MIXed plastics biodegradation and UPcycling using microbial communities: EU Horizon 2020 project MIX-UP started...

Area of Science:

• Biotechnology and Environmental Science
• Circular Economy and Waste Valorization
• Polymer Science and Engineering

Background:

• Traditional linear plastic value chains generate significant recalcitrant waste.
• Current mechanical and chemical recycling methods have limitations for mixed plastic streams.
• There is a market need for sustainable routes to valorize plastic waste.

Purpose of the Study:

• To introduce the EU Horizon 2020 research project MIX-UP.
• To develop a sustainable, biodegradable-based value chain for mixed plastics.
• To convert plastic waste into value-added products and biomass using microbial communities.

Main Methods:

• Utilizing mixed plastics (PE, PUR, PP, PET, PS, PHA, PLA) as feedstock.
• Employing controlled enzymatic and microbial degradation of pre-treated plastic waste.
• Optimizing known plastic-degrading enzymes and isolating novel ones.
• Developing tailored enzyme cocktails and enhancing enzyme production.
• Converting plastic monomers into value-added products using stable microbiomes.
• Recirculating recalcitrant material via physicochemical treatment.

Main Results:

• Demonstration of a novel workflow for mixed plastic biodegradation and upcycling.
• Creation of stable, self-sustaining microbiomes for selective monomer conversion.
• Production of value-added products, key building blocks, and biomass from plastic waste.
• Successful integration of enzymatic and microbial processes for enhanced plastic valorization.

Conclusions:

• The MIX-UP project establishes a circular (bio)plastic economy.
• This approach adds value to poorly recycled plastic wastes.
• It addresses market needs for sustainable plastic waste valorization routes.