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Updated: Jul 6, 2025
14:53
Techniques for the Evolution of Robust Pentose-fermenting Yeast for Bioconversion of Lignocellulose to Ethanol
Published on: October 24, 2016
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Methanol bioconversion into C3, C4, and C5 platform chemicals by the yeast Ogataea polymorpha
Katrin Wefelmeier1, Simone Schmitz1, Benjamin Jonas Kösters1
1iAMB - Institute of Applied Microbiology, ABBt - Aachen Biology and Biotechnology, RWTH Aachen University, Worringerweg 1, D-52074, Aachen, Germany.
Microbial Cell Factories
|January 3, 2024
Summary
The methylotrophic yeast Ogataea polymorpha was engineered to produce platform chemicals from methanol, a sustainable feedstock. This study demonstrates its potential as a versatile cell factory for biochemical production.
Area of Science:
- Biotechnology
- Metabolic Engineering
- Synthetic Biology
Background:
- Methanol, a one-carbon (C1) molecule, is a sustainable feedstock derived from CO2 and green hydrogen.
- Methylotrophic yeasts, like Ogataea polymorpha, are potential hosts for biotechnological production using C1 compounds.
- Platform chemicals are crucial for various industries, and their sustainable production is a key goal.
Purpose of the Study:
- To investigate the suitability of Ogataea polymorpha for producing platform chemicals from methanol.
- To engineer O. polymorpha for the biosynthesis of acetone, malate, and isoprene.
- To demonstrate the production of compounds with 3, 4, and 5 carbon atoms using methanol as a carbon source.
Main Methods:
- Metabolic engineering of Ogataea polymorpha.
- Cultivation optimization including pH regulation and substrate feeding.
- Fermentation process development in shake flasks.
Main Results:
- Successful engineering of O. polymorpha for acetone, malate, and isoprene production from methanol.
- Achieved a maximum malate titer of 13 g/L with a production rate of 3.3 g/L/d.
- Demonstrated production of acetone (13.6 mg/L) and isoprene (4.4 mg/L).
Conclusions:
- Ogataea polymorpha shows potential as a versatile cell factory for producing biochemicals from methanol.
- This study contributes to understanding methylotrophic yeast applications for low molecular weight biochemicals.
- Findings provide a reference for future metabolic engineering and process optimization in O. polymorpha for renewable C1 sources.
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