Navigation Links
New UGA biomass technology dramatically increases ethanol yield from grasses and yard waste
Date:7/28/2008

University of Georgia researchers have developed a new technology that promises to dramatically increase the yield of ethanol from readily available non-food crops, such as Bermudagrass, switchgrass, Napiergrassand even yard waste.

"Producing ethanol from renewable biomass sources such as grasses is desirable because they are potentially available in large quantities," said Joy Peterson, professor of microbiology and chair of UGA's Bioenergy Task Force. "Optimizing the breakdown of the plant fibers is critical to production of liquid transportation fuel via fermentation." Peterson developed the new technology with former UGA microbiology student Sarah Kate Brandon, and Mark Eiteman, professor of biological and agricultural engineering.

The new technology features a fast, mild, acid-free pretreatment process that increases by at least 10 times the amount of simple sugars released from inexpensive biomass for conversion to ethanol. The technology effectively eliminates the use of expensive and environmentally unsafe chemicals currently used to pretreat biomass.

The technology is available for licensing from the University of Georgia Research Foundation, Inc., which has filed a patent application.

Inexpensive waste productsincluding corn stover or bagasse, the waste from corn and sugar cane harvests, fast-growing weedsand non-food crops grown for biofuel, such as switchgrass, Napiergrass and Bermudagrass, are widely viewed as the best sustainable resources for ethanol made from biofuels.

"Using non-food crops that can be grown on marginal lands, like grasses, and fibrous waste streams like corn stover, is important because of the ongoing food-versus-fuel debate," said Peterson. "When agricultural crops, such as corn or potatoes, are grown for biofuels production, the cost of the starting material may fluctuate greatly because of competing demands for food and feed. The trade-off with using a biomass like grasses is that grasses are harder to break apart than corn or potatoes, and the cost of making the same fuel, like ethanol, rises."

Developing an efficient, cost-effective process to convert the fibrous stalks, leaves, and blades of plant wastes into simple sugars is the biggest challenge to bio-based ethanol production. Thick, complex plant cell walls are highly resistant to efforts to break them down.

Currently, woody biomass requires soaking under high pressure and temperatures in expensive, environmentally aggressive bases or acids before it is subjected to enzymes that digest it, producing simple sugars. The harsh pretreatment solutions subsequently must be removed and disposed of safely. They also cause formation of side products that can slow down the conversion of the sugars into ethanol.

In contrast, the environmentally friendly UGA technology eliminates the expense of harsh pretreatment chemicals and their disposal, and the formation of side products is minimal.

"The new technology has commercial application for the biomass industry, including producers of sugar cane, corn, switchgrass, Napiergrass and other woody biomass crops," said Gennaro Gama, UGARF technology manager responsible for licensing this technology. "It may also help renewable energy and biofermentation companiesand local governments.

"By allowing for the use of myriad raw materials, this technology allows more options for ethanol facilities trying to meet nearby demand by using locally available, inexpensive starting materials," he added. "This would greatly reduce the costs and carbon footprint associated with the delivery of raw materials to fermentation facilities and the subsequent delivery of ethanol to points of sale. Local production of ethanol may also protect specific areas against speculative fluctuations in fuel prices.

"It's easy to imagine that this easy-to-use, inexpensive technology could be used by local governments, alone or in partnership with entrepreneurs, to meet local demand for ethanol, possibly using yard waste as a substrate," he said.


'/>"/>

Contact: Kim Osborne
kosborne@uga.edu
706-583-0913
University of Georgia
Source:Eurekalert

Related biology news :

1. Iowa State researchers study ground cover to reduce impact of biomass harvest
2. Lean and mean biomass-degrading fungus reveals capabilities for improved biofuel production
3. Key to using local resources for biomass may include waste
4. First datasets for national biomass and carbon dataset now available
5. Biomass production -- careful planning can bring many benefits
6. The race for biofuels driving alternative sources of biomass
7. Ceres and Texas A&M to develop and market high-biomass sorghum for biofuels
8. Emergency response and nanotechnology
9. M2SYS Technology Selected by ZOLL Data Systems to Integrate Fingerprint Software
10. Multitasking nanotechnology
11. Radiation, nanotechnology, health care and more
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/11/2017)... , April 11, 2017 NXT-ID, Inc. ... technology company, announces the appointment of independent Directors Mr. ... to its Board of Directors, furthering the company,s corporate governance ... Gino ... we look forward to their guidance and benefiting from their ...
(Date:4/5/2017)... , April 4, 2017 KEY FINDINGS ... to expand at a CAGR of 25.76% during the ... is the primary factor for the growth of the ... https://www.reportbuyer.com/product/4807905/ MARKET INSIGHTS The global stem ... technology, application, and geography. The stem cell market of ...
(Date:3/30/2017)... , March 30, 2017 The research team ... for three-dimensional (3D) fingerprint identification by adopting ground breaking 3D fingerprint ... new realm of speed and accuracy for use in identification, crime ... affordable cost. ... A ...
Breaking Biology News(10 mins):
(Date:10/11/2017)... ... ... wash is a basic first aid supply for any work environment, but most personal eye ... first if a dangerous substance enters both eyes? It’s one less decision, and likely quicker ... eye piece. , “Whether its dirt and debris, or an acid or alkali, getting anything ...
(Date:10/11/2017)... Netherlands and LAGUNA HILLS, Calif. ... Institute of Cancer Research, London (ICR) ... MMprofiler™ with SKY92, SkylineDx,s prognostic tool to risk-stratify patients with ... known as MUK nine . The University of ... which is partly funded by Myeloma UK, and ICR will ...
(Date:10/10/2017)... ... October 10, 2017 , ... San Diego-based team building and cooking ... initiative announced today. The bold new look is part of a transformation to ... into a significant growth period. , It will also expand its service offering from ...
(Date:10/10/2017)... Oct. 10, 2017 International research firm Parks Associates ... speak at the TMA 2017 Annual Meeting , October 11 in ... the residential home security market and how smart safety and security products ... Parks Associates: Smart ... "The residential security market ...
Breaking Biology Technology: