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Genetically modified bacteria can transform common weeds into biofuels by lee ryan
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Genetically modified bacteria can transform common weeds into biofuels by LEE RYAN
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| Article Posted: 12/05/2011 |
| Article Views: 181 |
| Articles Written: 234 - MORE ARTICLES FROM THIS AUTHOR |
| Word Count: 458 |
| Article Votes: 0 |
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Genetically modified bacteria can transform common weeds into biofuels |
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Science & Technology,Environment,Business
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Recently, the U.S. Department of Energy Joint Bio Energy Institute researchers genetically engineered the first to create a switchgrass biomass can digest the E. coli (Escherichia coli bacteria), to transform its sugar into the replace gasoline, diesel and aviation fuel three kinds of transportation fuels and advanced bio-energy, but without adding any enzyme. Relevant papers published in the "U.S. National Academy of Sciences". E. coli normally can not grow on switchgrass, the researchers modified the bacterium so that it can express a variety of enzymes, which can digest cellulose or hemicellulose survival. Decomposition of cellulose and hemicellulose coli can also be cultured on switchgrass, and further designed three metabolic pathways, so that they can produce an alternative fuel or for gasoline, diesel and aviation engines of the early molecules. This is the first demonstration of E. coli can produce three forms of transportation fuels. In addition, plant cellulose, because hemicellulose is difficult to extract, the researchers used an ionic liquid (molten salt) pretreatment methods to dissolve biomass, then let escherichia coli digest dissolved biomass, output performance with fuel oil hydrocarbons. Papers lead author, postdoctoral fellow, Institute of the Joint Bio Energy Kinski explained that using ionic liquid to pretreat switchgrass is essential, they are a combination of ionic liquid pretreatment and transfer Jiyinaixi coli these two strategies . Non-food crops and agricultural waste cellulose processing of advanced fuel is considered to be the best renewable liquid transportation fuels, which can be used for the current engines and infrastructure, but the biggest obstacle is cost too high, and difficult to compete with other fuels. "We can reduce the processing cost of the largest part - adding enzyme depolymerization of cellulose and hemicellulose into fermentable sugars, Combining the two steps can reduce fuel production costs, for the use of lignocellulosic materials open the door to production of advanced biofuels. " Responsible for the study's co-CEO of the Institute bioenergy Jay • kiessling said. The team is also examining how to improve the production of synthetic fuels. Bojinsiji said: "We already have the path of fuel products can get even higher than the current demonstrated of production. We also need to find a enzyme secreted by the E. coli, while to digest more biomass treated by ionic liquid, or modified ionic liquid pretreatment step, let it more easily digested. " U.S. development of genetically modified bacteria believe in constant improvement will be soon able to bring the Gospel to the development of biofuels. Guangzhou Pengfa Biomass Energy Equipment Co.,Ltd is a manufacturer and supplier of biomass energy equipment export,Its main products are Pellet Mills,Screener / Sifter, Mixers and Air Cooler.We provides best service to their customers by good quality, beautiful design, reasonable price and prompt delivery.
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