Xethanol Corp. (AMEX:XNL)
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Xethanol Corporation (AMEX: XNL), a diversified renewable energy
company, today announced that Dr. Thomas Jeffries addressed the Fuel
Ethanol Workshop in Nashville, Tennessee this morning to report on his
research sponsored by Xethanol. Dr. Jeffries, a Professor at the
University of Wisconsin-Madison, conducts research at the Forest
Products Laboratory of the U.S. Department of Agriculture in Madison.
Dr. Jeffries spoke on fermentation of cellulose and hemicellulose from
corn waste. His Xethanol-sponsored research at the Forest Products Lab
focuses on the reduction of the net cost of renewable fuel made from
wood and agricultural waste.
During his presentation, Dr. Jeffries discussed the key advantages of
why ethanol produced from agricultural (corn) residues is more energy
efficient than ethanol produced from corn grain alone. Key points of his
speech discussed the benefits that farmers can realize from this
process. For example, residues can be recovered with little additional
energy input, and the sale of agricultural residues can provide farmers
with additional income. In addition, Dr. Jeffries elaborated on the
pretreatments to recover sugars that are becoming available, along with
several technologies using sulfuric, sulfurous, or oxalic acids ethanol
and other products that can be made from the hemicellulosic sugars.
Commercial enzymes are also available to recover sugar from the
pretreated residue with cellulases and xylanases release fermentable
sugars yielding a total sugar from corn waste approaching 90%.
David Ames, Xethanol’s CEO commented, “We
are pleased with the progress that Dr. Jeffries and his team are making.
Although production of ethanol from cellulosic by-products has been
possible for many years, cost efficiently producing ethanol in this
manner has been the challenge. Dr. Jeffries’
work is moving us closer to that goal.”
Xethanol-sponsored researchers at the Forest Products Lab have developed
yeasts that ferment xylose and cellulose to ethanol using a native
xylose fermenting yeast that can be employed commercially without
environmental concerns, more than doubling the fermentation rate by
engineering a single gene. Researchers have also identified more than 10
targets for additional genetic development, and others are being
developed for higher value products. Hydrolysate fermentation trials are
currently underway, and the process is being evaluated for commercial
trials.
The Fuel Ethanol Workshop took place at the Gaylord Opryland Resort &
Convention Center in Nashville. Dr. Jeffries presented on June 18, 2008
at 8:30 a.m. (Central)
About the Fuel Ethanol Workshop & Expo
The fuel ethanol workshop program agenda is developed by a steering
committee of ethanol producers. The committee’s
objective is to help meet the needs and interests of the growing ethanol
industry by focusing on issues and topics that improve production and
plant operations. For additional information please visit https://www.fuelethanolworkshop.com.
About Xethanol Corporation
Xethanol Corporation is a diversified renewable energy company focused
on alternate energy products and technologies as well as producing
ethanol and other co-products. Xethanol may invest in renewable energy
and clean technology, including biomass gasification for electricity
production, wind power, solar power, energy storage, energy
infrastructure, energy efficiency, waste recycling and agricultural
processes.
Xethanol has research agreements in place, including several aimed at
efficient production of cellulosic ethanol. In addition to its work with
the USDA Forest Products Lab in Madison, Wisconsin, Xethanol is working
with other leading scientific institutions in the country, including the
National Renewable Energy Lab in Golden, Colorado; Virginia Tech in
Blacksburg, Virginia; and the Energy and Environmental Research Lab in
Grand Forks, North Dakota.
For more information about Xethanol, please visit its website at http://www.xethanol.com.
Forward Looking Statements
Some of the statements made in this press release may constitute
forward-looking statements within the meaning of the Private Securities
Litigation Reform Act of 1995. These forward-looking statements are
based on management’s current expectations and
include known and unknown risks, uncertainties and other factors, many
of which the company is unable to predict or control, that may cause the
company’s actual results or performance to
differ materially from any future results or performance expressed or
implied by such forward-looking statements. These statements involve
risks and uncertainties, including risks and uncertainties associated
with whether the research the company is sponsoring will lead to
commercial success. These risks and uncertainties are in addition to
other factors detailed from time to time in the company’s
filings with the SEC, including the section entitled “Risk
Factors” in its annual report on Form 10-K for
the year ended December 31, 2007. The company cautions investors that
any forward-looking statements made by the company are not necessarily
indicative of future performance. The company is not responsible for
updating the information contained in this press release beyond the
published date, or for changes made to this document by wire services or
Internet services.