A23F 3/20 (2006.01) A23F 5/18 (2006.01) A23L 1/275 (2006.01) A23L 2/78 (2006.01) B01D 15/00 (2006.01) B01D 67/00 (2006.01) B01D 71/56 (2006.01) C07H 3/02 (2006.01) C12H 1/056 (2006.01)

Patent

CA 1318319

ABSTRACT Polyphenolic substances such as food dyes, tannins, fruit juices and wine colourings are removed from a solution by adsorption onto a regeneratable adsorbent polyamide of extended surface and controlled porosity. The surface chemistry of the polyamide may be modified by a glutaraldehyde/resorcinol treatment. The polyphenolic substances are recovered by elution with water or other protonic solvent.

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