ABSTRACT
Due the presence of wide range of bioactive chemical compounds in liquid natural products so called essential oils, they have been extensively used for various food and non-food applications which makes them more attractive from commercial perspective. Nevertheless their utilization is always challenged due to their high volatility and high risk of deterioration upon direct exposure to heat, humidity, light, or oxygen. Due to the presence of lipophilic and highly volatile components, chemical stability of essential oils are always criticized as these chemicals are more susceptible to conversion and degradation reactions. Change in chemical nature may result in a loss of quality and biological properties. Nanoencapsulation can be utilized to improve the shelf life of essential oils. Here in this chapter we focused on the chemical composition of essential oils and brief over encapsulation method mainly polymeric nanoparticle encapsulation method.
