Navigation Links
E. coli bacteria engineered to eat switchgrass and make transportation fuels
Date:11/29/2011

petitive.

Unlike the simple sugars in corn grain, the cellulose and hemicellulose in plant biomass are difficult to extract in part because they are embedded in a tough woody material called lignin. Once extracted, these complex sugars must first be converted or hydrolyzed into simple sugars and then synthesized into fuels. At JBEI, a DOE Bioenergy Research Center led by Berkeley Lab, one approach has been to pre-treat the biomass with an ionic liquid (molten salt) to dissolve it, then engineer a single microorganism that can both digest the dissolved biomass and produce hydrocarbons that have the properties of petrochemical fuels.

"Our goal has been to put as much chemistry as we can into microbes," Keasling says. "For advanced biofuels this requires a microbe with pathways for hydrocarbon production and the biomass-degrading capacity to secrete enzymes that efficiently hydrolyze cellulose and hemicellulose. We've now been able to engineer strains of Escherichia coli that can utilize both the cellulose and hemicellulose fractions of switchgrass that's been pre-treated with ionic liquids."

E. coli bacteria normally cannot grow on switchgrass, but JBEI researchers engineered strains of the bacteria to express several enzymes that enable them to digest cellulose and hemicellulose and use one or the other for growth. These cellulolytic and hemicellulolytic strains of E. coli, which can be combined as co-cultures on a sample of switchgrass, were further engineered with three metabolic pathways that enabled the E. coli to produce fuel substitute or precursor molecules suitable for gasoline, diesel and jet engines. While this is not the first demonstration of E. coli producing gasoline and diesel from sugars, it is the first demonstration of E. coli producing all three forms of transportation fuels. Furthermore, it was done using switchgrass, which is among the most highly touted of the potential feedstocks
'/>"/>

