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Extraction of Plant-based Capsules for Microencapsulation Applications
Published on: November 9, 2016
Three-ply walled w/o/w microcapsules formed by a multiple emulsion technique
The Journal of Pharmacy and Pharmacology
|August 1, 1982
Summary
Researchers developed a novel microencapsulation technique using ethyl cellulose and acacia polymers. This method efficiently creates microcapsules from multiple emulsion drops, yielding a free-flowing powder.
Area of Science:
- Polymer Science
- Materials Science
- Chemical Engineering
Background:
- Interfacial rheological studies revealed a rigid bipolymer film at polymer solution interfaces.
- This observation inspired the formation of spherical bodies from emulsions.
Purpose of the Study:
- To describe a new method for creating microcapsules.
- To investigate the formation of ethyl cellulose/acacia microcapsules using a specific emulsion technique.
Main Methods:
- Formation of a water-in-oil-in-water (w/o/w) emulsion using aqueous and non-aqueous polymer solutions.
- Removal of the organic solvent (ethyl acetate) from the emulsion drops to induce microcapsule formation.
Main Results:
- Successfully formed ethyl cellulose/acacia microcapsules.
- The resulting microcapsules were obtained as a free-flowing powder.
Conclusions:
- A novel and efficient method for microencapsulation has been established.
- The technique allows for the production of ethyl cellulose/acacia microcapsules suitable for powder applications.
