Scientists create compostable food packaging that leaves no trace

Scientists at Murdoch University in Western Australia have developed a new type of bioplastic that is fully compostable and leaves no environmental trace, addressing the growing problem of plastic pollution. By harnessing native microbes from local environments, the researchers produce a natural polymer called PHB, which microbes store as excess organic molecules. Unlike conventional plastics that break down into harmful microplastics, this bioplastic naturally degrades in soil and water, eliminating long-term contamination risks. The innovation is particularly aimed at creating compostable linings for recycled paper or cardboard food packaging, a sector where over 80% of single-use plastics currently end up in landfills due to lack of recyclability. This research is part of the Bioplastics Innovation Hub, a collaboration between Murdoch University and CSIRO, combining expertise in microbiology, genetics, and engineering to develop sustainable packaging solutions. The team envisions widespread adoption of bioplastics in households as part of a circular economy, aligning with Western Australia’s 10-Year Science