Aimplas Forms BioSupPack to Transform Brewery Waste Into Packaging Materials

Why It Matters

Converting low‑value brewery waste into recyclable bioplastics gives manufacturers a scalable path to replace fossil‑based packaging and comply with tightening EU sustainability rules.

Key Takeaways

• Brewery spent grains become high‑purity PHB biopolymer.
• PHA coatings are 99% biobased, fully biodegradable.
• New packaging offers compostable and recyclable barrier performance.
• Enzymatic recycling prototype recovers bioplastic waste efficiently.
• Project funded with €7.6M (~$8.3M) EU Horizon 2020 grant.

Pulse Analysis

The brewing industry generates millions of tonnes of spent grain each year, a low‑value by‑product that often ends up in landfills or animal feed. BioSupPack leverages this abundant waste stream as a feedstock for a circular bioeconomy, turning it into high‑purity polyhydroxybutyrate (PHB) through a novel plasma pretreatment followed by microbial fermentation. By integrating breweries with bioplastic producers, the consortium creates industrial symbiosis that reduces raw‑material costs and carbon footprints while adding value to what was previously a disposal expense.

Technical breakthroughs underpin the commercial promise of BioSupPack. The project delivered polyhydroxyalkanoate (PHA) plastisol coatings that are 99 % biobased and fully biodegradable, providing a direct substitute for polyethylene in paperboard and for PVC in textiles. Additionally, fiber‑based packaging with barrier properties comparable to conventional plastics was demonstrated for applications such as ice‑cream cups, offering dual end‑of‑life options: industrial composting or enzymatic recycling. A sorting prototype equipped with selective enzymes enables efficient recovery of these bioplastic films, closing the loop and showcasing a viable end‑of‑life pathway that aligns with circular‑economy principles.

Regulatory pressure is accelerating adoption. The EU Packaging and Packaging Waste Regulation mandates that all packaging be recyclable by 2030, while consumer demand for sustainable alternatives continues to rise. BioSupPack’s €7.6 million (≈$8.3 million) Horizon 2020 funding de‑risked development and positioned the technologies for rapid integration into existing manufacturing lines. As brand owners seek compliant, low‑carbon packaging, the consortium’s ready‑to‑scale solutions provide a clear route to replace fossil‑based plastics, promising significant market shift toward biobased, recyclable packaging across food, cosmetics and consumer‑goods sectors.