ABSTRACT
Nano-delivery systems are designed to allow delivery of food bioactives to a particular or targeted site. Polyphenols, probiotics, micronutrients, enzymes, nutraceuticals, polyunsaturated fatty acids, and proteins are the main food bioactives which can be added to improve and increase the value addition of foods Nano-delivery systems are classified into two major group: liquid and solid. Liquid systems are of three types: nanoemulsion, nanoliposomes, nano polymersomes, and solid systems distinguished into lipid nanoparticles, polymeric nanoparticles, and nanocrystals. High-shear homogenization is a dispersing technique which was initially used for the production of solid lipid nanodispersions. The cold homogenization technique is most suitable for heat-labile bioactives and hydrophilic compounds. Nano-delivery of pharmaceutical drugs is already an established system; more studies need to adopt nano lipid carriers for food bioactives. The development of a multicomponent system with different functionalities in the same delivery system which can be absorbed within the gastrointestinal tract and overcome the blood-brain barrier is the future.
