Process for the preparation of extracts having high content...

Details Process for the preparation of extracts having high content... Process for the preparation of extracts having high content...

C - Chemistry, Metallurgy

07

H

167/291

C07H 17/065 (2006.01)

Patent

CA 2022962

A process for the preparation of extracts with high content in anthocyanosides consists in treating plants, parts of plants or crude extracts with bisulfate ions to give anthocyanoside-bisulfate adducts. Said adducts are then-eluted on non-ionogenic resins at pH 5-6 and the obtained solution is extracted with polar organic solvents immiscible in water. The obtained extracts have a constant and standardized composition in anthocyanosides.

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