NDLI: Comparison of bioethanol production of simultaneous saccharification & fermentation and separation hydrolysis & fermentation from cellulose-rich barley straw

Content Provider	Springer Nature Link
Author	Won, Kyung Yoen Kim, Young Soo Oh, Kyeong Keun
Copyright Year	2012
Abstract	Cellulose rich barley straw, which has a glucan content of 62.5%, followed by dilute acid pretreatment, was converted to bioethanol by simultaneous saccharification and fermentation (SSF). The optimum fractionation conditions for barley straw were an acid concentration of 1% (w/v), a reaction temperature of 158 °C and a reaction time of 15 min. The maximum saccharification of glucan in the fractionated barley straw was 70.8% in 72 h at 60 FPU/gglucan, while the maximum digestibility of the untreated straw was only 18.9%. With 6% content WIS (water insoluble solid) for the fractionated barley straw, 70.5 and 83.2% of the saccharification yield were in SHF and SSF (representing with glucose equivalent), respectively, and a final ethanol concentration of 18.46 g/L was obtained under the optimized SSF conditions: 34 °C with 15 FPU/g-glucan enzyme loading and 1 g dry yeast cells/L. The results demonstrate that the SSF process is more effective than SHF for bioethanol production by around 18%.
Starting Page	1341
Ending Page	1346
Page Count	6
File Format	PDF
ISSN	02561115
Journal	Korean Journal of Chemical Engineering
Volume Number	29
Issue Number	10
e-ISSN	19757220
Language	English
Publisher	Springer US
Publisher Date	2012-03-21
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Barley Straw Bioethanol Fractionation Simultaneous Saccharification Fermentation (SSF) Pretreatment Industrial Chemistry/Chemical Engineering Materials Science Biotechnology Catalysis
Content Type	Text
Resource Type	Article
Subject	Chemistry Chemical Engineering

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