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Biodegradation of Low-Density Polyethylene and Polyethylene Terephthalate by Bacterial and Fungal Isolates from Active Dumpsites in Ogwa and Ebelle Communities of Esan Land
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Scientists found bacteria and a fungus living in dumpsite soil that can actually "eat" and break down common plastics like grocery bags and water bottles, breaking down 11-15% of the plastic material in just two weeks. This matters because these tiny organisms could one day help clean up plastic waste naturally, potentially reducing the amount of plastic (and the microplastics it breaks into) that ends up in our soil, water, and eventually our bodies. That said, this was a lab study, so more research is needed before these microbes could be used to tackle plastic pollution in the real world.
Plastic pollution is a growing environmental challenge due to the persistent non-degradability of plastics. This study assessed the biodegradation of low-density polyethylene (LDPE) and polyethylene terephthalate (PET) by bacterial and fungal isolates from soil samples collected at active dumpsites in Ogwa and Ebelle communities. Bacterial isolates, including Pseudomonas aeruginosa and Pseudomonas fluorescens, and the fungal isolate Aspergillus niger were identified. These microorganisms were screened for their ability to degrade LDPE and PET, using a minimal salt medium (MSM) supplemented with 0.1% powdered plastic as the sole carbon source for 14 days. The weight loss was determined through gravimetric analysis, and chemical changes in the plastics were assessed using Fourier-transform infrared (FTIR) spectroscopy. The results revealed that Pseudomonas aeruginosa and Aspergillus niger exhibited the highest degradation potentials, with weight loss percentages of 12.9 ± 0.5% and 14.6 ± 0.5% for LDPE, and 10.5 ± 0.4% and 11.3 ± 0.4% for PET, respectively. FTIR spectra showed significant modifications in functional groups (C=O stretching at 1710 cm⁻¹ and O-H stretching at 3400 cm⁻¹), indicating plastic degradation. These findings suggest that Pseudomonas aeruginosa, Pseudomonas fluorescens, and Aspergillus niger are promising candidates for enhancing plastic biodegradation, contributing to the development of sustainable environmental management strategies.
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Biodegradation of Low-Density Polyethylene and Polyethylene Terephthalate by Bacterial and Fungal Isolates from Active Dumpsites in Ogwa and Ebelle Communities of Esan Land
AI summary Read the abstract
Scientists found bacteria and a fungus living in dumpsite soil that can actually break down common plastics (like grocery bags and water bottles), eating away 11-15% of the plastic's weight in just two weeks. This matters because these plastics normally take hundreds of years to break down and often end up as microplastics in our food, water, and even our bodies—so harnessing these natural "plastic eaters" could offer a more sustainable way to clean up plastic waste before it fragments into the tiny particles linked to health concerns.
Biodegradation of low-density polyethylene (LDPE) and polyethylene terephthalate (PET) by indigenous bacterial isolates from dump yard soils
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Scientists found bacteria living in soil at plastic dump sites that can actually break down common plastics like water bottles (PET) and plastic bags (LDPE) — and when these bacteria teamed up in groups, they broke down plastic even faster (up to 61% for PET) than working alone. This matters because plastic waste doesn't just clog landfills — it breaks into microplastics that end up in our water, food, and even our bodies, so finding natural ways to break down plastic waste before it fragments could help reduce our overall exposure over time.
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Scientists found bacteria living in a municipal trash dump—including a type called Bacillus—that can break down plastic, eating away nearly half the weight of a plastic sample in just one month. This matters because plastic waste (and the microplastics it breaks into) is piling up in our environment, water, and even our bodies, so finding natural ways to break it down faster could help reduce our long-term exposure to it.
Evidence of Plastic Biodegradation Potential by a Fungal Isolate from a Sanitary Landfill in Davao Oriental
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Scientists found a fungus living in a Philippine landfill that can actually eat into plastic bags (LDPE), creating visible cracks, holes, and damage on the plastic's surface. This matters because plastic waste—and the microplastics it breaks down into—pollutes our environment and food chain, so finding natural organisms that break down plastic could offer a cheaper, eco-friendly way to tackle plastic pollution instead of letting it linger for decades. That said, this is early-stage research, so more testing is needed before this fungus becomes a real-world waste solution.
Microplastic Associated Microorganisms: Isolation, Identification and Assessment of Biofilm-Based Degradation Potential
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Scientists found naturally occurring bacteria and fungi living on microplastics in polluted soil and water that can actually break down these tiny plastic particles over time. This matters because microplastics are showing up everywhere—including in our food, water, and bodies—and these microbe-based cleanup methods could offer a more natural, sustainable way to reduce plastic pollution before it accumulates further in our environment and, potentially, our health.
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