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Current Advances in Biodegradation of Polyolefins
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This review summarized recent advances in microbial and enzymatic biodegradation of polyolefin plastics (PE, PP, PS), cataloguing known degrading strains and the enzymes responsible. While biodegradation rates remain slow compared to conventional chemical methods, advances in synthetic biology and enzyme engineering were identified as promising paths toward practical polyolefin biodegradation.
Polyolefins, including polyethylene (PE), polypropylene (PP) and polystyrene (PS), are widely used plastics in our daily life. The excessive use of plastics and improper handling methods cause considerable pollution in the environment, as well as waste of energy. The biodegradation of polyolefins seems to be an environmentally friendly and low-energy consumption method for plastics degradation. Many strains that could degrade polyolefins have been isolated from the environment. Some enzymes have also been identified with the function of polyolefin degradation. With the development of synthetic biology and metabolic engineering strategies, engineered strains could be used to degrade plastics. This review summarizes the current advances in polyolefin degradation, including isolated and engineered strains, enzymes and related pathways. Furthermore, a novel strategy for polyolefin degradation by artificial microbial consortia is proposed, which would be helpful for the efficient degradation of polyolefin.
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Review of key issues and potential strategies in bio-degradation of polyolefins
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This review examines the challenges of biodegrading polyolefins — the most widely used plastics — highlighting the limited number of known degrading enzymes, their poor efficiency, and incomplete understanding of their catalytic mechanisms, with incomplete degradation itself producing microplastics. The review argues that multienzyme systems and better mechanistic understanding are needed before biological polyolefin degradation can become a practical waste management tool.
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Researchers reviewed microbial biodegradation of synthetic plastics — including PE, PP, PS, and PET — cataloguing the insects, bacteria, and fungi capable of breaking down these polymers along with the enzymatic mechanisms involved, and outlining paths forward including metabolic pathway engineering and molecular cloning to improve degradation rates.
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This review synthesizes current knowledge on microbial plastic degradation, covering the enzymes and metabolic pathways involved in breaking down major synthetic polymers, the challenges limiting efficient biodegradation, and perspectives for engineering improved microbial solutions to plastic waste.
Role of Various Microbes and Their Enzymatic Mechanisms for Biodegradation of Microplastics
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This review examines the microbial enzymes and degradation mechanisms responsible for biodegrading microplastic polymers, covering bacterial, fungal, and algal systems that have evolved plastic-degrading capabilities over the past 150 years of plastic production. The authors survey the most promising enzymatic pathways and organisms for biotechnological application in microplastic remediation.
Microbial and Enzymatic Degradation of Synthetic Plastics
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This review examines microorganisms and enzymes that show promise for breaking down common synthetic plastics like polyethylene, PET, and polystyrene. While natural biodegradation of these materials is extremely slow, researchers have identified certain bacteria, fungi, and enzymes that can accelerate the process, pointing toward potential biological solutions for plastic pollution.
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When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.