Contact: Lynn Yarris
lcyarris@lbl.gov
510-486-5375
DOE/Lawrence Berkeley National Laboratory
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Targeted antibacterial proteins may offer antibiotic alternative
2. What bacteria dont know can hurt them
3. UofL researcher determines how Legionnaires bacteria proliferate, cause disease
4. Smart swarms of bacteria inspire robotics researchers
5. Targeting bacterial gas defenses allow for increased efficacy of numerous antibiotics
6. Bacteria responsible for common infections may protect themselves by stealing immune molecules
7. New study finds that even the cleanest wastewater contributes to more super bacteria
8. Bacterial genes tell the tale of an outbreaks evolution
9. Caltech researchers find pulsating response to stress in bacteria
10. Texas A&M center confronts antibiotic crisis with potential new bacterial treatment
11. MIT: Bacteria may readily swap beneficial genes
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
E. coli bacteria engineered to eat switchgrass and make transportation fuels
(Date:11/4/2014)... Temple University School of Medicine announced today that ... initiative funded by the Bill & Melinda Gates ... Obstetrics, Gynecology and Reproductive Sciences; and Vice Chair ... School of Medicine will pursue an innovative global ... Biomarkers to Assess Fetal Neurodevelopment.", Grand Challenges Explorations ...
(Date:11/4/2014)... majority of Madagascar,s 101 species of lemurs are threatened ... the rainforests they call home. A new study by ... have on rainforest tree populations, which raises concerns about ... region,s rich biodiversity. , A large proportion of trees ... Lemurs in turn disperse the seeds of their fruit ...
(Date:11/3/2014)... 2014  NeuroSigma ® , Inc. (NeuroSigma), a ... focused on commercialization of its non-invasive ... of neurological and neuropsychiatric disorders, announced today that ... a Notice of Allowance for Mexican Patent Application ... NeuroSigma and the Regents of the University of ...
Breaking Biology News(10 mins):Temple University School of Medicine receives Grand Challenges Explorations grant 2Gardeners of Madagascar rainforest at risk 2Gardeners of Madagascar rainforest at risk 3NeuroSigma Receives Notice of Allowance from the Mexican Institute of Industrial Property Covering Subcutaneous Trigeminal Nerve Stimulation (sTNS) 2NeuroSigma Receives Notice of Allowance from the Mexican Institute of Industrial Property Covering Subcutaneous Trigeminal Nerve Stimulation (sTNS) 3
... CA (1 April 2010)Two conservationists who have dedicated their ... brink of extinction and ensure their habitat remains for ... for Environmental Achievement, one of the world,s first international ... 1973, the Tyler Prize continues to be the premier ...
... Programs of the National Academy of Sciences will co-host ... Center for Art, Design, and Visual Culture (University of ... Arts in Museum Studies Program. The online symposium ... through April 14. A group of more than ...
... researchers and academics from around the world will ... Digestive Disease Week (DDW), the premiere scientific conference ... gastrointestinal surgery. Each day of the ... a broad variety of gastrointestinal health issues: the ...
Cached Biology News:Leading conservation scientists awarded prestigious 2010 Tyler Environmental Prize 2Leading conservation scientists awarded prestigious 2010 Tyler Environmental Prize 3NAS announces visual culture and evolution online symposium 2NAS announces visual culture and evolution online symposium 3Latest research on GI health presented at DDW 2010 2
(Date:11/26/2014)... (PRWEB) November 25, 2014 SonaCare ... Focused Ultrasound (HIFU) devices, recently participated in the ... Renal Mass 360° .” Key opinion leaders in ... advances related to small renal masses while attendees ... different ablative technologies in hands-on labs. Attendees at ...
(Date:11/26/2014)... November 25, 2014 Global biostimulants ... 2019 growing at an estimated CAGR of 12.5%. ... healthy food products with least ecological impacts, farmers ... fertilizers to boost crop yield more effectively & ... that can improve the return on investments. , ...
(Date:11/26/2014)... Dallas, Texas (PRWEB) November 26, 2014 ... Acid Industry is an in-depth research report on ... analysis, the report introduces Palmitic Acid, basic information, ... overview, policy analysis, and news analysis, etc. ... report analyzes Palmitic Acid market in ...
(Date:11/26/2014)...  Roka Bioscience, Inc. (NASDAQ: ROKA ), a ... the detection of foodborne pathogens, today announced that Paul ... th Annual Healthcare Conference on December 2, 2014 at ... York Palace in New York, NY . ... Company, its operations, strategies and prospects may be discussed. To ...
Breaking Biology Technology:SonaCare Medical Supports American Urology Association’s Small Renal Mass 360° Summit 2SonaCare Medical Supports American Urology Association’s Small Renal Mass 360° Summit 32019 Biostimulants Market to Grow at a CAGR of 12.5% Says a New Research Report Available at RnRMarketResearch.com 22019 Biostimulants Market to Grow at a CAGR of 12.5% Says a New Research Report Available at RnRMarketResearch.com 32019 Biostimulants Market to Grow at a CAGR of 12.5% Says a New Research Report Available at RnRMarketResearch.com 4Palmitic Acid Industry Global 2014 Analysis & 2020 Forecasts on Market data, Statics, Development Now at ReportsnReports.com 2Palmitic Acid Industry Global 2014 Analysis & 2020 Forecasts on Market data, Statics, Development Now at ReportsnReports.com 3Roka Bioscience to Present at the Piper Jaffray Healthcare Conference 2
... SRI International has been awarded two National Cancer Institute ... provide SRI up to $11.7 million for toxicology studies ... studies that will be carried out through NCI,s Developmental ... SRI,s preclinical studies for the NCI, one of the ...
... 5, 2011 BioCrossroads today announced the receipt of ... The grant will fund a range of charitable, educational ... build upon Indiana,s signature strengths in the life sciences. ... in early 2012, we recognize that Lilly Endowment,s significant ...
... Elsevier, a world-leading provider of scientific, technical ... of Sydney, Australia,s leading higher education and research university, ... Hackathon . From Saturday, September 24 ... improve delivery of scientific, medical and technical content using ...
Cached Biology Technology:SRI International Awarded Two National Cancer Institute Preclinical Development Service Contracts 2SRI International Awarded Two National Cancer Institute Preclinical Development Service Contracts 3Two-year $2.8 million Grant from Lilly Endowment Fuels BioCrossroads' Charitable, Educational and Scientific Mission 2Two-year $2.8 million Grant from Lilly Endowment Fuels BioCrossroads' Charitable, Educational and Scientific Mission 3Elsevier and the University of Sydney Announce Prize Winners of 24-Hour Hackathon 2Elsevier and the University of Sydney Announce Prize Winners of 24-Hour Hackathon 3Elsevier and the University of Sydney Announce Prize Winners of 24-Hour Hackathon 4Elsevier and the University of Sydney Announce Prize Winners of 24-Hour Hackathon 5
...
Immunogen: Synthetic peptide (aa sequence is considered to be commercially sensitive) Storage: -20 C, Avoid Freeze/Thaw Cycles...
TRIzol Reagents are ready-to-use monophasic solutions of phenol and guanidine isothiocyanate suitable for isolating total RNA DNA and proteins (16)....
...
Biology Products: