Process for the preparation of anthocyanin-containing products

摘要

A process for the production of an anthocyanin-containing product, said process comprising: loading an aqueous anthocyanin solution onto a cation exchange resin; flushing the resin with water; applying an acidic methanol or ethanol eluant to said resin until anthocyanin begins to elute therefrom whereafter applying a non-acidic methanol or ethanol eluant to said resin; collecting anthocyanin-containing eluate from said resin; evaporating off methanol or ethanol from said eluate adding water and if necessary an anticoagulant to the eluate to produce an aqueous anthocyanin solution, preferably a solution containing at least two anthocyanins; spray-drying said solution and optionally coating the spray dried product.