New Discovery Could Improve Ethanol Production


Researchers at the Department of Energy’s (DOE) BioEnergy Science Center (BESC) have made a discovery that could increase the production of ethanol and lower its costs.

They say they have pinpointed the gene that controls ethanol production capacity in a microorganism, which could be the missing link in developing more efficient and cheaper biomass crops.

Current methods to make ethanol from a type of biomass found in switchgrass and agricultural waste require the addition of expensive enzymes to break down the plant’s barriers that guard energy-rich sugars. The gene discovered controls ethanol production in a microorganism known as “Clostridium thermocellum”. With it scientists will be able to experiment with genetically altering biomass plants to produce more ethanol.

“The Department of Energy relies on the scientific discoveries of its labs and research centers to improve the production of clean energy sources,” said Energy Secretary Steven Chu. “This discovery is an important step in developing biomass crops that could increase yield of ethanol, lower production costs and help reduce our reliance on imported oil.”

The Clostridium thermocellum has been studied for decades, but scientists so far had been unable to determine the genetic basis for its ability to tolerate higher concentrations of ethanol.

The research team used a multi-disciplinary approach thanks to the various types of expertise from those involved. The team’s results were published in the Proceedings of the National Academy of Sciences and the invention is available for licensing.

Article by Antonio Pasolini, a Brazilian writer and video art curator based in London, UK. He holds a BA in journalism and an MA in film and television.

About Author

Walter’s contributions to CleanTechies over the past 4 years have been instrumental in growing the publications social media channels via his ongoing editorial and data driven strategies. He is the founder and managing director of Sunflower Tax, a renewable energy tax and finance consultancy based in San Diego, California. Active in the San Diego clean technology community, participating in events sponsored by CleanTech San Diego, EcoTopics, and Cleantech Open San Diego, Walter has also been a presenter at numerous California Center for Sustainability (CCSE) programs. He currently serves as an adjunct professor at the University of San Diego School of Law where he teaches a course on energy taxation and policy.

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