Preparation and Stability of Vitamin B12 Microcapsule Powder
The vitamin B12 microcapsule powder was constructed with sodium starch octenyl succinate as wall material,the preparation conditions were optimized by single factor test,and the stability of vitamin B12 solid microcapsule powder was investigated by storage experiment.The results showed that the optimal conditions for the preparation of vitamin B12 microcapsule powder were 80%sodium starch octenyl succinate,pH 5~6 of the wall solution,shear time of 11 min,homogenization pressure of 30 MPa,and the content of the active ingredients of the 1%vitamin B12 microcapsule powder was maintained at more than 0.97%under these conditions.There was no significant change in the vitamin B12 content during 6 months of storage,indicating that the vitamin B12 microencapsulated powder has good stability.