Navigation Links
Sugar-hungry yeast to boost biofuel production
Date:3/28/2010

Engineering yeast to transform sugars more efficiently into alcohols could be an economically and environmentally sound way to replace fossil fuels, say scientists presenting at the Society for General Microbiology's spring meeting in Edinburgh today.

Dr Christian Weber and Professor Eckhard Boles from Frankfurt University, Germany, have worked out how to modify yeast cells so that they successfully convert a wider range of sugars from plant waste such as wheat and rice straw into alcohol that can be used as biofuel.

Bioalcohols produced by microbial fermentations are an example of second generation biofuels that use raw materials not used in food production. Plant waste is available in large amounts and contains a mixture of complex sugars including hexoses and pentoses that can be fermented to alcohol. "As these feedstocks represent the biggest portion of processing costs, we need rapid and efficient conversion of all sugars present. At the moment there is a lack of microbes that will efficiently convert both hexoses and pentoses into ethanol," explained Dr Weber.

Bakers' yeast Saccharomyces cerevisiae is already used in the beverage industry to efficiently convert hexose sugars, such as glucose, into ethanol. By transferring genes from bacteria that naturally break down pentose, Dr Weber's team have engineered S. cerevisiae to successfully ferment pentose and hexose sugars. "As pentoses represent a substantial part of the feedstock, the engineered yeast gives a much higher yield of ethanol for the same amount of feedstock," he said.

To enhance their biofuel potential even more, the yeast is being further modified to produce another bioalcohol - butanol instead of ethanol. "Compared to ethanol, butanol shows superior properties as a potential biofuel." It has a lower vapour pressure, ignites at a higher temperature and is less corrosive. Butanol could replace fossil fuels up to 100% without modifying existing engines," said
'/>"/>

Contact: Laura Udakis
l.udakis@sgm.ac.uk
44-118-988-1843
Society for General Microbiology
Source:Eurekalert

Page: 1 2

Related biology news :

