Patent ID: 6288130
Filing Date: 2001-09-11
Classification: A23J,A61K,A61Q,C07F

Abstract:
A method of producing the oil-free glycerophospholipid formulation comprising:(a) homogeneously mixing one or more oil-containing glycerophospholipids with one or more anhydrous, liquid polyol compounds in a molar ratio of glycerophospholipid to polyol compound of 1:0.01 to 1, and optionally C1-C4 mono-alcohol, and(b) subjecting the mixture obtained in step (a) to an extraction process during which the any oil and C1-C4 mono-alcohol is removed; andwherein in step (b), the mixture is extracted with an extracting agent containing at least one of the group consisting of propane and butane at a pressure between 10 and 100 bar and temperatures from 30 to 100.degree. C. in a rectifying column having a top and bottom, and separating the mixture into a liquid phase containing oil, and a melt containing the glycerophospholipid, polyol and optionally 0 to 3 wt % oil by weight of the final formulation; and discharging the liquid phase as top product and the melt as bottom product, the oil-free glycerophospholipid formulation being obtained from the melt.