Purification process for improving total yield of...

Details Purification process for improving total yield of... Purification process for improving total yield of...

C - Chemistry, Metallurgy

09

B

C09B 61/00 (2006.01) A23L 1/275 (2006.01) A61K 35/78 (2000.01)

Patent

CA 2418816

The present invention pertains to a process of improving the total yield of curcuminoids from curcuminoid-containing material. More specifically, there is provided a process wherein a second residue, previously considered a waste resulting from a crystallisation step of a curcuminoid-containing phase, is made useful by improving the colouring properties of this second residue by extraction with hexane and/or methanol at ambient temperature. The process improves the total yield of curcuminoids by 30-40 %.

L'invention concerne un procédé d'amélioration du rendement total de curcuminoïdes, à partir d'une matière contenant ceux-ci et elle concerne notamment un procédé consistant à rendre utilisable un second résidu, considéré précédemment comme un déchet résultant d'une étape de cristallisation d'une phase contenant un curcuminoïde, par amélioration des propriétés colorantes de ce second résidu au moyen d'une extraction à température ambiante, à l'aide d'hexane et/ou de méthanol. Ce procédé améliore le rendement total des curcuminoïdes de 30 à 40 %.

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