Chitosan edible coatings extend shelf life and retain nutritional
quality of fresh fruits and vegetables. LbL self assembly where
chitosan is used as component of bilayer or multilayer is a new
approach in edible coatings. “One area to be explored more deeply
is the application of physical treatments during or after coating
formation” (Ortiz, Vicente, & Mauri, 2014). Composite chitosan
films containing nanoparticles can essentially decrease water vapor
permeability during storage and can be used in food packaging
provided that the safety of nanoparticles will be confirmed.
Methods of rational design of edible coatings compositions have to
be further developed. The ability of polyphenols to inhibit protein
conformational changes has to be further investigated.