*2.9.1 Packaging component*

Nanoparticle from starch can be used as a material in barrier films for food packaging. The primary focus of the barrier properties of the packaging films is on water vapor transmission and oxygen permeability [117]. However, a decrease in water vapors permeability was observed when the maize starch was used. Kristo and Biliaderis [118] revealed addition of 30–40% waxy maize starch significantly decreased the water vapor permeability in the component. Similarly, García *et al.* [119] observed a 40% decrease in the permeability of cassava starch film, reinforced with 2.5% starch nanoparticles.
