Related Experiment Video
Updated: Mar 14, 2026
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Biomass Conversion to Produce Hydrocarbon Liquid Fuel Via Hot-vapor Filtered Fast Pyrolysis and Catalytic Hydrotreating
Published on: December 25, 2016
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Efficient Synthesis of Pyruvic Acid from Biomass based on Gas-Liquid-Solid Triphase Bioelectrochemical Cascade
Lihui Huang1, Siyu Zou2, MengLi Zeng1
1State Key Laboratory of Bioinspired Interfacial Materials Science, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, China.
Chemsuschem
|March 12, 2026
Summary
This study introduces a novel triphase bioelectrochemical system for sustainable pyruvic acid (PyA) production from lactic acid (LA). The system enhances oxygen supply and removes hydrogen peroxide, significantly boosting PyA biosynthesis efficiency.
Area of Science:
- Biocatalysis and Green Chemistry
- Bioelectrochemical Systems
- Sustainable Synthesis
Background:
- Enzymatic synthesis of pyruvic acid (PyA) from lactic acid (LA) offers a sustainable route but faces challenges.
- Insufficient oxygen mass transfer and byproduct hydrogen peroxide (H₂O₂) limit reaction efficiency and cause PyA degradation.
Purpose of the Study:
- To develop a novel gas-liquid-solid triphase bioelectrochemical system to overcome limitations in enzymatic PyA synthesis.
- To enhance oxygen supply and mitigate PyA degradation by in situ H₂O₂ electro-oxidation.
Main Methods:
- A triphase bioelectrochemical reaction system integrating lactate oxidase (LOx) was designed.
- Oxygen mass transfer was improved by utilizing an air phase.
- In situ electro-oxidation was employed to remove H₂O₂.
Main Results:
- The system achieved a significantly higher production rate (54.34 µM h⁻¹ U⁻¹) compared to conventional systems (63-fold increase).
- Mathematical modeling and electrochemical studies confirmed enhanced local O₂ levels and efficient H₂O₂ removal as key factors.
- The system demonstrated effective PyA biosynthesis under mild conditions.
Conclusions:
- The developed triphase bioelectrochemical system provides a sustainable and highly efficient method for PyA biosynthesis.
- Engineered bioelectrocatalytic environments show significant potential for advancing green synthesis applications.
- This approach addresses critical challenges in enzymatic synthesis, paving the way for industrial scalability.
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