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Enzyme-Embedded Biodegradable Plastic for Sustainable Applications: Advances, Challenges, and Perspectives
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This review evaluates enzyme-embedded biodegradable plastics as a next-generation alternative to conventional synthetic plastics, finding that incorporating specific enzymes into biodegradable polymers like PLA and PHA accelerates degradation under real-world conditions such as soil and marine environments where standard biodegradable plastics often fall short.
Global plastic production is increasing yearly, with packaging materials and disposable plastics accounting for a sizable portion of the total. Despite its apparent advantages, the resulting plastic waste accumulates in landfills and oceans, causing severe environmental and public health issues. Shifting from conventional plastics to biodegradable plastics (BPs) is increasingly being proposed as an efficient management of end-of-life plastics. While several BPs such as poly(lactic acid), poly(ε-caprolactone), and poly(hydroxyalkanoates) have been widely used, their biodegradation rates often do not meet the anticipated level under home-compost or other certain environments (e.g., soil, marine). Recently, enzyme-embedded BPs have emerged as an outstanding alternative to currently used synthetic plastics. It achieves rapid degradation and compostability by introducing a specific enzyme into the biodegradable polymer. In this context, this review aims to summarize the recent advances in the development of such superior biomaterials. It identifies and prioritizes the critical success factors required for the production of enzyme-embedded BPs. The review also discusses several challenges in the development and application of these innovative polymer materials.
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Researchers reviewed enzyme-embedding as a strategy for creating truly biodegradable plastics, showing that incorporating cutinases and lipases directly into polyester matrices like PLA and PBAT accelerates environmental breakdown while preserving mechanical properties — with melt-blending and stabilization techniques like PEGylation enabling enzyme survival during high-temperature industrial manufacturing.
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This review examines microbial enzymes that have demonstrated the ability to break down synthetic plastics, a process that could offer a biological route to plastic waste remediation. The paper surveys the range of enzyme types, the plastic substrates they target, and the mechanisms by which they degrade polymer chains. Understanding these enzymatic pathways is a critical step toward engineering scalable biocatalytic solutions for plastic biodegradation.
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This review provides a comprehensive overview of plastic biodegradation as a sustainable strategy for managing plastic waste accumulation. Researchers surveyed recent breakthroughs in identifying microorganisms and enzymes capable of breaking down various plastic polymers under relatively mild conditions. The study highlights that while biodegradation shows promise as an eco-friendly alternative to conventional waste management, significant challenges remain in scaling these approaches for practical application.
Innovative biotechnological approaches for plastic degradation: A pathway to sustainable waste management
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This review examines biotechnological approaches to plastic degradation, highlighting enzymes such as PETase, MHETase, laccases, and lipases as promising tools for breaking down recalcitrant synthetic polymers. The authors identify key challenges including degradation efficiency, economic scale-up, and regulatory barriers to using genetically modified organisms in industrial applications.
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This review clarifies definitions and misconceptions around biodegradable plastics, noting that "biodegradable" labeling is often misunderstood by consumers to mean degradation under any conditions. It surveys analytical standards, existing biodegradable polymer types, and how biomass-derived monomers with oxygen-containing functional groups may enable a new generation of high-performance, environmentally beneficial plastics.
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