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A Review of Bioelectrochemical Strategies for Enhanced Polyhydroxyalkanoate Production
Alejandro Chamizo-Ampudia1,2, Raúl M Alonso3, Luisa Ariza-Carmona4
1Biochemistry, Department of Molecular Biology, University of León, 24071 León, Spain.
Bioengineering (Basel, Switzerland)
|June 26, 2025
Summary
Bioelectrochemical technologies offer a sustainable and cost-effective method for producing polyhydroxyalkanoates (PHAs). This approach enhances PHA yield using diverse waste streams, paving the way for industrial applications.
Area of Science:
- Biotechnology
- Sustainable Materials Science
- Chemical Engineering
Background:
- Growing demand for sustainable bioplastics like polyhydroxyalkanoates (PHAs).
- Need for efficient and cost-effective PHA production methods.
- Emergence of bioelectrochemical technologies (BES) as a promising strategy.
Purpose of the Study:
- To review advancements in bioelectrochemical PHA synthesis.
- To highlight the advantages of BES for PHA production.
- To discuss challenges and future directions for industrial application.
Main Methods:
- Overview of various bioelectrochemical systems (BES) and electrode materials.
- Discussion of microbial strategies for PHA biosynthesis.
- Focus on electrode potentials and microbial electron transfer mechanisms.
Main Results:
- BES enhance PHA production rates and yield.
- Ability to utilize diverse substrates, including agro-industrial waste.
- Reduced costs and improved productivity through process integration.
Conclusions:
- Bioelectrochemical PHA synthesis offers a sustainable route for bioplastics.
- Integration of BES with waste streams maximizes efficiency.
- Further optimization of reactor design and electron transfer is needed for scale-up.
