According to Taiwan media on January 10, reducing carbon dioxide in the atmosphere is a major challenge to slowing or even reversing global warming. Therefore, low-carbon electricity, power conservation, and carbon storage (CCD) are currently considered as three major issues that need to be carried out. Sequestering carbon dioxide is a technical challenge. Recently, in order to solve this problem, scientists proposed using E. coli to convert carbon dioxide into easily processed formic acid.
The current method of carbon sequestration is mainly to bury carbon dioxide deep into the ground. It will crystallize with underground minerals into carbonated ores, with little impact on the environment. However, the deep underground burial method requires special geological structures, so we need more kinds of treatments.
Recently, Professor Frank Sargent of the School of Life Sciences at the University of Dundee in Scotland and local industry companies Sasol UK and Ingenza Ltd have developed a method to use E. coli to metabolize carbon dioxide. Carbon dioxide storage problem.
Prof Sachett said: "Reducing carbon dioxide emissions requires many different solutions. Nature has provided us with some options very early on, because organisms started from an anaerobic environment from the outset. Single-celled bacteria often live in extreme conditions. In the environment, and special chemical reactions that plants and animals can't do."
E. coli is a typical example. It can live in an oxygen-free environment, and it will create a special enzyme called FHL, which converts gaseous carbon dioxide into liquid formic acid, making it easy to store, control, and even use.
However, the normal conversion process is slow and unreliable. So scientists try various environments and hope that E. coli can quickly handle carbon dioxide. They found that when E. coli is in a mixture of carbon dioxide and hydrogen at a pressure of 10 times atmospheric pressure, the reaction rate becomes very fast and can be completed within a few hours.
Professor Sarget said: "This is an important breakthrough in the field of biotechnology. We are further improving the system, making it a factory from the laboratory and eventually becoming a carbon dioxide-eliminating bacterial factory."
According to the report, E. coli is one of the most common bacteria. It exists in the human intestine and usually coexists with the intestinal tract. However, if there is too much coliform, it will cause stomach pain and diarrhea. Therefore, the quantity of E. coli is water quality. Safety standards, excessive coliforms indicate poor water quality. In addition, there are some E.coli toxic, such as O157 coliform bacteria will produce strong toxins, leading to a very dangerous hemorrhagic intestinal disease. But as long as it is used properly, coliform can also save the planet.
Professor Sarget said: "The most important effect of this study is that it can be industrialized, it does not need to find a suitable geological environment to perform carbon sequestration, and formic acid has industrial applications. It is a preservative and antibacterial agent in feed. It is also a detergence agent for the leather industry, and it can also be used to synthesize airport runway deicing agents and other uses to make new use of carbon dioxide." (Internship Editor: Zhou Simin Audit: Tian Ruizhe)
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