Process for the formation and isolation of carotenoid crystals

Details Process for the formation and isolation of carotenoid crystals Process for the formation and isolation of carotenoid crystals

C - Chemistry, Metallurgy

07

C

C07C 403/24 (2006.01) C30B 1/00 (2006.01)

Patent

CA 2487013

A process for the production of carotenoids crystals from a carotenoid- containing plant oleoresin which process comprises (a) a first step of introducing the oleoresin to an organic solvent, an alcohol and a base under reflux temperature of the organic solvent to form a saponification reaction mixture; (b) maintaining said saponification reaction mixture for a period of time sufficient to complete the saponification reaction, thereby producing a saponified product; (c) allowing the resulting saponifiied product to separate into two phases comprising an organic phase and an aqueous phase; (d) separating said phases and extracting the extracting the aqueous phase; (e) distilling said organic phase to obtain the carotenoid crystals.

L'invention concerne un procédé de production de cristaux de caroténoïdes provenant d'une oléorésine végétale contenant un caroténoïde. Ledit procédé consiste a) à mélanger l'oléorésine avec un solvant organique, un alcool et une base à une température de reflux du solvant organique afin de former un mélange de réaction de saponification; b) à conserver le mélange de réaction de saponification pendant une durée suffisante pour effectuer une réaction de saponification, ce qui permet de produire un produit saponifié; c) à séparer ledit produit saponifié résultant en deux phases comprenant une phase organique et une phase aqueuse; d) à séparer lesdites phases et à extraire la phase aqueuse; et e) à distiller la phase organique pour obtenir des caroténoïdes cristallisés.

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