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61,005 resultsShowing papers similar to Screening, Identification, and Degradation Mechanism of Polyester Fiber-Degrading Bacteria
ClearBiodeterioration of Microplastics: A Promising Step towards Plastics Waste Management
Researchers screened bacteria from a landfill site for plastic-degrading ability, finding Alcaligenes faecalis and Bacillus cereus as the most active strains, achieving up to 17% degradation of polyester and 29% degradation of polyester by Bacillus cereus. Surface changes confirmed degradation was occurring, and no pre-treatment was needed for these bacteria to utilize plastic as an energy source.
Isolation, Screening and Characterization of Plastic-Degrading Bacteria From Soil for PWM
Scientists isolated bacteria from soil near garbage sites and identified strains capable of degrading plastic materials, with scanning electron microscopy revealing physical damage — holes and cracks — to plastic surfaces after bacterial exposure within 30 days. The study contributes to the search for soil microbes that could be harnessed for biological plastic waste management. Biodegradation by indigenous soil bacteria could offer a more environmentally friendly alternative to landfilling or incineration of plastic waste.
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.
Phenotypic and Genomic Characterization of Polyethylene-Degrading Bacillus cereus PE-1 Enriched from Landfill Microbial Consortium
Scientists found a bacteria called Bacillus cereus PE-1 in landfill soil that can actually eat and break down plastic bags and containers (polyethylene). The bacteria damaged the plastic's surface and reduced its weight by about 5% in just 30 days, suggesting it could potentially help clean up plastic pollution in the environment. While this research is still early and needs more testing, it offers hope for using natural bacteria to tackle the growing problem of plastic waste that threatens our ecosystems and food chain.
Isolation and characterization of new bacterial strains degrading low-density polyethylene
Researchers isolated and characterized new bacterial strains capable of degrading low-density polyethylene, one of the most common plastic polymers. The strains were found in landfill and compost environments, and the study suggests that biological degradation could be a promising approach for addressing polyethylene waste accumulation.
Microbial Allies in Plastic Degradation: Specific bacterial genera as universal plastic-degraders in various environments
Researchers identified specific bacterial genera capable of degrading multiple types of plastic across different environments including landfill soil, sewage sludge, and river water. They found that certain bacteria, such as Pseudomonas and Bacillus species, consistently appeared as effective plastic degraders regardless of the environment. The study suggests that these universal plastic-degrading bacteria could be valuable candidates for developing bioremediation strategies to address plastic pollution.
Plastics: Environmental and Biotechnological Perspectives on Microbial Degradation
This review explores the environmental challenges of plastic accumulation and the potential for microorganisms to degrade various types of plastics. Researchers summarized recent discoveries of bacteria and fungi capable of breaking down common plastics like polyethylene and PET, though degradation rates remain slow. The study highlights microbial degradation as a promising but still developing biotechnological approach to addressing plastic pollution.
Degradation 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.
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.
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.
Genomic insights and metabolic pathways of an enriched bacterial community capable of degrading polyethylene
Researchers enriched bacteria from wastewater treatment sludge that can break down polyethylene plastic, achieving a 3% weight reduction in plastic films over 28 days. Genomic analysis identified specific bacterial strains and 14 plastic-degrading genes, including those for enzymes like laccase and lipase that attack the plastic's molecular structure. The study offers a potential pathway toward using naturally occurring bacteria as a sustainable solution for plastic waste degradation.
Degradation of low density polyethylene by Bacillus species
Researchers tested the ability of two common Bacillus bacteria species to degrade low-density polyethylene and observed weight losses of about 3.5 and 2.8 percent over 30 days. Surface analysis revealed cracks, pits, and chemical oxidation on the plastic sheets exposed to the bacteria. The study suggests that these widely available microorganisms could potentially be developed as biological agents for polyethylene degradation, though the underlying enzymatic mechanisms require further investigation.
