The invention discloses a preparation method of microcapsules composited by
evening primrose oil and rosehip oil. The preparation method comprises the steps of picking the
evening primrose oil, the rosehip oil and
lecithin, conducting vacuum melting, and treating the ingredients as core materials; picking
cyclodextrin, Arabic gum and
cane sugar, conducting hydration with water, and treating the ingredients as liquid wall materials; mixing the core materials with the liquid wall materials, conducting sufficient emulsification, and obtaining
emulsion; making the
emulsion be subjected to spray freeze-
drying, and obtaining the microcapsules composited by the
evening primrose oil and the rosehip oil. According to the preparation method, the spray freeze-
drying method is adopted, the
drying rate is high, the
drying time is short, the production process is simple and flexible, the operation and control are convenient to conduct, and the preparation method is suitable for
mass production. The prepared microcapsules are high in
oil content, loss of gamma-
linolenic acid is reduced to the greatest extent, and oxidative deterioration is not prone to occurring; the microcapsules are good in taste, easy to digest and absorb and high in
biological value of functional components; the microcapsules can be eaten directly and can also be prepared into drugs, health products, food additives and
cosmetics.