Wild microorganisms aid scientists in creating degradable plastics, retourning to their natural state
In a groundbreaking development, scientists at Murdoch University in Western Australia are harnessing the power of native microbes to create a new, eco-friendly bioplastic. This innovative material, which is designed to be fully compostable and environmentally benign, offers a sustainable alternative to traditional plastics, particularly for food packaging.
The team, working as part of the Bioplastics Innovation Hub (BIH), a joint venture between Murdoch University and the Commonwealth Scientific and Industrial Research Organisation (CSIRO), is focusing on using microbes found in local soils and ecosystems. These "pretty cool bacteria" naturally store excess energy in the form of organic compounds, which are then converted into a biodegradable polymer called polyhydroxybutyrate (PHB).
PHB is a natural plastic-like material that breaks down completely without polluting the environment. Unlike synthetic plastics, these bioplastics degrade without leaving dangerous microplastics that can contaminate water, food, and air. The new bioplastic is carbon-neutral, non-toxic, and rapidly degradable, making it an ideal solution for other foods requiring a "food-safe" plastic lining.
The BIH team is striving to replace conventional plastic linings in food packaging, especially cardboard or paper-based packaging that requires moisture or grease barriers. This move addresses the pressing issue that over 80% of Australian food packaging currently ends up in landfill and is unrecyclable, contributing to plastic pollution.
Professor Daniel Murphy, director of BIH, emphasised the importance of creating plastics that are not only biodegradable but also environmentally benign, meaning they have no lasting harmful impact on ecosystems or climate change.
The new bioplastic material simply vanishes over time, leaving no trace on land or water. It is expected that this eco-friendly innovation will be welcomed by consumers looking for greener alternatives and meet industry requirements.
One key product that industry is asking for is a compostable lining for recycled paper or cardboard-based food packaging. With this in mind, the team at the Bioplastics Innovation Hub is engineering completely compostable products for the food sector.
This development marks a significant step towards reducing plastic waste in oceans and land ecosystems, offering a more sustainable future for food packaging.
- The groundbreaking bioplastic being developed by the Bioplastics Innovation Hub (BIH) at Murdoch University utilizes technology derived from science, specifically harnessing microbes found in local ecosystems, to produce a compostable material called polyhydroxybutyrate (PHB).
- This innovation marks a critical advancement in environmental-science, providing a potential solution to the pressing issue of climate-change contributed by traditional plastics, particularly in food packaging, which currently account for over 80% of Australian waste ending up in landfill.
- As Professor Daniel Murphy, director of BIH, emphasizes, the goal of this venture is to create plastics that are not only biodegradable but also environmentally benign, ensuring they have no lasting harmful impact on ecosystems or climate change, thereby supporting innovation in the food industry and consumer demand for sustainable, eco-friendly alternatives.
