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20 resultsShowing papers similar to Enzymatic Remediation of Polyethylene Terephthalate (PET)–Based Polymers for Effective Management of Plastic Wastes: An Overview
ClearAn Overview into Polyethylene Terephthalate (PET) Hydrolases and Efforts in Tailoring Enzymes for Improved Plastic Degradation
This review examines the discovery and engineering of PET-degrading enzymes including PETase and cutinase variants, discussing protein engineering strategies to improve catalytic efficiency and thermostability for practical biodegradation of polyethylene terephthalate plastic waste.
Perspectives on the Role of Enzymatic Biocatalysis for the Degradation of Plastic PET
This review discusses the role of enzymatic biocatalysis in PET plastic degradation, examining how the discovery of PETase and subsequent enzyme engineering have advanced biodegradation as an alternative to chemical and mechanical recycling for one of the most produced plastics globally.
Enzymatic PET Degradation
This review examines enzymatic degradation of PET (polyethylene terephthalate), the plastic used in bottles and polyester clothing, as a promising pathway for breaking down this persistent polymer. Advances in engineering more efficient PET-degrading enzymes could enable industrial-scale biological recycling and reduce the environmental accumulation of PET microplastics.
Determinants for an Efficient Enzymatic Catalysis in Poly(Ethylene Terephthalate) Degradation
This review covers the current state of enzymatic PET degradation, examining which enzymes act on PET, how protein engineering has improved their activity, and what challenges remain before enzymatic recycling can be deployed at industrial scale.
Application of PETase in Plastic Biodegradation and Its Synthesis
This review examines how PETase enzymes can be used to biodegrade plastic waste, particularly polyethylene terephthalate, which is one of the most widely used plastics globally. Researchers discuss recent advances in modifying PETase enzymes for improved efficiency and establishing sustainable synthesis platforms. The study suggests that enzymatic biodegradation offers a promising biological solution to the growing plastic pollution crisis.
Biodegradation of Plastic and the Role of Microbial Enzymes in Plastic Waste Management
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.
The Current State of Research on PET Hydrolyzing Enzymes Available for Biorecycling
This review summarizes the current state of PET-hydrolyzing enzymes, including thermophilic cutinases and engineered variants, that are candidates for enzymatic biorecycling of PET plastic waste back into reusable monomers.
Current knowledge on enzymatic PET degradation and its possible application to waste stream management and other fields
This review distinguished between enzymatic PET surface modification (useful for fiber treatment) and enzymatic PET degradation (needed for waste management), cataloguing the hydrolases capable of each function and the conditions required. The authors evaluate the prospects for deploying PET-degrading enzymes in industrial plastic waste streams.
Process development for PETase production and purification
Researchers developed a production and purification process for PETase, an enzyme capable of breaking down polyethylene terephthalate (PET) plastic biologically, as an alternative to inadequate mechanical and chemical recycling methods for mixed and contaminated PET waste. The study addresses the global plastic pollution crisis by advancing the scalability of enzymatic PET degradation as a sustainable recycling pathway.
Microbial enzymes for the recycling of recalcitrant petroleum‐based plastics: how far are we?
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.
Development of Enzyme-Based Approaches for Recycling PET on an Industrial Scale
This paper reviews the development of enzyme-based methods for breaking down PET plastic (used in bottles and packaging) at an industrial scale. While enzymatic recycling is a promising solution to plastic waste, current methods are still too slow and costly for widespread use. Improving these technologies could help reduce the enormous amount of PET entering the environment and breaking down into microplastics.
Recent advances in enzyme engineering for improved deconstruction of poly(ethylene terephthalate) (PET) plastics
This review covers recent progress in engineering enzymes that can break down PET plastic, the material used in water bottles and food containers. While natural enzymes that digest PET have been discovered, they are not yet fast or durable enough for industrial-scale recycling. Advances in protein engineering, directed evolution, and computational design are steadily improving these enzymes, which could eventually provide a sustainable way to recycle PET and reduce microplastic pollution at its source.
Explorations of Polyethylene Terephthalate (PET) Hydrolase for addressing PET Plastic Pollution
This review explores the biology of PETase enzymes and their potential for addressing PET plastic pollution, covering the discovery of Ideonella sakaiensis and subsequent enzyme engineering efforts. Developing efficient PET-degrading enzymes is a promising biotechnological strategy for reducing plastic pollution at scale.
Enzymatic Degradation of PET plastic
This study tested commercial-grade enzymes for degrading PET plastic and found that enzymatic degradation was effective at laboratory scale but faced challenges for real-world application. Scaling up enzymatic PET recycling could reduce the persistence of plastic waste that eventually fragments into microplastics in the environment.
An efficient strategy to tailor PET hydrolase: Simple preparation with high yield and enhanced hydrolysis to micro-nano plastics
This study developed a simplified, high-yield preparation method for PET-degrading hydrolase enzymes to improve their ability to break down PET nano- and microplastics. The engineered enzyme showed enhanced hydrolysis activity against PET microplastics, offering a more practical route to enzymatic plastic waste treatment.
Current Knowledge on Polyethylene Terephthalate Degradation by Genetically Modified Microorganisms
This review covers genetically modified microorganisms engineered to degrade polyethylene terephthalate, examining how bioengineering of enzymes such as PETase and enhanced expression systems can overcome the low biodegradation rates of wild-type microorganisms toward this ubiquitous plastic.
Marine PET Hydrolase (PET2): Assessment of Terephthalate- and Indole-Based Polyester Depolymerization
This study characterized a marine-derived enzyme (PET2) capable of breaking down PET plastic under mild conditions, assessing its efficiency for enzymatic recycling. Enzyme-based PET recycling could prevent plastic waste from fragmenting into the microplastics that accumulate in oceans and organisms.
Engineered polyethylene terephthalate hydrolases: perspectives and limits
This review examines progress in engineering enzymes that can break down PET plastic, the material used in most beverage bottles and synthetic textiles. Researchers found that while significant advances have been made through protein engineering and machine learning, no enzyme yet exists that can efficiently degrade the crystalline form of PET found in real-world waste. The study outlines the key challenges remaining before enzymatic plastic recycling can work at industrial scale, including handling microplastic contamination.
Genes for a Circular and Sustainable Bio-PET Economy
This review examines the genetics of enzymes that can biodegrade PET plastic, exploring how genetic engineering could accelerate the development of organisms capable of breaking down plastic waste. Enzymatic degradation of PET could help address plastic pollution including plastic bottles that break down into microplastics.
Enzymatic Degradation of Polyethylene Terephthalate Plastics by Bacterial Curli Display PETase
Researchers engineered bacteria to display a PET-degrading enzyme on their surface, creating a reusable biocatalyst capable of breaking down polyethylene terephthalate plastics. The system worked under various conditions, remained stable for at least 30 days, and could even degrade PET microplastics in wastewater and highly crystalline consumer plastic waste. This biological approach offers a promising environmentally friendly alternative for plastic recycling and waste treatment.