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20 resultsShowing papers similar to Biodegradation of Poly(ethylene terephthalate) by Bacillus safensis YX8
ClearDegradation of PET plastic with engineered environmental bacteria
Scientists engineered a soil bacterium to break down PET plastic, one of the most common plastics in food packaging and textiles, by giving it the ability to produce and secrete a powerful plastic-degrading enzyme. This is one of the first demonstrations of a living microorganism that can directly consume PET as a food source, which could lead to more sustainable recycling approaches.
A novel Bacillus subtilis BPM12 with high bis(2 hydroxyethyl)terephthalate hydrolytic activity efficiently interacts with virgin and mechanically recycled polyethylene terephthalate
Researchers discovered a soil bacterium, Bacillus subtilis BPM12, that can break down PET plastic building blocks at impressively high rates and across a wide range of temperatures and pH levels. The study shows that combining mechanical shredding with biological degradation by this microbe could be a practical route to recycling more PET plastic waste, a major source of environmental microplastics, back into useful chemicals.
Examining and identifying bacteria-mediated polyethylene terephthalate bottle waste degradation Byprops
Researchers isolated Bacillus subtilis from PET plastic waste dump sites and demonstrated that the bacterium can degrade polyethylene terephthalate microplastics over six months, with UV-pretreated PET showing the most pronounced changes including new alkyl aryl ether and alkene groups detected by FTIR and GC-MS. The findings suggest soil bacteria could offer a biodegradable solution for eliminating PET from plastic-contaminated sites.
Biodegradation of Poly(Ethylene Terephthalate) Microplastics by Baceterial Communities From Activated Sludge
Scientists isolated bacteria from wastewater treatment sludge that can biodegrade PET plastic, used in plastic bottles and food packaging. The bacteria broke down PET microplastics over a 60-day period, pointing toward a potential biological tool for removing plastic contamination from water treatment systems.
Biodegradation of Poly(Ethylene Terephthalate) Microplastics by Baceterial Communities From Activated Sludge
Scientists isolated bacteria from wastewater treatment sludge that can biodegrade PET plastic, used in plastic bottles and food packaging. The bacteria broke down PET microplastics over a 60-day period, pointing toward a potential biological tool for removing plastic contamination from water treatment systems.
Efficient biodegradation of Polyethylene terephthalate (PET) plastic by Gordonia sp. CN2K isolated from plastic contaminated environment
Researchers isolated a bacterium called Gordonia sp. CN2K from a waste management site that can break down PET plastic, one of the most widely used and persistent types of plastic. Over 45 days, the bacterium degraded over 40% of PET microplastic by using it as its sole carbon and energy source. The findings suggest that naturally occurring microorganisms could be harnessed to help address the growing problem of microplastic pollution in the environment.
Evaluation of Bacillus-Associated Polyethylene Terephthalate (PET) Surfaces For Biodegradation
Polyethylene terephthalate (PET) is one of the most common plastics, found in bottles and packaging, and it breaks down into persistent microplastics in the environment. This study screened bacteria collected from PET surfaces at a landfill in Malaysia, finding strains with promising esterase activity capable of forming biofilms on PET and beginning to degrade it. The findings point toward biological solutions for breaking down PET microplastics before they spread further into ecosystems.
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.
Biological Degradation of Polyethylene Terephthalate by Rhizobacteria
Researchers isolated rhizobacteria — bacteria associated with plant roots — that can biodegrade polyethylene terephthalate (PET) plastic. This finding suggests that soil bacteria near plants may contribute to plastic breakdown in contaminated soils, though degradation rates remain slow.
Marine hydrocarbon-degrading bacteria breakdown poly(ethylene terephthalate) (PET)
Scientists used microcosm studies to investigate whether marine hydrocarbon-degrading bacteria can break down PET plastic, finding that specific bacterial strains could colonize and degrade PET surfaces, offering insights into natural plastic biodegradation in the ocean.
Biodegradation of polyethylene terephthalate microplastics by Paenibacillus naphthalenovorans PETKKU2: Response surface optimization and genomic evidence for an alternative degradation mechanism
This study identified a soil bacterium, Paenibacillus naphthalenovorans PETKKU2, isolated from a Thai landfill, as capable of degrading PET microplastics and achieving nearly 10% weight loss over 35 days under optimized conditions — through a degradation pathway distinct from the well-known PETase enzyme route. Surface analysis confirmed progressive erosion and chemical changes in the plastic. Discovering new microbial pathways for PET degradation is important for developing biological recycling and remediation strategies for one of the world's most common plastic pollutants.
Microbial degradation of polyethylene terephthalate: a systematic review
This systematic review examines how microorganisms like bacteria and fungi can break down PET plastic, one of the most common types of plastic waste. The research identifies several promising biological approaches that could help reduce plastic pollution without the harmful side effects of chemical recycling methods. Finding better ways to break down plastic waste is critical for reducing the microplastics that end up in our water, food, and bodies.
Biodegradation of Microplastic Derived from Poly(ethylene terephthalate) with Bacterial Whole-Cell Biocatalysts
Engineered bacterial whole-cell biocatalysts were used to biodegrade PET microplastics under alkaline conditions, with the strain using PET as a sole carbon source and producing monomers that did not accumulate due to continuous cellular metabolism. The study demonstrates a combined enzymatic-microbial approach that overcomes product inhibition in enzymatic PET degradation.
In vivo degradation of polyethylene terephthalate using microbial isolates from plastic polluted environment.
Researchers isolated four microbial strains from plastic waste dumping sites and tested their ability to degrade polyethylene terephthalate in vivo, finding measurable weight loss and surface modification of PET films over 30 days, with Aspergillus species demonstrating the highest degradation efficiency.
Degradation of polyethylene terephthalate (PET) plastics by wastewater bacteria engineered via conjugation
Scientists engineered wastewater bacteria to break down PET plastic, one of the most common microplastic types, by transferring plastic-degrading genes through a natural DNA-sharing process. The modified bacteria could partially degrade a consumer PET product in 5 to 7 days. This proof-of-concept approach could help reduce the amount of microplastics released from wastewater treatment plants into the environment.
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.
Eco-microbiology: discovering biochemical enhancers of PET biodegradation by Piscinibacter sakaiensis
Researchers are working to accelerate the biodegradation of PET plastic by Piscinibacter sakaiensis, a bacterium that naturally evolved to consume this common type of plastic. Using bioactivity screens and degradation tests, they identified a small number of biochemical conditions that more than doubled the PET biodegradation rate. The work provides a foundation for developing a fermentation process that could help address PET plastic pollution at scale.
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.
Sustainable solution for microplastic removal: Sequential biodegradation and detoxification of polyethylene terephthalate microplastics by two natural microbial consortia
Researchers developed a two-stage approach using natural microbial communities to break down PET microplastics and neutralize their toxic byproducts. The first bacterial-fungal group achieved 28% degradation over 60 days, while a second group of bacteria further processed the breakdown products, reducing their toxicity. The study demonstrates that sequential microbial treatment could be a practical, eco-friendly strategy for addressing PET microplastic pollution.
Enhanced degradation of polyethylene terephthalate (PET) microplastics by an engineered Stenotrophomonas pavanii in the presence of biofilm
Scientists engineered a biofilm-forming bacterium to break down PET microplastics (the type found in water bottles and food containers) at room temperature. The engineered bacteria achieved significant PET degradation over 30 days and also worked on other polyester plastics, offering a potential biological solution for cleaning up microplastic pollution in water environments.