Soon, we will be able to replace fossil fuels with a carbon-neutral product produced by solar energy, carbon dioxide, and water. Researchers at Uppsala University have successfully created a microorganism that can efficiently produce ethanol butanol using carbon dioxide and solar energy without using solar cells.
The research was published in the scientific journal Energy and Environmental Science.
We systematically designed and created a series of modified cyanobacteria that gradually produce more and more butanol in the direct process. When the best cells are used in long-term laboratory experiments, we see production levels that exceed those reported in existing articles. In addition, Pia Lindberg, a senior lecturer in the Department of Chemistry Angstrom Laboratory at Uppsala University, said that this process is comparable to indirect processes. In the indirect process, bacteria are fed sugar.
With the advancement of science and technology, the advancement of synthetic biology, the change of genes, the knowledge and ability of cyanobacteria are constantly emerging, cyanobacteria can produce a variety of chemicals from carbon dioxide and solar energy. Through the development of technology, the combination of systematic methods and discoveries, as more products are removed from cyanobacteria and more butanol is formed, research indicates the way forward to achieve this concept.
It is possible to achieve higher output
We already know that it is possible to produce butanol by this method (proof of concept). The researchers can now prove that it is possible to achieve higher yields, so high that they can be used for production. In fact, butanol can be used in the automotive industry as an environmentally friendly automotive fuel (fourth-generation biofuel) and an environmentally friendly component of tire rubber. In both cases, fossil fuels have been replaced by a carbon-neutral product produced from solar energy, carbon dioxide, and water.
In all industries, even larger industries, industries that currently generate high greenhouse gas emissions from carbon dioxide will be able to use the process of combining cyanobacteria with carbon dioxide, thereby significantly reducing their emissions.
Microscopic cyanobacteria are the most effective photosynthetic organisms on earth. In this study, we use their ability to effectively capture the energy of the sun and combine it with carbon dioxide in the air. Together with all the tools, we must modify the cyanobacteria to produce the ideal product. Professor Peter of the Department of Chemistry Angstrom Laboratory at Uppsala University is the project leader.
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