Xanthophyll microcapsule with high stability and antioxidant activity and preparation method thereof

The invention belongs to the technical field of microcapsule preparation, and discloses a lutein microcapsule with high stability and antioxidant activity and a preparation method thereof. The preparation method comprises the following steps: dissolving protein, adding a marigold polyphenol solution and a xanthophyll solution, fully stirring for a certain time, adding a polysaccharide solution, adjusting the pH value, magnetically stirring for 1-2 hours, and freeze-drying to obtain xanthophyll microcapsule powder. The lutein microcapsule is prepared from the marigold polyphenol compound protein and polysaccharide, the stability of lutein is improved, the antioxidant activity of lutein is enhanced, and the prepared marigold polyphenol compound lutein microcapsule has high application value in the fields of food, medicine and the like. 本发明属于微胶囊制备技术领域，本发明公开了一种高稳定性及抗氧化活性的叶黄素微胶囊及其制备方法。本发明通过对蛋白进行溶解，然后加入万寿菊多酚溶液及叶黄素溶液，充分搅拌一定时间后，加入多糖类溶液，调节pH，磁力搅拌1～2h，冷冻干燥获得叶黄素微胶囊粉末。本发明通过万寿菊多酚复合蛋白和多糖制备叶黄素微胶囊，不仅改善了叶黄素的稳定性，同时增强了叶黄素的抗氧化活性