【摘要】 目的:为顺应市场需求开发高浓度PUFA油脂微胶囊。方法:以β-环糊精/明胶为复合壁材，高含量多不饱和脂肪酸油脂葵花籽油为芯材，采用喷雾干燥法制备葵花籽油粉末微胶囊，并通过单因素试验和响应面试验优化油脂微胶囊制备工艺参数。结果:油脂微胶囊的最佳工艺条件为固形物含量25.2%、复合壁材配比(m_β-环糊精∶m_明胶)6.7∶1、乳化剂用量1%、芯壁材配比(m_葵花籽油∶m_复合壁材)1∶2,在该工艺条件下得到的油脂微胶囊颗粒完整，粒径大小均匀，包埋率达94.33%,其中多不饱和脂肪酸含量达21.73%。结论:该制备方法可行，能够实现高浓度多不饱和脂肪酸油脂微胶囊的制备。更多还原

【Abstract】 Objective: To meet the market demand, high concentration PUFA oil microcapsules were developed. Methods: The microencapsulated oil was prepared by spray drying method with β-cyclodextrin/gelatin as a composite wall material and high content polyunsaturated fatty acid oil sunflower seed oil as a core material, and the preparation process parameters of oil microcapsules were optimized by single factor experiment and response surface experiment. Results: The best technological conditions of oil microcapsule were solid content of 25.2%, and the mass ratio of composite wall material β-cyclodextrin: gelatin was 6.7∶1. The dosage of emulsifier was 1%, and the mass ratio of core wall material was 1∶2. Under this condition, the prepared oil microcapsule particles were round. The particle size was uniform, and the embedding rate was 94.33%. The content of polyunsaturated fatty acid was 21.73%. Conclusion: This preparation method is feasible and can be used to prepare high concentration polyunsaturated fatty acid oil microcapsules.更多还原