Define microencapsulation.What are its advantages and different techniques involved in it?

Define microencapsulation.What are its advantages and different techniques involved in it?
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1 Answer

Answer :

Microencapsulation : it is the technique in which a thin coating is applied on the particles of solids, liquids, resulting in the formation of micro-capsules ranging from micron to 5000 micron

Advantages:

1) It is useful to mask the taste of bitter drugs.

2) used in the formation of sustained release dosage form

3) used in the separation of incompatible materials

4) Used for the protection of drugs against moisture, oxygen etc.

5) used in the conversion of liquid to Solid

Techniques:

Microencapsulation is generally carried out by Coacervation/ Phase inversion technique.

Commonly used techniques are as mentioned below:

1) Fan Coating 2) Fluidized bed Coating 3) Coacervation 4) Electrostatic Deposition

5) Vacuum deposition 6) Polymerization 7) Multiorific Centrifugal Process.
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