Finding needles in haystacks: identification of novel conserved PETase enzymes in Streptomyces
Researchers identified a family of PET-degrading enzymes (LipA variants) naturally present in soil-dwelling Streptomyces bacteria, and showed that one variant could physically roughen and degrade amorphous PET film. The finding suggests that common soil bacteria may play a larger role than appreciated in breaking down plastic waste in the environment, and could be candidates for biotechnological recycling applications.
Bioprospecting for polyesterase activity relevant for PET degradation in marine Enterobacterales isolates
Researchers screened marine Enterobacterales isolates for polyesterase activity capable of degrading PET plastic, identifying bacterial strains from marine environments as candidates for bioremediation strategies targeting one of the world's most problematic plastic pollutants.
Microbial Degradation of Polyester Microfibers Using Indigenously Isolated Bacterial Strain Exiguobacterium Sp.
Scientists isolated a bacterium called Exiguobacterium from microplastic-contaminated sites in India that can break down polyester microfibers. In lab conditions, the bacterium degraded about 19% of the polyester material in 28 days. While this is a promising step toward biological cleanup of microplastic pollution, much faster degradation rates would be needed to make a real dent in environmental contamination.
Breaking down the plastics paradox: polymer degrading microorganisms
This review examines microorganisms capable of degrading plastics, cataloging the bacteria and fungi discovered to break down common polymers like polyethylene, polystyrene, and PET. Identifying and harnessing plastic-degrading microbes could provide biological solutions to the accumulation of microplastics in the environment.
Development and characterization of a bacterial enzyme cascade reaction system for efficient and stable PET degradation
Scientists engineered a bacterial system that displays plastic-degrading enzymes on the cell surface to efficiently break down PET plastic, achieving a 23% degradation rate of microplastics within 7 days. The system uses E. coli bacteria with specially designed protein fibers that both grip and digest PET fragments. This biotechnology approach could eventually help address the growing problem of microplastic pollution in water and soil environments.
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.
Exploitation of bacterial strains for microplastics (LDPE) biodegradation
Researchers tested five bacterial strains for their ability to biodegrade low-density polyethylene microplastics over four months. Pseudomonas aeruginosa showed the most significant degradation with an 18.2% weight loss, followed by Bacillus subtilis at 16.1%. The study demonstrates that naturally occurring soil bacteria can break down polyethylene microplastics, suggesting a potential biological approach to addressing plastic waste pollution.
Biodegradation of Polyethylene Using Lysinibacillus macroides: Isolation, Characterization and Evaluation
Researchers isolated and characterized Lysinibacillus macroides bacteria from plastic dumping grounds in Karad, India, and evaluated their ability to biodegrade polyethylene microplastics. The study demonstrated measurable polyethylene degradation by the isolated bacterial strain, supporting its potential as a low-cost microbial approach to plastic pollution remediation.
Potential Bacteria Isolated from Contaminated Sites as Bio-degraders of Various Types of Plastic
Researchers isolated bacteria from six plastic-contaminated soil sites and screened 40 strains for their ability to degrade PP, PS, PE, PET, and PLA plastics, identifying eight capable strains including Streptomyces ardesiacus and Pseudomonas plecoglossicida, with Streptomyces ardesiaca NBI0111 showing the highest degradation capacity.
Microbial Transformation of Polyethylene Terephthalate Microplastics by Wetland-Derived Microbial Communities: Implications for Coastal Sediment Systems
Researchers exposed PET plastic fibers to a wetland sediment microbial consortium for 60 days, finding 13.7% weight loss driven by synergistic interactions among taxa like Acinetobacter and Pseudomonas, suggesting coastal wetlands harbor natural PET-degrading communities with potential for nature-based plastic remediation strategies.
[Screening, Identification, and Performance of Microplastic-degrading Functional Bacteria in Saline-alkali Soil Environment].
Researchers isolated three strains of salt-resistant bacteria from saline-alkali soil that can degrade microplastics. When all three strains were combined, they achieved weight loss rates of about 22-24% for polyethylene and PET microplastics over 60 days, significantly outperforming individual strains. The study reveals the enzymatic mechanisms behind how these bacteria break down plastic polymers through long-chain depolymerization and metabolic cycling.