Navigation Links
UGA researchers develop 'super' yeast that turns pine into ethanol
Date:11/18/2011

" said Doran-Peterson.

During a two-year period, Doran-Peterson and Hawkins grew the yeast in increasingly inhospitable environments. The end result was a strain of yeast capable of producing ethanol in fermentations of pretreated wood containing as much as 17.5 percent solid biomass. Previously, researchers were only able to produce ethanol in the presence of 5 to 8 percent solids. Studies at 12 percent solids showed a substantial decrease in ethanol production.

This is important, said Doran-Peterson, because the greater the percentage of solids in wood, the more ethanol that can be produced. However, a high percentage of solids also places stress on the yeast.

"Couple that stress with the increase in toxic compounds, and the fermentation usually does not proceed very well," she said.

Pine is an ideal substrate for biofuels not only because of its high sugar content, but also because of its sustainability. While pine plantations account for only 15 percent of Georgia's trees, they provide 50 percent of harvested timber, according to Dale Greene, professor of forest operations in UGA's Warnell School of Forestry and Natural Resources. The loblolly pine that Doran-Peterson and Hawkins used for their research is among the fastest growing trees in the American South.

"We're talking about using forestry residues, waste and unsalable timber," said Peterson, "Alternatively, pine forests are managed for timber and paper manufacturing, so there is an existing infrastructure to handle tree-farming, harvest and transportation for processing.

"The basic idea is that we're trying to get the yeast to make as much ethanol as it can, as fast as it can, while minimizing costs associated with cleaning or washing the pretreated pine. With our process, no additional clean-up steps are required before the pine is fermented," she said.


'/>"/>
Contact: Joy Doran-Peterson
jpeterso@uga.edu
706-542-4115
University of Georgia
Source:Eurekalert

Page: 1 2

Related biology news :

1. Smart swarms of bacteria inspire robotics researchers
2. Finnish researchers discover regulator of human cell activity
3. USC researchers discover key aspect of process that activates breast cancer genes
4. Researchers confirm new cancer-causing virus
5. Researchers get $7.5M grant to combat nerve agents
6. Researchers uncover why the body cant defend against tuberculosis
7. Results triple researchers projections with use of adult stem cells for heart failure
8. Researchers develop more effective way to discover and test potential cancer drugs
9. Researchers closer to the super bug puzzle
10. Einstein researchers discover key to cell specialization
11. 200 thousand dollars awarded to genomics researchers to spark new research technology development
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:11/18/2014)...   News Highlights: ... The Partners Data Lake, an agile data and ... will allow researcher and clinicians to explore and ... lives of patients , The Partners Data ... the Partners system, breaking down physical barriers for ...
(Date:11/11/2014)... Nov. 11, 2014  Forensicon, Inc., a ... pleased to announce the promotion of Yaniv Schiff ... Digital Forensics. In Schiff,s new role as Director, he ... of digital forensics examiners and provide leadership within the ... - http://photos.prnewswire.com/prnh/20141110/157719 Schiff joined ...
(Date:11/6/2014)... team of Florida State University biologists could lead to ... and survive environmental swings such as droughts or floods. ... the journal The Plant Cell , sheds light ... is organized in a cell and how plants regulate ... and others are turned off. , "If you understand ...
Breaking Biology News(10 mins):Partners HealthCare and EMC Unite to Solve Health Care's Toughest Challenges Using Big Data 2Partners HealthCare and EMC Unite to Solve Health Care's Toughest Challenges Using Big Data 3Partners HealthCare and EMC Unite to Solve Health Care's Toughest Challenges Using Big Data 4Partners HealthCare and EMC Unite to Solve Health Care's Toughest Challenges Using Big Data 5Yaniv Schiff Promoted to Director of Digital Forensics at Forensicon, Inc. 2Maize analysis yields whole new world of genetic science 2
... FL, January 30, 2014 Scientists from the Florida ... awarded approximately $1.8 million from the National Cancer Institute ... signaling pathways that underlie lung cancer and to use ... Kissil, a TSRI associate professor, will be principal investigator ...
... say they have opened the window on the natural process of ... could be used to advance therapies for bone fractures and disease. ... the Feb. 13 issue of the journal Cell Reports , ... to allow adult zebra fish to perfectly replace bones lost upon ...
... in German . ... neurons in the brain. Nerve growth factors produced by the body, ... tests with GDNF have not yielded in any clear improvements. Scientists ... colleagues have now succeeded in demonstrating that GDNF and its receptor ...
Cached Biology News:Zebra fish fins help Oregon researchers gain insight into bone regeneration 2Parkinson gene: Nerve growth factor halts mitochondrial degeneration 2Parkinson gene: Nerve growth factor halts mitochondrial degeneration 3
(Date:11/24/2014)... November 24, 2014 Continental Clinical ... populations into clinical trials at its mid-Atlantic late-phase ... “Continental was created with the idea of closing ... fundamental role in medical advances," said Continental's CEO, ... experiment to the immortal cell line of Henrietta ...
(Date:11/24/2014)... , Nov. 24, 2014  Spherix Incorporated (Nasdaq: ... committed to the fostering and monetization of intellectual ... VTech Telecommunications Ltd.,  Case No. 3:13-cv-03494-M and  Spherix ... 3:13-cv-03496-M, both in the United States District Court ... . On November 21, ...
(Date:11/22/2014)... November 21, 2014 Two new educational webinars ... comes next for ALS research and how the pharmaceutical industry ... the Ice Bucket Challenge: Where Does the ALS Money Go? ... 2 December 2014, Time: 1:30pm ET, Register to ... speaker Dr. Merit Cudkowicz, Julianne Dorn Professor of Neurology at ...
(Date:11/22/2014)... 2014 CannLabs, Inc. (OTCQB: ... and scientific testing methodologies relating to cannabis, today announced ... line of credit from an existing stockholder of the ... secured this commitment from one of our existing stockholders,” ... “This capital will help accelerate our planned expansions into ...
Breaking Biology Technology:At Continental Clinical Solutions, CEO Saleh Stevens Focuses on Diversity in Clinical Trial Recruitment at Maryland Site 2At Continental Clinical Solutions, CEO Saleh Stevens Focuses on Diversity in Clinical Trial Recruitment at Maryland Site 3Markman Hearing Held as Scheduled in VTech and Uniden Cases 2DrugDev Webinars in December to Explore What Comes Next for ALS Research and How We Can Make Life Easier for Clinical Sites 2CannLabs Secures $750,000 Line Of Credit 2
... (NASDAQ: NBIX ) announced today that it ... initial cohort of Tardive Dyskinesia patients using its proprietary ... this data, the Company is initiating the Investigational New ... Drug Administration (FDA). "We are very pleased ...
... announces that a new market research report is ... Sequencing - technologies, markets and companies ... report briefly reviews basics of human genome variations, ... large and small sequencers are described as well ...
... 2011 Caliper Life Sciences, Inc. (NASDAQ: ... for drug discovery and life-sciences research, today announced that ... formed a research collaboration with Denver-based Catholic Health Initiatives ... The health care system,s Center for Translational Research ...
Cached Biology Technology:Neurocrine Biosciences Announces Successful Phase IIa Clinical Trial for VMAT2 Inhibitor 2Neurocrine Biosciences Announces Successful Phase IIa Clinical Trial for VMAT2 Inhibitor 3Neurocrine Biosciences Announces Successful Phase IIa Clinical Trial for VMAT2 Inhibitor 4Reportlinker Adds DNA Sequencing - Technologies, Markets and Companies 2Caliper Announces New Oncology Research Collaboration 2Caliper Announces New Oncology Research Collaboration 3