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Comparison of bioethanol production of simultaneous saccharification & fermentation and separation hydrolysis & fermentation from cellulose-rich barley straw
| Content Provider | Semantic Scholar |
|---|---|
| Author | Won, Kyung Yoen Kim, Young Sang 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 HTM / HTML |
| DOI | 10.1007/s11814-012-0019-y |
| Alternate Webpage(s) | https://www.cheric.org/PDF/KJChE/KC29/KC29-10-1341.pdf |
| Alternate Webpage(s) | https://doi.org/10.1007/s11814-012-0019-y |
| Volume Number | 29 |
| Journal | Korean Journal of Chemical Engineering |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
