ArticleBioresources and bioprocessing2025
Promoting bacterial colonization and biofilm formation for enhanced biodegradation of low-density polyethylene microplastics.
Article in Bioresources and bioprocessing, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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The trial behind it
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Who cites it
4 citing papers in PubMed.
- An Evidence-Level Framework for Evaluating Enzyme-Mediated Plastic and Microplastic Transformation.Microorganisms · 2026Review
- Advances in polyethylene biodegradation and bioconversion: Microbial, enzymatic, and biotechnological insights.Engineering microbiology · 2026Review
- Surface bio-erosion and structural alteration of colored and agricultural plastics induced byFrontiers in microbiology · 2026Article
- Comparative proteomic profile of Aspergillus niger in response to polytetrafluoroethylene and irradiated polytetrafluoroethylene for enhanced bioremoval.Biodegradation · 2025Article
Corrections and comments
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The accumulation of plastic waste presents a significant worldwide environmental challenge. This study aimed to isolate polyethylene-degrading bacteria from marine samples containing plastic waste. Four culturable bacterial isolates: Micrococcus luteus, Bacillus cereus, Enterococcus faecalis, and Actinomyces sp. were assessed for their biofilm formation, biosurfactant, and protease production. Gamma irradiation was used to induce structural changes and promote bacterial colonization and biofilm formation on low-density polyethylene microplastics (LDPE MPs). Optimal biofilm formation was achieved in minimal media supplemented with 30% tryptic soy broth, 10% biosurfactant, and 300 µM calcium chloride. The factorial design experiment demonstrated that adding media supplementation significantly improved bacterial colonization and biofilm formation when compared to gamma irradiation. This was supported with Scanning Electron Microscopy (SEM), Energy Dispersive X-ray (EDX) mapping, and Fourier Transform Infrared Spectroscopy (FTIR). The optimized LDPE MP degradation was achieved through a multi-step protocol: (1) samples are pre-treated to 40 kGy gamma irradiation, which resulted in 5.7% Gravimetric weight loss and structural and morphological changes, (2) incubation in biofilm inducing media overnight, and (3) further incubation in minimal media for 30 days. This approach resulted in a total weight loss of 22.5%. In conclusion, synergistic pre-treatment is recommended to promote biofilm and improve biodegradation of LDPE MPs by marine bacteria.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.