In this article, current nanocomposite technologies to enhance
the mechanical and barrier properties of synthetic polymers
and biopolymers for food packaging are reviewed. In addition,
nanotechnology developments targeting active packaging applications
are discussed, including antimicrobial, oxygen scavenging,
and shelf-life extension of food. Nanotechnologies that
are currently being exploited for the development of intelligent
packaging with enhanced communication function are presented,
focusing mainly on oxygen, humidity and freshness indicators.
Nanostructured coatings that enhance the barrier
properties of packaging films are reviewed. And finally, the
perspectives of nanotechnology in food packaging applications
are discussed.