PRODUCTION OF CONJUGATED LINOLEIC ACID USING EDIBLE OIL

摘要

PURPOSE: A process of preparing pure conjugated linoleic acid(CLC) by reacting vegetable oil rich in linoleic acid or linoleic acid in fatty acid state as a substrate under atmospheric pressure or under pressure is provided. By feeding of the CLC composition to livestock in a fatty acid state, animal products having a high content of functional CLC is produced. CONSTITUTION: Fat having a linoleic acid content of 40% or more is dissolved in ethylene glycol and reacted with alkali such as caustic soda or soda ash at 150 to 190deg.C for 30 min to 2.5 hr at 5 to 250psi in 1,000 to 500ml/min nitrogen gas and 30 to 15ml/min hydrogen gas. The reactant is separated by adjusting the pH of the solution to 4.5 to 5.0 and then esterificated. A solution of sulfuric anhydride and ethanol is added to conjugated linoleic acid and then reacted. Oxides contained in the solution are extracted by use of supercritical carbon dioxide.