* Incorporation of an oxygen-scavenger that binds any residual oxygen inside the packaging and any oxygen that penetrates from the outside (active barrier). The oxygen-scavengers can be separate elements (sachets, labels) or they can be incorporated into the packaging material, for example as separate layer or as an additive in the polymers. They are activated by moisture, light, or heat.
* Packing products under a protective gas (MAP: Modified Atmosphere Packaging)
* High barrier films which minimize the penetration of oxygen
The latest developments at Fraunhofer IVV concern films containing gallic acid and also palladium vapor deposition.