Several chemical companies are producing a nanotechnology transparent plastic film from packaging containing nanoparticles of clay.
Some nano packaging materials are designed to reduce gas such as oxygen and carbon dioxide and moisture exchange and UV light exposure or to emit antimicrobials and antioxidants, with the goals of keeping food ‘fresher’ for longer – or at least slowing deterioration.
If the oxygen gets into packaged food products, such as cheese or meat, it can reduce the freshness of foods, so it may no longer be safe to eat.
Bottles made with nano-composites minimize the leakage of carbon dioxide out of the bottle, increasing the shelf life of carbonated beverages without using heavier glass bottles or more expensive cans.
By reducing UV light exposure, the barrier technology will minimize the damage to food contained in transparent packaging.
The nanoclay particles also makes the plastic lighter, stronger and more heat-resistant.
Nano packaging materials are also developed to interact with foods they contain such as the ability to ‘release nanoscale antimicrobials, antioxidants, flavors, fragrances or nutraceuticals into the food or beverage to extend its shelf-life or to improve its taste or smell’.
Nano packaging applications may provide a number of benefits for manufacturers including the capacity to keep packaged food edible for longer.
This may enable food to travel longer distances and to sit for extended periods in storage.
Nano food packaging
