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Up-concentration of sugars in pretreated-rice straw by an osmotic pressure-driven method.
- Source :
-
Biochemical Engineering Journal . May2017, Vol. 121, p13-16. 4p. - Publication Year :
- 2017
-
Abstract
- Forward osmosis (FO), driven by high osmotic pressure, was used for the first time for bioethanol production from lignocellulosic biomass. A commercial membrane, TFC-ES (Hydration Technology Innovation), was used and 3.6 M triethylamine (TEA) was chosen as the draw solution because the concentration ratio against a model xylose solution was similar to that achieved with 2.5 M NaCl. The liquid fraction of hot-water-pretreated rice straw was concentrated by using the FO membrane. The initial sugar concentration of 199 mM increased to 825 and 1612 mM after 48 and 72 h of FO concentration, respectively, and these values were much higher than those obtained from nanofiltration. Simultaneous saccharification and fermentation of the liquid fraction after 48 h of FO concentration by xylose-fermenting recombinant Saccharomyces cerevisiae produced 17.7 g/L of ethanol after 24 h fermentation. Thus, the FO process has tremendous potential to up-concentrate sugars obtained from lignocellulosic biomass. [ABSTRACT FROM AUTHOR]
- Subjects :
- *SUGARS
*RICE straw
*OSMOTIC pressure
*ETHANOL as fuel
*LIGNOCELLULOSE
Subjects
Details
- Language :
- English
- ISSN :
- 1369703X
- Volume :
- 121
- Database :
- Academic Search Index
- Journal :
- Biochemical Engineering Journal
- Publication Type :
- Academic Journal
- Accession number :
- 121937829
- Full Text :
- https://doi.org/10.1016/j.bej.2017.01.012