A team of researchers from Dartmouth’s Thayer School of Engineering and Mascoma Corporation say they have found a way to produce genetically engineered bacteria that ferment cellulose to produce ethanol more efficiently.
The group reported last week that, tor the first time, they have been able to genetically engineer a thermophilic bacterium, capable of growing at high temperatures, and this new microorganism makes ethanol as the only product of its fermentation.
“Our discovery is one potential avenue for research to facilitate turning inedible cellulosic biomass, including wood, grass, and various waste materials, into ethanol,” said Dartmouth engineering professor Lee Lynd. “In the near term, the thermophilic bacterium we have developed is advantageous, because costly cellulase enzymes typically used for ethanol production can be augmented with the less expensive, genetically engineered new organism.”
Lynd explains that this discovery is only the first step for future development of ethanol-producing microbes that can make ethanol from cellulosic biomass without adding enzymes. Lynd is the corresponding author on the study and the chief scientific officer and co-founder of Mascoma Corporation, a company working to develop processes to make cellulosic ethanol.


The Biomass Program works with industry, academia and national laboratory partners on a portfolio of research in biomass feedstocks and conversion technologies. Through research, development, and demonstration efforts geared at the development of integrated biorefineries, the Biomass Program helps transform the nation’s renewable and abundant biomass resources into cost competitive, high performance biofuels, bioproducts, and biopower. Among its goals is focusing research and development efforts to ensure that cellulosic ethanol is cost competitive by 2012.
Corn grower associations in South Dakota and Kansas have joined with the
A $14.7 million grant from the state of Iowa was welcome news last week to the company working on a commercial cellulosic ethanol project in the state.
In addition to the $14.7 million that was approved Wednesday, the State of Iowa has awarded another $5.2 million in Economic Development funds. The total amount of funds from the State of Iowa is $20 million. Iowa Lieutenant Governor Patty Judge said the funding insures that Iowa will continue to be a leader in renewable fuels innovation. “The new POET facility in Emmetsburg will be one of the first in the nation to produce cellulosic ethanol.” Judge said. “This represents the next generation in biofuels, and another step towards energy independence.”

This week I’ve had the opportunity to visit the Ohio State University’s annual
Senate Majority Leader Harry Reid (D-Nev.) is holding votes on four separate energy bills, possibly starting as early as tomorrow (Thursday, Sept. 18th), as lawmakers hit the final week before they go on their fall recess starting Sept. 26. 
The U.S. House has approved a measure that will renew some tax credits for wind and solar power that were set to expire at the end of this year, as well as allowing more drilling for offshore oil.