Plastic films are used for packaging a wide range of products, offering protection against humidity and potential contaminants. Over time, however, these films let in air, diminishing the properties of the packed products. And while multilayer films combining several plastics are often used to improve protection, most of this packaging cannot be recycled. The researchers behind the EU-funded WHEYLAYER project found a cheese-based biodegradable alternative to conventional multilayer films.
Over half of the world's population lives in urban areas and that proportion is rising. This has severe consequences for the quality of the air we are exposed to thanks to increased transportation and industry within built-up areas. Rising levels of pollution prompted the European Commission in recent years to fund a number of projects into air quality across the EU at the city, regional and country level.