Fuel ethanol production from steam-pretreated corn stover using SSF at higher dry matter content
(2006) In Biomass & Bioenergy 30(10). p.863-869- Abstract
- Replacing fossil fuels by bio-fuels has many advantages, such as the reduction of CO2-emission to the atmosphere, the possibility for non-oil-producing countries to be self-sufficient in fuel, and increased local job opportunities. Bio-ethanol is such a promising renewable fuel. However, today it is produced from sugar or starch-raw materials that are relatively expensive. To lower the production cost of bio-ethanol the cost of the raw material must be reduced and the production process made more efficient. The production of bio-ethanol from corn stover using simultaneous saccharification and fermentation (SSF) at high dry matter content addresses both issues. Corn stover is an agricultural by-product and thus has a low economic value. SSF... (More)
- Replacing fossil fuels by bio-fuels has many advantages, such as the reduction of CO2-emission to the atmosphere, the possibility for non-oil-producing countries to be self-sufficient in fuel, and increased local job opportunities. Bio-ethanol is such a promising renewable fuel. However, today it is produced from sugar or starch-raw materials that are relatively expensive. To lower the production cost of bio-ethanol the cost of the raw material must be reduced and the production process made more efficient. The production of bio-ethanol from corn stover using simultaneous saccharification and fermentation (SSF) at high dry matter content addresses both issues. Corn stover is an agricultural by-product and thus has a low economic value. SSF at high dry matter content results in a high ethanol concentration in the fermented slurry, thereby decreasing the energy demand in the subsequent distillation step. In this study, SSF was performed on steam-pretreated corn stover at 5, 7.5 and 10% water-insoluble solids (WIS) with 2g/L hexosefermenting Saccharomyces cerevisiae (ordinary compressed baker's yeast). SSF at 10% WIS resulted in an ethanol yield of 74% based on the glucose content in the raw material and an ethanol concentration of 25 g/L. Neither higher yeast concentration (5 g/L) nor yeast cultivated on the liquid after the pretreatment resulted, under these conditions, in a higher overall ethanol yield. (c) 2006 Elsevier Ltd. All rights reserved. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/388578
- author
- Öhgren, Karin LU ; Rudolf, Andreas LU ; Galbe, Mats LU and Zacchi, Guido LU
- organization
- publishing date
- 2006
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- ethanol, concentration, corn stover, SO2, ethanol production, steam pretreatment, SSF
- in
- Biomass & Bioenergy
- volume
- 30
- issue
- 10
- pages
- 863 - 869
- publisher
- Elsevier
- external identifiers
-
- wos:000241067500006
- scopus:33748913909
- ISSN
- 1873-2909
- DOI
- 10.1016/j.biombioe.2006.02.002
- language
- English
- LU publication?
- yes
- id
- a9162754-c1c9-47da-b35e-15ab2d5c316c (old id 388578)
- date added to LUP
- 2016-04-01 12:20:16
- date last changed
- 2023-11-11 21:21:01
@article{a9162754-c1c9-47da-b35e-15ab2d5c316c,
abstract = {{Replacing fossil fuels by bio-fuels has many advantages, such as the reduction of CO2-emission to the atmosphere, the possibility for non-oil-producing countries to be self-sufficient in fuel, and increased local job opportunities. Bio-ethanol is such a promising renewable fuel. However, today it is produced from sugar or starch-raw materials that are relatively expensive. To lower the production cost of bio-ethanol the cost of the raw material must be reduced and the production process made more efficient. The production of bio-ethanol from corn stover using simultaneous saccharification and fermentation (SSF) at high dry matter content addresses both issues. Corn stover is an agricultural by-product and thus has a low economic value. SSF at high dry matter content results in a high ethanol concentration in the fermented slurry, thereby decreasing the energy demand in the subsequent distillation step. In this study, SSF was performed on steam-pretreated corn stover at 5, 7.5 and 10% water-insoluble solids (WIS) with 2g/L hexosefermenting Saccharomyces cerevisiae (ordinary compressed baker's yeast). SSF at 10% WIS resulted in an ethanol yield of 74% based on the glucose content in the raw material and an ethanol concentration of 25 g/L. Neither higher yeast concentration (5 g/L) nor yeast cultivated on the liquid after the pretreatment resulted, under these conditions, in a higher overall ethanol yield. (c) 2006 Elsevier Ltd. All rights reserved.}},
author = {{Öhgren, Karin and Rudolf, Andreas and Galbe, Mats and Zacchi, Guido}},
issn = {{1873-2909}},
keywords = {{ethanol; concentration; corn stover; SO2; ethanol production; steam pretreatment; SSF}},
language = {{eng}},
number = {{10}},
pages = {{863--869}},
publisher = {{Elsevier}},
series = {{Biomass & Bioenergy}},
title = {{Fuel ethanol production from steam-pretreated corn stover using SSF at higher dry matter content}},
url = {{http://dx.doi.org/10.1016/j.biombioe.2006.02.002}},
doi = {{10.1016/j.biombioe.2006.02.002}},
volume = {{30}},
year = {{2006}},
}