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Lignocellulosic butanol production from Napier grass using semi-simultaneous saccharification fermentation.
- Source :
-
Bioresource Technology . May2017, Vol. 231, p101-108. 8p. - Publication Year :
- 2017
-
Abstract
- Napier grass is a potential feedstock for biofuel production because of its strong adaptability and wide availability. Compositional analysis has been done on Napier grass which was collected from a local area of Taiwan. By comparing acid- and alkali-pretreatment, it was found that the alkali-pretreatment process is favorable for Napier grass. An overall glucose yield of 0.82 g/g-glucose total can be obtained with the combination of alkali-pretreatment (2.5 wt% NaOH, 8 wt% sample loading, 121 °C, and a reaction time of 40 min) and enzymatic hydrolysis (40 FPU/g-substrate). Semi-simultaneous saccharification fermentation (sSSF) was carried out, where enzymatic hydrolysis and ABE fermentation were operated in the same batch. It was found that after 24-h hydrolysis, followed by 96-h fermentation, the butanol and acetone concentrations reached 9.45 and 4.85 g/L, respectively. The butanol yield reached 0.22 g/g-sugar glucose+xylose . Finally, the efficiency of butanol production from Napier grass was calculated at 31%. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 09608524
- Volume :
- 231
- Database :
- Academic Search Index
- Journal :
- Bioresource Technology
- Publication Type :
- Academic Journal
- Accession number :
- 121402746
- Full Text :
- https://doi.org/10.1016/j.biortech.2017.01.039