| 摘要 |
PURPOSE: A method of preparing liquid-crystal microcapsules of 10 microns or less for improving the stabilization and functionality of an unstable functional material using an emulsion composition is provided. Therefore, the microcapsules can be effectively used for encapsulation of high concentration of physiologically active substances that are unstable and are useful for various formulations of foods, medicines, commodities or the like. CONSTITUTION: An oil phase containing 48 to 67% by weight of an oil base, 2 to 10% by weight of one or more liquid-crystal film forming agents and 10 to 15% by weight of a surfactant is agitated with a water phase containing 10 to 15% by weight of an aqueous polymer material and purified water at 55 to 60deg.C at a speed of 2,000 to 3,000rpm, cooled to 40 to 45 deg.C, agitated with 1 to 5% by weight of a thickener and 1 to 25% by weight of an additive at a speed of 20 to 30rpm and then cooled to 20 to 25deg.C. The oil phase is prepared by emulsion-coating the oil base containing highly unsaturated fatty acid with an emulsifier in the presence of N2 gas three times.
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