Vitamin A microcapsule and preparation method and applications thereof

The invention belongs to the field of vitamins, and discloses a vitamin A microcapsule and a preparation method and applications thereof. The preparation method of the vitamin A microcapsule comprisesthe following steps: stirring palmitate ascorbate, carnosic acid, choline and/or choline derivatives and optional grease at 45-60 DEG C for at least 5 minutes, then adding vitamin A, and performing stirring until the vitamin A dissolves to obtain a core material; dissolving a wall material in water, wherein the wall material is a mixture of a protein wall material and a carbohydrate wall material, and the isoelectric point of the gelatin is 4.5-5.6 when the protein wall material contains gelatin so as to obtain a wall material aqueous solution; and mixing and emulsifying the core material andthe wall material aqueous solution to form vitamin A emulsion, wherein the pH value of the vitamin A emulsion is controlled to be 6.0-7.5, and the particle diameter D50 of the oil drop is controlledto be 0.8-1.2 microns, and