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EFFICIENT PRODUCTION OF BIOETHANOL FROM CORN STOVER BY PRETREATMENT WITH A COMBINATION OF SULFURIC ACID AND SODIUM HYDROXIDE.
- Source :
-
Preparative Biochemistry & Biotechnology . Oct2013, Vol. 43 Issue 7, p682-695. 14p. - Publication Year :
- 2013
-
Abstract
- Corn stover is the most abundant agricultural residue in China and a valuable reservoir for bioethanol production. In this study, we proposed a process for producing bioethanol from corn stover; the pretreatment prior to presaccharification, followed by simultaneous saccharification and fermentation (SSF) by using a flocculating Saccharomyces cerevisiae strain, was optimized. Pretreatment with acid–alkali combination (1% H2SO4, 150°C, 10 min, followed by 1% NaOH, 80°C, 60 min) resulted in efficient lignin removal and excellent recovery of xylose and glucose. A glucose recovery efficiency of 92.3% was obtained by enzymatic saccharification, when the pretreated solid load was 15%. SSF was carried out at 35°C for 36 hr after presaccharification at 50°C for 24 hr, and an ethanol yield of 88.2% was achieved at a solid load of 15% and an enzyme dosage of 15 FPU/g pretreated corn stover. [ABSTRACT FROM AUTHOR]
- Subjects :
- *ETHANOL as fuel
*CORN stover
*LIGNOCELLULOSE
*BIOMASS
*FEEDSTOCK
Subjects
Details
- Language :
- English
- ISSN :
- 10826068
- Volume :
- 43
- Issue :
- 7
- Database :
- Academic Search Index
- Journal :
- Preparative Biochemistry & Biotechnology
- Publication Type :
- Academic Journal
- Accession number :
- 88212849
- Full Text :
- https://doi.org/10.1080/10826068.2013.773338