1. 2010 Yeast Genetics and Molecular Biology Meeting
2. Charles Drew cancer studies with yeast yield excellent results
3. Helpful yeast battles food-contaminating aflatoxin
4. Yeast missing sex genes undergo unexpected sexual reproduction
5. Jungle yeast
6. New study reveals the protein that makes phosphate chains in yeast
7. Rhythmic genomics -- the yeast metronome and the walk of life
8. Commercial yeasts upgraded with an enzyme for biofuel production
9. Scientists study full protein content of bakers yeast
10. Genetic differences between yeasts greater than those between humans and chimpanzees
11. Caltech engineers build mini drug-producing biofactories in yeast
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/23/2014)... A biomedical engineer at the University of Houston ... make blood transfusions safer. His work is supported by ... Health (NIH). , Blood transfusions save millions of ... absolute necessities. Without them, for instance, routine surgeries would ... however. There,s strong evidence that transfusions of red blood ...
(Date:4/23/2014)... used to read quickly. It involves visual searching ... and/ or sentences. Similarly to humans, biological systems ... genetic information. Genes that need to be read ... encoding message, the easier it will be to ... de Cincia (IGC, Portugal) and Centre for Molecular ...
(Date:4/23/2014)... one can argue that if we were to follow a ... we canthen we can solve the climate problem without doing ... climate researchers, in the current issue of Bulletin of ... significant action on climate change now makes it more likely ... Wigley explains in an exclusive Bulletin interview. ...
Breaking Biology News(10 mins):UH biomedical engineer works to make blood transfusions safer 2UH biomedical engineer works to make blood transfusions safer 3Cell division speed influences gene architecture 2Is nuclear power the only way to avoid geoengineering? 2
... fundamental building block of nearly all living material: carbon. ... for bacteria. Methane is produced in oxygen-free environments and ... The Brazilian post-doctoral researcher in biology and ecology, Angela ... lakebeds to be present in fish tissue. The study ...
... This release is available in German . Vitamin ... cells and the functioning of the nervous system. Unable to produce ... animal proteins. So far it has been known that on its ... so-called lysosomes. From there, the vitamin enters the cell interior with ...
... CITY, MOTwo opposing teams battle it out to regulate ... activators, keeps DNA open to enzymes that transcribe DNA ... twisting DNA into an inaccessible coil around histone proteins, ... by enzymes that elongate an RNA strand. Both ...
Cached Biology News:How methane becomes fish food 2Vitamin B12 deficiency: Tracing the causes 2Controlling gene expression: How chromatin remodelers block a histone pass 2Controlling gene expression: How chromatin remodelers block a histone pass 3
(Date:1/15/2014)... (PRWEB) January 15, 2014 Look inside ... hard-working items for the lab, from fluid handling to ... (GIS)—ready to ship when you order. , Preferred ... Pumps , from the L/S® model for precise flow ...
(Date:1/15/2014)... (PRWEB) January 15, 2014 This webinar ... nonclinical and clinical safety assessment in biosimilars. , Regulatory ... for biosimilar drug development, however the complex nature of ... quality, safety and efficacy extremely challenging. Based on the ...
(Date:1/15/2014)... 2014 The Microcompetition with Foreign DNA theory ... of these latent viruses is the Epstein Barr Virus (EBV), ... arthritis (RA) is a chronic inflammatory disease that destroys the ... that RA patients have high concentrations of EBV DNA in ...
(Date:1/15/2014)... AudioNotch is the internet's leading provider ... treatment of tinnitus. Patients listen to sound therapy that ... period of weeks to months, their tinnitus volume decreases. , ... Notched Music and Notched White Noise. Now, AudioNotch is pleased ...
Breaking Biology Technology:Cole-Parmer Begins 2014 with the Release of Preferred Solutions 2Xtalks Life Sciences Webinar Examines Safety Assessment of Biosimilars 2Study: Rheumatoid Arthritis (RA) Patients Have EBV; The CBCD Says this is Consistent with Microcompetition 2Study: Rheumatoid Arthritis (RA) Patients Have EBV; The CBCD Says this is Consistent with Microcompetition 3
... be challenged by the intervention of California Governor Arnold ... Bush administration, whose campaign he supports, Schwarzenegger announced on ... Proposition 71 , a California initiative on the ... the sale of $3 billion in bonds, and lay ...
... owns worldwide make batteries, lights and personal grooming products, ... other products. The company employs about 5,000 people. Ben ... engineer Mike Gutknecht; Brent Leland, director of business IT; ... effect of Sarbanes-Oxley on IT processes, myths about ROI ...
... in Wisconsin Rapids, will lead an interstate effort to ... Governor Jim Doyle has announced. , ,The college will ... National Science Foundation, some of which will fund a ... money will also help launch a national training network ...
Cached Biology Technology:Stem-cell support from Schwarzenegger could shake Wisconsin leadership 2Stem-cell support from Schwarzenegger could shake Wisconsin leadership 3Stem-cell support from Schwarzenegger could shake Wisconsin leadership 4Rayovacs IT team discusses network security, Sarbanes-Oxley and ROI myths 2Rayovacs IT team discusses network security, Sarbanes-Oxley and ROI myths 3Rayovacs IT team discusses network security, Sarbanes-Oxley and ROI myths 4Rayovacs IT team discusses network security, Sarbanes-Oxley and ROI myths 5Wisconsin to train tech-savvy paper industry with share of $5 million grant 2
These Costar 96-well, flat-bottom polystyrene EIA plates are used for EIAs, ELISAs, and other protein binding assays. Supplied as box of 100 (20 packages; 5 plates per package)....
... Assay provides a convenient method to probe conformational ... MDR1 substrates. Thus, the kit may be used ... act as transport substrates for MDR1. Because UIC2 ... MDR1 substrates, the MDR1 Shift Assay can be ...
... The wide and long ... of Polaroid gel documentation systems. ... holds the camera in place ... that allows photography on the ...
... are derived from Paraffin embedded tissue blocks, ... procedures to ensure the highest quality. Tissues ... one block, sectioned at a thickness of ... Sections are large (3-5 mm in diameter) ...
Biology Products: