Enzymatic Dry Grind Corn Process Using a New Enzyme

Ping Wang; Li Xu; David B. Johnston; Kent D. Rausch; M. E. Tumbleson; Vijay Singh

Enzymatic Dry Grind Corn Process Using a New Enzyme

Ping Wang, Li Xu, David B. Johnston, Kent D. Rausch, M. E. Tumbleson, Vijay Singh

Research output: Contribution to conference › Paper › peer-review

Abstract

A new low temperature liquefaction and saccharification enzyme (GA2) was used in enzymatic dry grind corn process (E-Mill). E-Mill process was compared with conventional dry grind corn process using GA2 with same process parameters. Sugar, ethanol, glycerol and organic acid profiles and coproducts yields were investigated. Differences were observed in glucose profiles for the two processes. Final ethanol concentration of E-Mill process was 15.5% (v/v) which was 9.2% higher than conventional process. Fermentation rate was also higher for E-mill process. Ethanol yields of E-Mill and conventional processes were 2.8 and 2.9 gal/bushel, respectively. Three additional coproducts, germ 8.0% (db), pericarp fiber 7.7% (db) and endosperm fiber 5.2% (db) were produced in addition of DDGS with the E-Mill process. DDGS generated from the E-MiII process was 66% less than the conventional process.

Original language	English (US)
State	Published - 2005
Event	2005 ASAE Annual International Meeting - Tampa, FL, United States Duration: Jul 17 2005 → Jul 20 2005

Other

Other	2005 ASAE Annual International Meeting
Country/Territory	United States
City	Tampa, FL
Period	7/17/05 → 7/20/05

Keywords

Corn
Ddgs germ
Dry grind corn process
Endosperm fiber
Enzymatic dry grind corn process
Ethanol
Pericarp fiber

ASJC Scopus subject areas

General Agricultural and Biological Sciences
Bioengineering

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title = "Enzymatic Dry Grind Corn Process Using a New Enzyme",

abstract = "A new low temperature liquefaction and saccharification enzyme (GA2) was used in enzymatic dry grind corn process (E-Mill). E-Mill process was compared with conventional dry grind corn process using GA2 with same process parameters. Sugar, ethanol, glycerol and organic acid profiles and coproducts yields were investigated. Differences were observed in glucose profiles for the two processes. Final ethanol concentration of E-Mill process was 15.5% (v/v) which was 9.2% higher than conventional process. Fermentation rate was also higher for E-mill process. Ethanol yields of E-Mill and conventional processes were 2.8 and 2.9 gal/bushel, respectively. Three additional coproducts, germ 8.0% (db), pericarp fiber 7.7% (db) and endosperm fiber 5.2% (db) were produced in addition of DDGS with the E-Mill process. DDGS generated from the E-MiII process was 66% less than the conventional process.",

keywords = "Corn, Ddgs germ, Dry grind corn process, Endosperm fiber, Enzymatic dry grind corn process, Ethanol, Pericarp fiber",

author = "Ping Wang and Li Xu and Johnston, {David B.} and Rausch, {Kent D.} and Tumbleson, {M. E.} and Vijay Singh",

year = "2005",

language = "English (US)",

note = "2005 ASAE Annual International Meeting ; Conference date: 17-07-2005 Through 20-07-2005",

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TY - CONF

T1 - Enzymatic Dry Grind Corn Process Using a New Enzyme

AU - Wang, Ping

AU - Xu, Li

AU - Johnston, David B.

AU - Rausch, Kent D.

AU - Tumbleson, M. E.

AU - Singh, Vijay

PY - 2005

Y1 - 2005

N2 - A new low temperature liquefaction and saccharification enzyme (GA2) was used in enzymatic dry grind corn process (E-Mill). E-Mill process was compared with conventional dry grind corn process using GA2 with same process parameters. Sugar, ethanol, glycerol and organic acid profiles and coproducts yields were investigated. Differences were observed in glucose profiles for the two processes. Final ethanol concentration of E-Mill process was 15.5% (v/v) which was 9.2% higher than conventional process. Fermentation rate was also higher for E-mill process. Ethanol yields of E-Mill and conventional processes were 2.8 and 2.9 gal/bushel, respectively. Three additional coproducts, germ 8.0% (db), pericarp fiber 7.7% (db) and endosperm fiber 5.2% (db) were produced in addition of DDGS with the E-Mill process. DDGS generated from the E-MiII process was 66% less than the conventional process.

AB - A new low temperature liquefaction and saccharification enzyme (GA2) was used in enzymatic dry grind corn process (E-Mill). E-Mill process was compared with conventional dry grind corn process using GA2 with same process parameters. Sugar, ethanol, glycerol and organic acid profiles and coproducts yields were investigated. Differences were observed in glucose profiles for the two processes. Final ethanol concentration of E-Mill process was 15.5% (v/v) which was 9.2% higher than conventional process. Fermentation rate was also higher for E-mill process. Ethanol yields of E-Mill and conventional processes were 2.8 and 2.9 gal/bushel, respectively. Three additional coproducts, germ 8.0% (db), pericarp fiber 7.7% (db) and endosperm fiber 5.2% (db) were produced in addition of DDGS with the E-Mill process. DDGS generated from the E-MiII process was 66% less than the conventional process.

KW - Corn

KW - Ddgs germ

KW - Dry grind corn process

KW - Endosperm fiber

KW - Enzymatic dry grind corn process

KW - Ethanol

KW - Pericarp fiber

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M3 - Paper

AN - SCOPUS:84869610548

T2 - 2005 ASAE Annual International Meeting

Y2 - 17 July 2005 through 20 July 2005

ER -

Enzymatic Dry Grind Corn Process Using a New Enzyme

Abstract

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Keywords

ASJC Scopus subject areas

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