Development of sustainable bioprocesses at ETH Zurich using fermSYS – VOC sensors
- Jul 22
- 2 min read
Dr. Sc. Philipp Keller (ETH Zurich), Dr. Karin Ammon (fermSYS GbR)
Engineering E. coli for a Circular Carbon Economy
The transition toward a circular economy requires sustainable alternatives to fossil-based feedstocks. One-carbon (C1) substrates, such as green methanol produced from biomass, industrial waste gases, or captured carbon dioxide, are emerging as promising building blocks for the future chemical industry. Their efficient biological conversion into valuable chemicals has the potential to significantly reduce the carbon footprint of industrial biotechnology.
At the Vorholt Lab at the Institute of Microbiology, ETH Zurich, researchers are pioneering this transformation by engineering the well-established industrial microorganism Escherichia coli to grow on methanol. These synthetic methylotrophic strains represent an important step toward establishing methanol as a renewable feedstock for biomanufacturing.
Optimizing Methanol-Based Bioprocesses
Engineering microorganisms to utilize methanol efficiently is a complex challenge. Besides metabolic engineering, successful process development requires precise control of methanol availability throughout cultivation. Methanol concentrations that are too low can limit cell growth, while excessive concentrations may negatively affect cellular performance and process stability.
To support this optimization, the Vorholt Lab integrates the fermSYS VOC sensor into their cultivation workflows. The sensor enables continuous monitoring of methanol consumption during fermentation, providing researchers with valuable real-time process data that would otherwise require labor-intensive offline analysis.
Continuous methanol monitoring allows the research team to:
Follow methanol consumption dynamics throughout cultivation.
Optimize methanol feeding strategies.
Compare the performance of different engineered methylotrophic E. coli strains.
Generate high-resolution process data to accelerate strain and process development.
Accelerating Sustainable Biomanufacturing
By combining advanced metabolic engineering with continuous process monitoring, the Vorholt Lab at ETH Zurich is helping unlock the potential of methanol as a sustainable carbon source for industrial biotechnology. The integration of the fermSYS VOC sensor provides an important analytical tool for advancing next-generation bioprocesses that contribute to a more circular and resource-efficient bioeconomy.
We are proud to support researchers at ETH Zurich with real-time sensing technology that enables smarter fermentation processes and accelerates innovation in sustainable biotechnology.