circular-bioeconomy
The circular bioeconomy is an economic model that integrates biological resources, processes, and principles to minimize waste by keeping plant-derived materials and nutrients in continuous use cycles. In plant science, this framework drives research into valorizing agricultural residues, optimizing biomass production, and developing crops specifically suited for cascading use — where every part of the plant contributes to food, feed, fiber, fuel, or fertilizer. This approach is critical for developing sustainable agricultural systems that reduce dependence on finite resources while maximizing the ecological and economic value extracted from plant biomass.
PubMed · 2026-04-01
Scientists discovered a way to turn used biodegradable plastics — like compostable packaging — into a new, useful bioplastic by feeding them to bacteria. This creates a circular recycling loop for materials that might otherwise end up in landfills or compost bins.
Bacteria converted dissolved compostable plastic into new bioplastic with up to 32.9% yield by weight in a 5-liter bioreactor after 96 hours.
Polylactic acid (PLA, a common compostable plastic) achieved 100% dissolution efficiency and produced the highest bioplastic output at 3.69 g/L in larger bioreactor trials.
The newly produced bioplastic was thermally stable up to 250°C, suggesting it could be a high-quality, functional material suitable for real-world applications.