Japanese application of transgenic microorganisms to make succinic acid from waste paper

The Environmental Industry Technology Research Institute successfully used succinic acid for the removal of succinic acid from waste paper using genetically modified microorganisms, which reduced the production cost of succinic acid by 90%.

According to reports, this microorganism, Corynebacterium, can break down sugars into pyruvic acid, and the agency uses transgenic technology to implant genes containing certain enzymes in Corynebacterium. Therefore, treated coryneform bacteria have carbon dioxide. The ability to combine carbon and pyruvate can ultimately synthesize succinate. The process consists of decomposing waste paper into sugar and other substances with an acid solution and an enzyme, and then using the above-mentioned transgenic microorganism and adding carbon dioxide to culture at 35 degrees Celsius, and finally obtaining about 30 g per liter of the culture liquid. Succinic acid.

Succinic acid is an important polymer compound in the industry and can be used to make fibers for degradable plastics and electronic products. The current market demand is increasing. However, the usual production methods are inefficient and costly. The price per kilogram of products is as high as several tens of dollars. New technologies can reduce production costs to less than $1 per kilogram.

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