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Updated: Mar 17, 2026

Forming Micro-and Nano-Plastics from Agricultural Plastic Films for Employment in Fundamental Research Studies

Forming Micro-and Nano-Plastics from Agricultural Plastic Films for Employment in Fundamental Research Studies

Published on: July 27, 2022

Microplastic biodegradation and environmental safety: From microbial mechanisms to engineered systems and circular

Haixin Jiao¹, Rania Al-Tohamy², Min Xiong²

¹School of Environmental Science and Engineering, Yancheng Institute of Technology, Yancheng 224051, China; Biofuels Institute, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China.

Ecotoxicology and Environmental Safety

|March 15, 2026

Summary

Microbial biodegradation offers a promising solution for microplastic pollution, transforming plastic particles into less harmful substances. However, challenges remain in achieving complete degradation and assessing ecological risks.

Keywords:

Circular bioeconomy Genetically modified microorganisms Microbial consortia Microplastic biodegradation Plastic-degrading enzymes Synthetic biology

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Aerobic Biodegradation Testing of Materials Using a Natural Marine Seawater Inoculum and Closed Loop Respirometer

Published on: October 24, 2025

Area of Science:

Environmental Science
Biotechnology
Polymer Science

Background:

Microplastics (<5 mm) are persistent environmental contaminants due to their stability and resistance to conventional removal methods.
Microbial and enzymatic degradation are emerging as viable strategies for microplastic transformation, but complete mineralization is not consistently achieved.
Incomplete depolymerization can yield intermediate products with unknown ecological impacts.

Purpose of the Study:

To provide a mechanistically integrated analysis of microplastic biodegradation.
To examine factors influencing degradation, including abiotic preconditioning, enzyme-polymer interactions, and microbial community dynamics.
To critically assess environmental safety and the integration of biodegradation into circular recycling frameworks.

Main Methods:

Review of current literature on microplastic biodegradation mechanisms.
Analysis of surface modification, depolymerization, biotransformation, and mineralization processes.
Examination of microbial systems (single strains, consortia, engineered systems) and their roles.

Main Results:

Biodegradation outcomes are highly variable, influenced by polymer type, environmental conditions, and microbial consortia.
Advances in enzyme engineering enhance depolymerization efficiency under controlled settings.
Environmental safety concerns include byproducts, additive release, and horizontal gene transfer risks.

Conclusions:

Microbial biodegradation presents a promising avenue for mitigating microplastic pollution.
Scalability, regulatory compliance, and ecosystem-level risk assessment are critical challenges for practical implementation.
Integrating mechanistic understanding with environmental realism and regulatory preparedness is essential for safe and effective microplastic biodegradation.