Process for treatment of anthocyane extracts
AssigneeS.E.F.C.A.L. Societe d'Etudes, de Fabrication et de Commercialisation de Colorants Alimentaires
InventorsPierre Combe, Jean Ladet
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Abstract
A method of treatment of an anthocyanic extract, characterized in that it mainly comprises an ultrafiltration stage which consists in separating from said extract by ultrafiltration, on the one hand a liquid filtrate which passes through an ultrafilter membrane and on the other hand a first concentrate containing more condensed forms of anthocyanins, and a reverse osmosis stage which consists in separating from said filtrate by reverse osmosis, on the one hand a diffusate which passes through a reverse osmosis membrane and on the other hand a second concentrate which contains less condensed forms of anthocyanins.
Claims12
A method of treatment of an anthocyanic extract consisting essentially of an ultrafiltration stage which consists essentially of separating from said extract by ultrafiltration a liquid filtrate which passes through an ultrafilter membrane and a first concentrate containing more condensed forms of anthocyanins, which first concentrate is collected as a first dryable coloring agent, and a reverse osmosis stage consisting essentially of separating from said liquid filtrate by reverse osmosis a diffusate which passes through a reverse osmosis membrane and a second concentrate which contains less condensed forms of anthocyanins and collecting said second concentrate as a second coloring agent.
Dependencies are inferred from the claim text.