Article ID Journal Published Year Pages File Type
679367 Bioresource Technology 2016 12 Pages PDF
Abstract
Simultaneous saccharification and co-fermentation (SSCF) of steam exploded corn stover (SECS) was investigated at 5-25% solid loadings compared with other conversion processes. SECS was washed with a 15-fold excess of deionized water to remove inhibitors of hydrolysis and fermentation. The concentration, yield, and productivity of ethanol was 34.3 g/L, 90.0%, 2.61 g/L/h in the co-fermentation of 60 g/L glucose and 10 g/L xylose by Saccharomyces cerevisiae IPE003. Ethanol concentration and productivity increased with increasing solid loading while ethanol yield decreased in all conversion processes of SECS. Glucan and xylan conversion was 82.0% and 82.1% in SSCF at 20% solid loading, respectively, while the concentration, yield and productivity of ethanol was 60.8 g/L, 75.3% and 0.63 g/L/h. The feeding strategy of SECS addition within 24 h improved the SSCF performance. Therefore, SSCF increased ethanol productivity and was an effective conversion process for ethanol production at high solid loading.
Related Topics
Physical Sciences and Engineering Chemical Engineering Process Chemistry and Technology
Authors
, ,