The package, which is currently being developed at the Fraunhofer Research Institute, not only prevents
The main body of the bag is made of 100% recyclable paper, and its interior is coated with a mixture of natural wax and protein. A special layer is applied to the paper in liquid form.
The coating is applied to the paper in a standard roll-to-roll manner. Fraunhofer Institute
Beeswax and wax from the candelilla bush and carnauba palm form an airtight and waterproof barrier. Antibacterial proteins are extracted from plants such as rapeseed, lupine and sunflower.
All waxes and proteins are biodegradable, readily available and recognized as food safe. Scientists are already studying the possibility of applying themdirectlyon food products, forming an edible coatingagainst damage. In addition, it is hoped that proteins could eventually be recovered from agricultural waste that would otherwise be composted, incinerated or dumped in landfills.
The bag retains its waterproof and antibacterial properties after refrigeration and freezing. The bioactive layer will not interfere with recycling, the bag can be disposed of with the rest of the paper.
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