New Dual Walled Capsules Produced by a Multiple Emulsion System
Studies on Capsules Part II
1981 Volume 28 Issue 3 Pages 152-156
Details
1981 Volume 28 Issue 3 Pages 152-156
A kind of dual walled capsule for encapsulation of oleoresins or essential oils was prepared by once spray drying process, and its characteristics was investigated. The dual walled capsules consist of some water-soluble parts in which oleoresins and essential oils are encapsulated with gum arabic and dextrin, and some water-insoluble parts encapsulated with fats and oils. These capsules showed a different dissolution profile, compared with single walled capsules and dry soluble types, A portion of oleoreSin holded in the dual walled capsules was dissolved at low temperature and the rest of it at high temperature. Moreover, when the dual walled capsules were stored, the loss of oleoresin in these capsules was lesser than that observed in single walled capsules and dry soluble types.
