Abstract
A continuous process was employed to improve the volumetric productivity of bioethanol production from cassava mash containing sludge and to simplify the process of ethanol production from cassava. After raw cassava powder was liquefied, it was used directly in a continuous process without sludge filtration or saccharification. A fermentor consisting of four linked stirrer tanks was used for simultaneous saccharification and continuous fermentation (SSCF). Although the mash contained sludge, continuous fermentation was successfully achieved. We chose the dilution rate on the basis of the maximum saccharification time; the highest volumetric productivity and ethanol yield were observed at a dilution rate of 0.028h -1. The volumetric productivity, final ethanol concentration, and % of theoretical ethanol yield were 2.41g/Lh, 86.1g/L, and 91%, respectively. This SSCF process using the self-flocculating yeast Saccharomyces cerevisiae CHFY0321 illustrates the possibility of realizing cost-effective bioethanol production by eliminating additional saccharification and filtration processes. In addition, flocculent CHFY0321, which our group developed, showed excellent fermentation results under continuous ethanol production.
| Original language | English |
|---|---|
| Pages (from-to) | 584-589 |
| Number of pages | 6 |
| Journal | Journal of Biotechnology |
| Volume | 157 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 2012 Feb 20 |
Fingerprint
Keywords
- Bioethanol
- Cassava mash
- Continuous process
- Simultaneous saccharification and continuous fermentation (SSCF)
ASJC Scopus subject areas
- Biotechnology
- Applied Microbiology and Biotechnology
Cite this
Simultaneous saccharification and continuous fermentation of sludge-containing mash for bioethanol production by Saccharomyces cerevisiae CHFY0321. / Moon, Se Kwon; Kim, Seung Wook; Choi, Gi Wook.
In: Journal of Biotechnology, Vol. 157, No. 4, 20.02.2012, p. 584-589.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Simultaneous saccharification and continuous fermentation of sludge-containing mash for bioethanol production by Saccharomyces cerevisiae CHFY0321
AU - Moon, Se Kwon
AU - Kim, Seung Wook
AU - Choi, Gi Wook
PY - 2012/2/20
Y1 - 2012/2/20
N2 - A continuous process was employed to improve the volumetric productivity of bioethanol production from cassava mash containing sludge and to simplify the process of ethanol production from cassava. After raw cassava powder was liquefied, it was used directly in a continuous process without sludge filtration or saccharification. A fermentor consisting of four linked stirrer tanks was used for simultaneous saccharification and continuous fermentation (SSCF). Although the mash contained sludge, continuous fermentation was successfully achieved. We chose the dilution rate on the basis of the maximum saccharification time; the highest volumetric productivity and ethanol yield were observed at a dilution rate of 0.028h -1. The volumetric productivity, final ethanol concentration, and % of theoretical ethanol yield were 2.41g/Lh, 86.1g/L, and 91%, respectively. This SSCF process using the self-flocculating yeast Saccharomyces cerevisiae CHFY0321 illustrates the possibility of realizing cost-effective bioethanol production by eliminating additional saccharification and filtration processes. In addition, flocculent CHFY0321, which our group developed, showed excellent fermentation results under continuous ethanol production.
AB - A continuous process was employed to improve the volumetric productivity of bioethanol production from cassava mash containing sludge and to simplify the process of ethanol production from cassava. After raw cassava powder was liquefied, it was used directly in a continuous process without sludge filtration or saccharification. A fermentor consisting of four linked stirrer tanks was used for simultaneous saccharification and continuous fermentation (SSCF). Although the mash contained sludge, continuous fermentation was successfully achieved. We chose the dilution rate on the basis of the maximum saccharification time; the highest volumetric productivity and ethanol yield were observed at a dilution rate of 0.028h -1. The volumetric productivity, final ethanol concentration, and % of theoretical ethanol yield were 2.41g/Lh, 86.1g/L, and 91%, respectively. This SSCF process using the self-flocculating yeast Saccharomyces cerevisiae CHFY0321 illustrates the possibility of realizing cost-effective bioethanol production by eliminating additional saccharification and filtration processes. In addition, flocculent CHFY0321, which our group developed, showed excellent fermentation results under continuous ethanol production.
KW - Bioethanol
KW - Cassava mash
KW - Continuous process
KW - Simultaneous saccharification and continuous fermentation (SSCF)
UR - http://www.scopus.com/inward/record.url?scp=84857456440&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84857456440&partnerID=8YFLogxK
U2 - 10.1016/j.jbiotec.2011.06.009
DO - 10.1016/j.jbiotec.2011.06.009
M3 - Article
C2 - 21723335
AN - SCOPUS:84857456440
VL - 157
SP - 584
EP - 589
JO - Journal of Biotechnology
JF - Journal of Biotechnology
SN - 0168-1656
IS - 4
ER -