Method for manufacturing fat-soluble phytosterol or phytostanol ester of unsaturated fatty acid

摘要

The present invention provides a method for manufacturing fat-soluble phytosterol or phytostanol ester of unsaturated fatty acid for inhibiting the absorption of cholesterol and foodstuffs containing the same. The method for manufacturing fat-soluble phytosterol or phytostanol ester of unsaturated fatty acid comprises the steps of: esterification of phytosterol or phytostanol with unsaturated fatty acid by dissolving them in a nonpolar organic solvent with a basic catalyst and adding a carboxyl group activating agent dissolved in a nonpolar organic solvent; and, precipitation of the esterified product in methanol or a mixture of methanol and acetone, discarding the remaining solvent, and drying the product under a reduced pressure.