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Progress and Prospects of Microplastic Biodegradation Processes and Mechanisms: A Bibliometric Analysis
Yingnan Cao1, Jing Bian1, Yunping Han2,3
1Key Laboratory of Environmental Pollution Control and Remediation at Universities of Inner Mongolia Autonomous Region, College of Resources and Environmental Engineering, Inner Mongolia University of Technology, Hohhot 010051, China.
Microplastic biodegradation research has surged, with bacteria and fungi identified as key players. Studies focus on screening microbes and enzymes to understand degradation mechanisms, offering insights for future research.
Area of Science:
- Environmental Science
- Microbiology
- Biotechnology
Background:
- Microplastic pollution is a growing global concern.
- Understanding biodegradation pathways is crucial for environmental remediation.
Purpose of the Study:
- To visualize the research landscape of microplastic biodegradation.
- To review biodegradation processes and mechanisms.
Main Methods:
- Bibliometric and visual analysis of publications from 2012-2022.
- Searches in major scientific databases (ACS, Elsevier, Springer Link, ASM).
Main Results:
- Significant increase in publications, peaking in 2020-2021.
- Top institutions: UCAS, NWAFU, CAAS. Top countries: China, USA, India.
- Focus on screening functional microorganisms (bacteria, fungi) and enzymes (hydrolase, oxidative, depolymerization).
Conclusions:
- Microbial degradation involves colonization, biofilm retention, and bioenzymatic processes.
- Identified key microbial groups and enzymes involved in microplastic breakdown.
- Highlights current challenges and future research directions in microplastic biodegradation.
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