World Grain - January 2007 - 36

BIOFUELS QUARTERLY: A NEW WAY TO PRODUCE ETHANOL

the fermentor, thereby producing more
ethanol per batch and improving cost
savings.
Singh said the removal of germ and
pericarp fiber also reduces and refines
the DDGS that is recovered at the back
end of the modified dry grind process.
"The U.S. market for DDGS is saturated," Singh said. "By pulling the germ

The enzymatic dry grind process developed by
researchers at the University of Illinois reduces
the volume of DDGS (above) by 65% to 70%
and improves its nutritional characteristics. Photo
courtesy of Distillers Grains Technology Council.

We want to hear from you - Send comments and
inquiries to worldgrain@sosland.com. For reprints of
WG articles, e-mail reprints@sosland.com.

For you to
produce high-quality
food products,

about 50,000 bushels per day and only
one lower-value co-product (DDGS) is
produced.
HOW IT WORKS
Singh explains that the new biorefinery process adds technology very similar
to maize wet milling at front end of the
dry grind process. It also incorporates
the most recent advance in wet milling
technology - enzymatic milling. Several patents related to these technologies
have been issued and are jointly held by
the University of Illinois at USDA.
Instead of soaking maize in water
with sulfur dioxide for 24 to 36 hours,
researchers have developed a process
that uses enzymes rather than sulfites to
fractionate maize. The enzymatic technology takes only six hours, he said, and
eliminates health or environmental concerns caused by the use of sulfites.
After this shortened fractionation
step, the pericarp fiber (the kernel's
outer coating) and germ can be removed
prior to fermentation. This differs significantly from the dry grind process,
which is designed to ferment as much of
the maize kernel as possible.
Germ recovered from the biorefinery
process is of good enough quality to be
used for oil extraction. The pericarp recovery at this stage allows a producer
to pack more fermentable material in

and pericarp fiber out, you reduce the
volume of DDGS by 45%. You also diversify the market for DDGS because
the DDGS that you're getting now is potentially higher-protein feed that can be
WG
fed to poultry and swine."

we always
focus on
our part.
-

'/
'/

Enrichment Additives
Dough Conditioners
Bleaching Agents
Easy 20lb Packaging
Ingredient Feeders
Dispensing Equipment
Since 1946

Research Products Company
A Division of McShares Inc.

c

Visit our website for a complete list of products:
www.researchprod.com
P.O. Box 1460 · Salina, Kansas 67402-1460
p
(785)
825-2181 · Fax: (785) 825-8908
info@researchprod.com
For more information, see Page 70.

www.World-Grain.com / World Grain / January 2007

35



http://www.researchprod.com http://www.World-Grain.com

World Grain - January 2007

Table of Contents for the Digital Edition of World Grain - January 2007

Contents
World Grain - January 2007 - 1
World Grain - January 2007 - 2
World Grain - January 2007 - 3
World Grain - January 2007 - Contents
World Grain - January 2007 - 5
World Grain - January 2007 - 6
World Grain - January 2007 - 7
World Grain - January 2007 - 8
World Grain - January 2007 - 9
World Grain - January 2007 - 10
World Grain - January 2007 - 11
World Grain - January 2007 - 12
World Grain - January 2007 - 13
World Grain - January 2007 - 14
World Grain - January 2007 - 15
World Grain - January 2007 - 16
World Grain - January 2007 - 17
World Grain - January 2007 - 18
World Grain - January 2007 - 19
World Grain - January 2007 - 20
World Grain - January 2007 - 21
World Grain - January 2007 - 22
World Grain - January 2007 - 23
World Grain - January 2007 - 24
World Grain - January 2007 - 25
World Grain - January 2007 - 26
World Grain - January 2007 - 27
World Grain - January 2007 - 28
World Grain - January 2007 - 29
World Grain - January 2007 - 30
World Grain - January 2007 - 31
World Grain - January 2007 - 32
World Grain - January 2007 - 33
World Grain - January 2007 - 34
World Grain - January 2007 - 35
World Grain - January 2007 - 36
World Grain - January 2007 - 37
World Grain - January 2007 - 38
World Grain - January 2007 - 39
World Grain - January 2007 - 40
World Grain - January 2007 - 41
World Grain - January 2007 - 42
World Grain - January 2007 - 43
World Grain - January 2007 - 44
World Grain - January 2007 - 45
World Grain - January 2007 - 46
World Grain - January 2007 - 47
World Grain - January 2007 - 48
World Grain - January 2007 - 49
World Grain - January 2007 - 50
World Grain - January 2007 - 51
World Grain - January 2007 - 52
World Grain - January 2007 - 53
World Grain - January 2007 - 54
World Grain - January 2007 - 55
World Grain - January 2007 - 56
World Grain - January 2007 - 57
World Grain - January 2007 - 58
World Grain - January 2007 - 59
World Grain - January 2007 - 60
World Grain - January 2007 - 61
World Grain - January 2007 - 62
World Grain - January 2007 - 63
World Grain - January 2007 - 64
World Grain - January 2007 - 65
World Grain - January 2007 - 66
World Grain - January 2007 - 67
World Grain - January 2007 - 68
World Grain - January 2007 - 69
World Grain - January 2007 - 70
World Grain - January 2007 - 71
World Grain - January 2007 - 72
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