Navigation Links
Delft breakthrough in bioethanol production from agricultural waste
Date:11/20/2009

With the introduction of a single bacterial gene into yeast, researchers from Delft University of Technology in the Netherlands achieved three improvements in bioethanol production from agricultural waste material: 'More ethanol, less acetate and elimination of the major by-product glycerol' This week the invention was published in the scientific journal Applied and Environmental Microbiology.

Car fuel

Bioethanol is made by the yeast Saccharomyces cerevisiae from sugars obtained from plant biomass. This microorganism also converts such sugars into ethanol (alcohol) in beer and wine. The production of bioethanol is rapidly increasing due to the growing use of bioethanol as a car fuel. With an annual world production of 65 billion liters, bioethanol is aready the largest product of the fermentation industry

Second Generation

Bioethanol should of course preferably be produced from resources that do not compete with food production. For this reason, efforts are made to produce second-generation bioethanol, using agricultural residues such as wheat straw and corn stover. However, when the sugars from these raw materials are released, significant quantities of acetate are formed. Acetate can slow down or even halt bioethanol production by yeast.

Byproduct

Another challenge of the current bioethanol production process is that about 4% of the sugar is lost to formation of the byproduct glycerol. Glycerol formation was long considered to be an inevitable consequence of the production conditions during bioethanol production.

Yeast genes

TU Delft researchers have now solved these issues. Yeast can, at least in theory, also convert the harmful acetate to ethanol. As it turns out, just one single gene is missing in the yeast. By introducing a single gene from the bacterium Escherichia coli, researchers of the Netherlands-based Delft University of Technology and the Klu
'/>"/>

Contact: Ineke Boneschansker
i.boneschansker@tudelft.nl
31-152-788-499
Delft University of Technology
Source:Eurekalert

Page: 1 2

Related biology news :

