Processes for preparing sterol esters
AssigneeCognis Corporation
InventorsNorman Milstein, Manfred Biermann, Peter Leidl, Rainer von Kries
Life of this patent
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Abstract
A food additive useful for lowering serum cholesterol in humans contains a sterol or stanol ester of a fatty acid or a dicarboxylic acid ester of a sterol or stanol made by reacting a sterol, stanol and a carboxylic acid in the presence of an effective amount of a catalyst selected from the group consisting of calcium oxide, calcium hydroxide, a calcium salt of a carboxylic acid, magnesium hydroxide and combinations thereof described herein below.
Claims19
A process for preparing an ester, said process comprising reacting at least one first reactant selected from the group consisting of sterols, stanols, and combinations thereof with at least one second reactant selected from the group consisting of carboxylic acids and carboxylic acid esters in the presence of a catalytically effective amount of a catalyst selected from the group consisting of calcium oxide, calcium hydroxide, a calcium salt of a carboxylic acid, magnesium hydroxide and combinations thereof.
A process which comprises reacting β-sitostanol with a carboxylic acid ester in the presence of an effective amount of calcium oxide.
A process for making a food additive composition, said process comprising:
- (a) providing an edible solubilizing agent;
- (b) providing an effective amount of a suitable dispersant;
- (c) providing an ester prepared by reacting at least one first reactant selected from the group consisting of sterols, stanols, and combinations thereof with at least one second reactant selected from the group consisting of carboxylic acids and carboxylic acid esters in the presence of a catalytically effective amount of a catalyst selected from the group consisting of calcium oxide, calcium hydroxide, a calcium salt of a carboxylic acid, magnesium hydroxide and combinations thereof;
- and
- (d) combining the edible solubilizing agent, the suitable dispersant and the ester.
Dependencies are inferred from the claim text.