Brazil: Development of technology for producing plastics from bagasse ethanol

Brazil is the world's main producer of plant ethanol, mainly using sugar cane to produce ethanol. With the increase of ethanol production, there is an increasing need to strengthen the use of ethanol to process new products and the use of bagasse for the extraction of ethanol.

According to reports by Brazilian media, the São Paulo Foundation for Research and the University of São Paulo are actively promoting the production of polyhydroxyalkanoates (PHA) from sugarcane ethanol or bagasse ethanol, a degradable bioplastic that can be used in plant residues. Fermented to make.

Scientists from the University of Sao Paulo's School of Biomedical Sciences pointed out that Brazil has accumulated 20 years of experience in producing polyhydroxyalkanoate esters, has good scientific research results and a series of patented products, and has favorable conditions for further promoting the use of ethanol.

Researchers point out that raw materials with plastic properties and elasticity can be obtained by using a kind of bacteria and an agricultural renewable raw material such as sugar cane, soybean or its waste. This is a kind of biodegradable plastics produced from renewable materials. Its wide use can replace petrochemical plastics to a certain degree, and it can obtain huge environmental benefits. In addition, the bioplastic polyhydroxyalkanoate is also biocompatible and can be used for human and animal tissues without producing repellency. For example, it can be considered to produce pharmaceutical capsules.

Other bio-based products can use xylose in the production of ethanol. At present, a group of researchers are studying how to use yeast to produce sugarcane ethanol, and also use xylose to utilize bagasse. The production of ethanol from sugar cane bagasse or other plant fibers is already a second-generation biofuel, which is different from the first-generation biofuels, namely the yeast used to produce ethanol from sugar cane. (Reporter Zhang Xinsheng)

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