1. New Delft material concept for aircraft wings could save billions
2. Breakthrough in fight against Hendra virus
3. Bio-optics breakthroughs: Highlights of medical and bioscience research at Frontiers in Optics 2009
4. Canadian research breakthrough holds promise for development of effective cancer therapies
5. Researchers achieve major breakthrough with water desalination system
6. Major breakthrough in early detection and prevention of AMD
7. Breakthrough made in assessing marine phytoplankton health
8. Breakthrough in radiotherapy promises targeted cancer treatment
9. Breakthrough in the treatment of bacterial meningitis
10. NEWSLETTER: Antibody Fragment Production Breakthrough with 2nd Generation EBA
11. Breakthrough made in energy efficiency, use of waste heat
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:11/4/2014)... 4, 2014   Neurotechnology , a provider ... the latest version of its fingerprint matching algorithm ... MINEX evaluation organized by NIST. The MINEX ... the INCITS 378 fingerprint standard template format. MINEX ... tenders in the United States ...
(Date:11/3/2014)... study published in this month,s Proceedings of ... of a recently discovered communication molecule of the body,s ... known to limit inflammation and the current study reports ... the ability of the immune system to recognize and ... IL-37,s effect on the immune system now allows us ...
(Date:11/3/2014)... weight and preterm birth are linked to increased risk ... in the American College of Rheumatology (ACR) journal, ... weight and pre-term babies were not at greater risk ... , According to the ACR, 27 million Americans over ... Symptoms of OA range from mild to severe and ...
Breaking Biology News(10 mins):Neurotechnology Places Second in Ongoing MINEX Ranking for Fingerprint Matching Algorithms 2Neurotechnology Places Second in Ongoing MINEX Ranking for Fingerprint Matching Algorithms 3PNAS: From HIV to cancer, IL-37 regulates immune system 2Preterm, low birth-weight babies may need new hips in adulthood 2
... who have adapted a three-dimensional, general circulation model of ... ago when the sun was significantly fainter than present ... catastrophic glaciation than previously believed. The new 3-D ... from about 3.8 billion years to 2.5 billion years ...
... Managing commercial and recreational fisheries is a complex ... and regulatory agencies don,t always see eye-to-eye. Researchers ... now working with commercial fishermen to collect and share ... build trust and foster the mutual goal of sustainable ...
... neurodegenerative diseases such as Parkinson,s and Alzheimer,s, cancer and ... partially caused or accelerated by oxidative stress. Oxidative stress ... what are called reactive oxygen species (ROS). "However, up ... changes in a living organism and certainly not how ...
Cached Biology News:Early Earth may have been prone to deep freezes, says CU-Boulder study 2Early Earth may have been prone to deep freezes, says CU-Boulder study 3Public-private partnership helps monitor fish populations 2Public-private partnership helps monitor fish populations 3Public-private partnership helps monitor fish populations 4Public-private partnership helps monitor fish populations 5Oxidative stress: Less harmful than suspected? 2
(Date:11/26/2014)... Chester, OH (PRWEB) November 25, 2014 ... Holdings, has joined the Graphel Carbon Products team as ... in sales, marketing, and customer service for the graphite ... add Miles to our team,” stated Dave Trinkley, VP ... “His wide range of experience in the graphite ...
(Date:11/26/2014)... , 25 novembre 2014 Theravalues Corporation ... sur le marché européen au salon Hi Europe ... Amsterdam ). Curcumine la plus ... technologie amorphe (non-cristalline) à des ingrédients approuvés par ... un pigment jaune présent dans la racine de ...
(Date:11/24/2014)... BUENA, N.J. , Nov. 24, 2014  IGI ... Jersey based specialty generic pharmaceutical company, today ... application (ANDA) to the U.S. Food and Drug Administration ... submissions in 2014 to seven, with eighteen submissions now ... Grenfell-Gardner , President and CEO of the Company, commented, ...
(Date:11/24/2014)... November 24, 2014   ... ScienceDirect   Elsevier , a world-leading provider ... pleased to announce the launch of the latest title in ... Current Opinion in Food Science . ... specialists with a new platform to keep up-to-date with the ...
Breaking Biology Technology:Miles Holder Joins Graphel Corporation as Sales/Marketing Manager 2La curcumine présentant la plus haute biodisponibilité bientôt en vente en Europe 2La curcumine présentant la plus haute biodisponibilité bientôt en vente en Europe 3IGI Laboratories, Inc. Announces ANDA Submission 2Elsevier Announces Launch of New Journal: Current Opinion in Food Science 2Elsevier Announces Launch of New Journal: Current Opinion in Food Science 3
... Brings Both Clinical Trial Experience and Business ... Role, CAMBRIDGE, Mass., Jan. 16 Cytel, ... executive Irving Dark has,accepted the role of Vice ... to Cytel 15-years of management experience guiding drug,biologic ...
... BASEL, Switzerland, Jan. 16 Roche (OTCQX:,RHHBY; SWX: ROG.VX; ... today that it has extended its,offer to acquire all ... (Nasdaq: VMSI ) to 5:00 p.m., New York ... was previously scheduled to expire at 5:00,p.m., New York ...
... NEW YORK, Jan. 16 With the field ... research, the Society for Biological Engineering,(SBE) has organized ... conference, which runs from January 20th to 23rd ... will focus on,engineering designs for stem cell production, ...
Cached Biology Technology:Irving Dark Named Vice President of Cytel Clinical Research Services 2Roche Extends Tender Offer for Ventana 2Roche Extends Tender Offer for Ventana 3Roche Extends Tender Offer for Ventana 4Roche Extends Tender Offer for Ventana 5Society for Biological Engineering Holds First International Conference on Stem Cell Engineering 2
... Panels were designed for full-length gene cloning ... to identify the desired cDNA clone. The ... 96-well "Master Plate," where each well contains ... the positive well(s) by gel electrophoresis of ...
... Preparation Note: Prepared by a ... C.W., et al., Biotechnol. Bioeng., ... Definition: One unit will yield an ... 1.0 ml of water (1 cm ...
... Dithiothreitol DTT White solid.. ... disulfides to thiols, so reaction is "driven" to ... not contain waxy surfactant found in many other ... pentobarbitol. Purity: ≥97% by titration. ...
... Basically, most ``special`` dye stains are ... few other non-routine) stains are $9.00. ... a paraffin block, staining, coverslipping and ... (for senile plaques) ,Bodian`s Stain ,Copper ...
Biology Products: