Encapsulation protects the core material from external environmental factors,
thereby preventing oxidation and enhancing preservation and stability.
It also facilitates the safe handling of substances that are toxic, irritating, or highly volatile.
In addition, by retaining volatile compounds within the capsule,
it enables controlled release under specific conditions, allowing precise
regulation of the release rate of the encapsulated substances.
Various functions can be imparted depending on the type of functional
core material and the encapsulating wall material.