Microbial Biotechnologies for Plastic Degradation, Depolymerization and Valorization

Microbial biotechnologies for plastic degradation, depolymerization, and valorisation represent a burgeoning field with significant potential for addressing the global plastic waste crisis. The use of microbial processes to enzymatically degrade plastics offers a promising solution to the persistent problem of plastic pollution. Current research has demonstrated that microbial catalysts can break down recalcitrant plastic polymers into manageable and recyclable degradation products. This approach not only provides an eco-friendly alternative to traditional plastic disposal methods but also aligns with the principles of a circular economy by potentially transforming waste into valuable resources. Despite these advancements, there remain substantial gaps in our understanding of the mechanistic details of microbial depolymerization and the scalability of these bioprocesses. Addressing these gaps is crucial for the development of sustainable and economically viable plastic waste management strategies.

This research topic aims to advance the field of microbial technologies for plastic degradation by fostering fundamental and applied research. The primary objectives include elucidating the mechanistic details of microbial depolymerization of recalcitrant plastics and evaluating the potential for scaling up well-understood bioprocesses. Specific questions to be addressed include: What are the key enzymes and microbial pathways involved in plastic degradation? How can these processes be optimized for industrial-scale applications? What are the techno-economic and environmental impacts of implementing these microbial technologies on a large scale? By answering these questions, the research aims to contribute to the development of innovative, sustainable, and economically viable solutions for plastic waste management.

To gather further insights into the boundaries of microbial biotechnologies for plastic degradation, we welcome articles addressing, but not limited to, the following themes:
- Innovative microbial biotechnologies for recycling polymers and valorising degradation products.
- Microbial bioengineering for more sustainable recycling of polymers, including novel microbial technologies, microbial consortia, and enzymes related to industrial-scale applications.
- Multidisciplinary and cross-functional studies that complement microbial biotechnology with chemical or physical approaches, such as catalysis or separations.
- Studies that include scale-up techno-economic analyses and life cycle assessments.

Both original research articles, perspectives, and reviews are welcome to contribute to this comprehensive exploration of microbial biotechnologies for plastic degradation.

Keywords: Plastics, Biotechnology, Depolymerization, Degradation, Upcycling, Valorization

Important Note: All contributions to this Research Topic must be within the scope of the section and journal to which they are submitted, as defined in their mission statements. Frontiers reserves the right to guide an out-of-scope manuscript to a more suitable section or journal at any stage of peer review.