Increasing ethanol yield through fiber conversion in corn dry grind process

Kurambhatti, Chinmay V.; Kumar, Deepak; Rausch, Kent D.; Tumbleson, M. E.; Singh, Vijay

doi:10.1016/j.biortech.2018.09.120

Title: Increasing ethanol yield through fiber conversion in corn dry grind process

Journal Article · Tue Sep 25 00:00:00 EDT 2018 · Bioresource Technology

DOI:https://doi.org/10.1016/j.biortech.2018.09.120· OSTI ID:1991820

Kurambhatti, Chinmay V. ^[1]; Kumar, Deepak ^[1]; Rausch, Kent D. ^[1]; Tumbleson, M. E. ^[1]; Singh, Vijay ^[1]

University of Illinois at Urbana-Champaign, IL (United States)

Conversion of corn fiber to ethanol in the dry grind process could increase ethanol yields, reduce downstream processing costs and improve overall process profitability. In this work, we investigate the in-situ conversion of corn fiber into ethanol (cellulase addition during simultaneous saccharification and fermentation) during dry grind process. Addition of 30 FPU/g fiber cellulase resulted in 4.6% increase in ethanol yield compared to the conventional process. Use of excess cellulase (120 FPU/g fiber) resulted in incomplete fermentation and lower ethanol yield compared to the conventional process. Lastly, multiple factors including high concentrations of ethanol and phenolic compounds were responsible for yeast stress and incomplete fermentation in excess cellulase experiments.

View Accepted Manuscript (DOE)

Cite

Export

Save

Research Organization:: Center for Advanced Bioenergy and Bioproducts Innovation (CABBI), Urbana, IL (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Biological and Environmental Research (BER)

Grant/Contract Number:: SC0018420

OSTI ID:: 1991820

Alternate ID(s):: OSTI ID: 1478367

Journal Information:: Bioresource Technology, Vol. 270; ISSN 0960-8524

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

Citation Metrics:

Cited by: 15 works

Citation information provided by
Web of Science

References (13)

Bioactive Compounds from Culinary Herbs Inhibit a Molecular Target for Type 2 Diabetes Management, Dipeptidyl Peptidase IV Bower, Allyson M.; Real Hernandez, Luis M.; Berhow, Mark A. Journal of Agricultural and Food Chemistry, Vol. 62, Issue 26 https://doi.org/10.1021/jf500639f	journal	June 2014
Germ soak water as nutrient source to improve fermentation of corn grits from modified corn dry grind process Juneja, Ankita; Kumar, Deepak; Singh, Vijay Bioresources and Bioprocessing, Vol. 4, Issue 1 https://doi.org/10.1186/s40643-017-0170-8	journal	August 2017
A whole stillage sieving process to recover fiber for cellulosic ethanol production Kim, Sun Min; Li, Song; Pan, Shao-Chi Industrial Crops and Products, Vol. 92 https://doi.org/10.1016/j.indcrop.2016.08.012	journal	December 2016
Potential inhibitors from wet oxidation of wheat straw and their effect on ethanol production ofSaccharomyces cerevisiae: Wet oxidation and fermentation by yeast Klinke, H. B.; Olsson, L.; Thomsen, A. B. Biotechnology and Bioengineering, Vol. 81, Issue 6 https://doi.org/10.1002/bit.10523	journal	January 2003
Inhibition of ethanol-producing yeast and bacteria by degradation products produced during pre-treatment of biomass Klinke, H. B.; Thomsen, A. B.; Ahring, B. K. Applied Microbiology and Biotechnology, Vol. 66, Issue 1, p. 10-26 https://doi.org/10.1007/s00253-004-1642-2	journal	August 2004
In-situ corn fiber conversion improves ethanol yield in corn dry-mill process Li, Xiujuan; Chen, Sitong; Huang, He Industrial Crops and Products, Vol. 113 https://doi.org/10.1016/j.indcrop.2018.01.037	journal	March 2018
Addition of cellulolytic enzymes and phytase for improving ethanol fermentation performance and oil recovery in corn dry grind process Luangthongkam, P.; Fang, L.; Noomhorm, A. Industrial Crops and Products, Vol. 77 https://doi.org/10.1016/j.indcrop.2015.09.060	journal	December 2015
The Future of Coproducts From Corn Processing Rausch, Kent D.; Belyea, Ronald L. Applied Biochemistry and Biotechnology, Vol. 128, Issue 1 https://doi.org/10.1385/ABAB:128:1:047	journal	January 2006
Thermal and enzymatic treatments for the release of free ferulic acid from maize bran Saulnier, L.; Marot, C.; Elgorriaga, M. Carbohydrate Polymers, Vol. 45, Issue 3 https://doi.org/10.1016/S0144-8617(00)00259-9	journal	July 2001
Isolation and partial characterization of feruloylated oligosaccharides from maize bran Saulnier, Luc; Vigouroux, Jacqueline; Thibault, Jean-François Carbohydrate Research, Vol. 272, Issue 2 https://doi.org/10.1016/0008-6215(95)00053-V	journal	August 1995
Effect of substrate and cellulase concentration on simultaneous saccharification and fermentation of steam-pretreated softwood for ethanol production Stenberg, Kerstin; Boll�k, M�nika; R�czey, Kati Biotechnology and Bioengineering, Vol. 68, Issue 2 https://doi.org/10.1002/(SICI)1097-0290(20000420)68:2<204::AID-BIT9>3.0.CO;2-4	journal	April 2000
Effects of high product and substrate inhibitions on the kinetics and biomass and product yields during ethanol batch fermentation Thatipamala, R.; Rohani, S.; Hill, G. A. Biotechnology and Bioengineering, Vol. 40, Issue 2 https://doi.org/10.1002/bit.260400213	journal	June 1992
Fermentation of undetoxified sugarcane bagasse hydrolyzates using a two stage hydrothermal and mechanical refining pretreatment Wang, Zhaoqin; Dien, Bruce S.; Rausch, Kent D. Bioresource Technology, Vol. 261 https://doi.org/10.1016/j.biortech.2018.04.018	journal	August 2018