Microencapsulation || Pharma technology || by Dr. Zahoor Islam

#microencapsulation #Corematerial #Coatingmaterial
1. What is the coating material in microencapsulation?
2. Classification of coating material
3. Properties of the coating material
4. Stabilization of core materials: stabilization of vitamin A palmitate oil against oxidation and to retard degredative loses. The control of the release or availability of core materials: e.g. (sustained release of small aspirin crystals by ethylcellulose coating and release of aspirin is achieved by diffusion since the polymer is inert and pH-insensitive coating)
5. Separation of chemically reactive ingredients within a tablet or powder mixture : An example of stability enhancement accomplished by microencapsulation of incompatible admixed constituents (aspirin and chlorpheniramine maleate).