| abstract |
The invention provides a preparation method of continuous vitamin A microcapsules: under nitrogen protection, vitamin A and an antioxidant are prepared into vitamin A molten oil containing antioxidants in proportion; protective colloid, carbohydrates, The cross-linking agent is formulated into a protective colloid aqueous solution; the vitamin A molten oil and the protective colloid aqueous solution are respectively sent into the static mixer, and the high-pressure homogenizing pump is connected to the outlet of the static mixer for circulation to obtain a certain solid content of vitamin A emulsion ; Granulate the vitamin A emulsion, dry and cross-link to obtain vitamin A microcapsules. Using a static mixer and a high-pressure homogenizing pump for continuous emulsification, on the one hand, the vitamin A particles in the emulsion are fully mixed and uniformly dispersed, which avoids the production of large crystals with low bioavailability, and on the other hand, avoids the long-term shearing of vitamin A in the emulsion. The loss of cut emulsification and the investment energy consumption of larger equipment. |