We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Microbial Enzyme Biotechnology to Reach Plastic Waste Circularity: Current Status, Problems and Perspectives
AI summary Read the abstract
This review evaluates the potential of microbial enzymes and whole-cell biocatalysts for plastic waste recycling, finding that while enzymatic tools are effective for PET, the most prevalent unrecycled plastics—polyurethanes and polyolefins—remain resistant to current enzyme-based degradation approaches.
The accumulation of synthetic plastic waste in the environment has become a global concern. Microbial enzymes (purified or as whole-cell biocatalysts) represent emerging biotechnological tools for waste circularity; they can depolymerize materials into reusable building blocks, but their contribution must be considered within the context of present waste management practices. This review reports on the prospective of biotechnological tools for plastic bio-recycling within the framework of plastic waste management in Europe. Available biotechnology tools can support polyethylene terephthalate (PET) recycling. However, PET represents only ≈7% of unrecycled plastic waste. Polyurethanes, the principal unrecycled waste fraction, together with other thermosets and more recalcitrant thermoplastics (e.g., polyolefins) are the next plausible target for enzyme-based depolymerization, even if this process is currently effective only on ideal polyester-based polymers. To extend the contribution of biotechnology to plastic circularity, optimization of collection and sorting systems should be considered to feed chemoenzymatic technologies for the treatment of more recalcitrant and mixed polymers. In addition, new bio-based technologies with a lower environmental impact in comparison with the present approaches should be developed to depolymerize (available or new) plastic materials, that should be designed for the required durability and for being susceptible to the action of enzymes.
More Papers Like This
Microbial enzyme biotechnology to reach plastic waste circularity
AI summary Read the abstract
Review of microbial enzymes as biotechnological tools for plastic waste biodegradation and circularity
Enzymes’ Power for Plastics Degradation
AI summary Read the abstract
Researchers surveyed enzymes capable of degrading synthetic plastics, highlighting how biological catalysts—especially cutinases and laccases—can break down polymers like PET and polyurethane under mild conditions, offering a promising complement to mechanical and chemical recycling methods.
Microbial enzymes for the recycling of recalcitrant petroleum‐based plastics: how far are we?
AI summary Read the abstract
This review examines the progress in identifying microbial enzymes capable of breaking down petroleum-based plastics like polyethylene, polystyrene, polyurethane, and PET. Researchers highlight recent advances in using polyester-degrading enzymes to recover raw materials from PET waste through biocatalytic recycling. The study discusses the potential and remaining challenges of using biological approaches to address the growing global problem of plastic waste accumulation.
Innovative biotechnological approaches for plastic degradation: A pathway to sustainable waste management
AI summary Read the abstract
This review examines biotechnological approaches to plastic degradation, highlighting enzymes such as PETase, MHETase, laccases, and lipases as promising tools for breaking down recalcitrant synthetic polymers. The authors identify key challenges including degradation efficiency, economic scale-up, and regulatory barriers to using genetically modified organisms in industrial applications.
Biodegradation of Plastic and the Role of Microbial Enzymes in Plastic Waste Management
AI summary Read the abstract
This review examines how microbial enzymes, particularly PET hydrolases and oxidative enzymes, can depolymerize and break down common plastic polymers through biological degradation. The study suggests that enzymatic approaches to plastic waste management offer a promising complement to mechanical and chemical recycling, though optimizing enzyme activity and scaling up the process remain key challenges.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.