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Synthesis of starch from carbon dioxide

06.10.2021

Chinese scientists were the first in the world to develop a method for the artificial synthesis of starch from carbon dioxide.

Starch is an essential component of cereals and is usually produced during photosynthesis. The process of starch synthesis in nature includes about 60 biochemical reactions and complex physiological regulation.

The research team has developed a way to artificially synthesize starch with just 11 basic reactions, achieving the first complete synthesis from carbon dioxide to starch molecules in the lab. The structure of synthetic starch is exactly the same as the structure of natural starch.

The efficiency of synthetic starch production is about 8,5 times that of traditional agricultural starch production.

According to the current technical parameters, the annual production of starch in a bioreactor with a capacity of one cubic meter is theoretically equivalent to the amount of starch obtained from an annual crop of a corn field in China with an area of ​​approximately 0,3 hectares, excluding energy costs.

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Random news from the Archive

The hippocampus helps you navigate in space 05.06.2016

Scientists from the RIKEN Brain Science Institute (Japan), led by Thomas McHugh and Steven Middleton, studied the work of the hippocampus of laboratory mice and found out that it is he who allows the animal to determine its location in the environment and play the role of a kind of mental map, in which spatial information is "inscribed". The experiment showed that this map is quite easy to damage and leave the animal at a loss about where it is and where it is going - it is only necessary to destroy the neural connections between the zones of the hippocampus.

McHugh's team determined that the main role in the formation of an idea of ​​the environment in mice is played by neural impulses emanating from the CA3 zone of the hippocampus to other zones, in particular, to CA1, which directly depends on them (there are only four zones in the hippocampus - CA1, CA2, CAZ and CA 4. The abbreviation CA is from the Latin Cornu Ammonis "Ammon's horn"). The key to constant updating of the spatial map is the rhythmic flow of such impulses.

To study the consequences that would arise if there was a violation of the uniform flow of synaptic impulses from the SAZ to other areas of the hippocampus, scientists introduced neurotoxins into the SAZ, which “drowned out” the signals emanating from it. The result was a loss of orientation in space, a violation of the mental map and "entanglement" - the animal ceased to determine its location and could not assess the environment.

It became clear that correct orientation on the ground directly depends on the ability of the hippocampus to systematically form and maintain synaptic connections between areas - this does not allow errors in neural impulses to mix and destroy spatial information, including in sleep.

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