Deconstructing PET: Advances in enzyme engineering for sustainable plastic degradation

Yao, Jiaxin; Liu, Yao; Gu, Zhenghua; Zhang, Liang; Guo, Zhongpeng

doi:10.1016/j.cej.2024.154183

Chemical Engineering Journal

2024

DOI: 10.1016/j.cej.2024.154183

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Deconstructing PET: Advances in enzyme engineering for sustainable plastic degradation

Jiaxin Yao,

Yao Liu,

Zhenghua Gu

et al.

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Cited by 4 publications

References 160 publications

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Towards polyethylene terephthalate valorisation into PHB using an engineered Comamonas testosteroni strain

Molpeceres-García,

Sanz-Mata,

García-Miro

et al. 2025

New Biotechnology

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Towards polyethylene terephthalate valorisation into PHB using an engineered Comamonas testosteroni strain

Molpeceres-García,

Sanz-Mata,

García-Miro

et al. 2025

New Biotechnology

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A Comparative Review on Biodegradation of Poly(Lactic Acid) in Soil, Compost, Water, and Wastewater Environments: Incorporating Mathematical Modeling Perspectives

Hajilou,

Mostafayi,

Yarin

et al. 2024

AppliedChem

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As the demand for environmentally friendly materials continues to rise, poly(lactic acid) (PLA) has emerged as a promising alternative to traditional plastics. The present review offers a comprehensive analysis of the biodegradation behavior of PLA in diverse environmental settings, with a specific focus on soil, compost, water, and wastewater environments. The review presents an in-depth comparison of the degradation pathways and kinetics of PLA from 1990 to 2024. As the presence of different microorganisms in diverse environments can affect the mechanism and rate of biodegradation, it should be considered with comprehensive comparisons. It is shown that the mechanism of PLA biodegradation in soil and compost is that of enzymatic degradation, while the dominant mechanisms of degradation in water and wastewater are hydrolysis and biofilm formation, respectively. PLA reveals a sequence of biodegradation rates, with compost showing the fastest degradation, followed by soil, wastewater, accelerated landfill environments, and water environments, in descending order. In addition, mathematical models of PLA degradation were reviewed here. Ultimately, the review contributes to a broader understanding of the ecological impact of PLA, facilitating informed decision-making toward a more sustainable future.

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Plastic-Degrading Enzymes from Marine Microorganisms and Their Potential Value in Recycling Technologies

Ruginescu,

Purcarea

2024

Marine Drugs

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Since the 2005 discovery of the first enzyme capable of depolymerizing polyethylene terephthalate (PET), an aromatic polyester once thought to be enzymatically inert, extensive research has been undertaken to identify and engineer new biocatalysts for plastic degradation. This effort was directed toward developing efficient enzymatic recycling technologies that could overcome the limitations of mechanical and chemical methods. These enzymes are versatile molecules obtained from microorganisms living in various environments, including soil, compost, surface seawater, and extreme habitats such as hot springs, hydrothermal vents, deep-sea regions, and Antarctic seawater. Among various plastics, PET and polylactic acid (PLA) have been the primary focus of enzymatic depolymerization research, greatly enhancing our knowledge of enzymes that degrade these specific polymers. They often display unique catalytic properties that reflect their particular ecological niches. This review explores recent advancements in marine-derived enzymes that can depolymerize synthetic plastic polymers, emphasizing their structural and functional features that influence the efficiency of these catalysts in biorecycling processes. Current status and future perspectives of enzymatic plastic depolymerization are also discussed, with a focus on the underexplored marine enzymatic resources.

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Deconstructing PET: Advances in enzyme engineering for sustainable plastic degradation

Cited by 4 publications

References 160 publications

Towards polyethylene terephthalate valorisation into PHB using an engineered Comamonas testosteroni strain

Towards polyethylene terephthalate valorisation into PHB using an engineered Comamonas testosteroni strain

A Comparative Review on Biodegradation of Poly(Lactic Acid) in Soil, Compost, Water, and Wastewater Environments: Incorporating Mathematical Modeling Perspectives

Plastic-Degrading Enzymes from Marine Microorganisms and Their Potential Value in Recycling Technologies

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