Biobutanol production from sugarcane bagasse hydrolysate generated with the assistance of gamma-valerolactone
| Autor: | Pingkai Ouyang, Honghua Jia, Chao Wang, Jiangfeng Ma, Hao Wu, Min Jiang, Ren Xiaoqian, Kong Xiangping, Hao Xu, Ce Wei, Aiyong He |
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| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
Butanol Bioengineering 010501 environmental sciences 01 natural sciences Applied Microbiology and Biotechnology Biochemistry Hydrolysate gamma-Valerolactone chemistry.chemical_compound Hydrolysis chemistry 010608 biotechnology Acetone Fermentation Food science Bagasse Sugar 0105 earth and related environmental sciences |
| Zdroj: | Process Biochemistry. 51:1538-1543 |
| ISSN: | 1359-5113 |
| Popis: | Production of butanol from renewable resources is an attractive approach for introducing an economically competitive process. In the present study, sugarcane bagasse was hydrolyzed with the assistance of gamma-valerolactone (GVL). After phase separation, direct hydrolysis of sugarcane bagasse resulted in 24.08 g/L total sugars. Removal of lignin significantly increased the total sugar concentration to 248.41 g/L with a high yield of 0.87 g/g. Due to the low level of inhibitors in hydrolysate, the obtained hydrolysate was used as substrate for biobutanol production. Batch fermentation with 41 g/L sugars produced a high ABE concentration of 14.26 g/L, including 4.1 g/L acetone, 9.3 g/L butanol and 0.86 g/L ethanol. The fermentation with 61 g/L sugars greatly inhibited cell growth and solvent production due to the high concentration of NaCl and GVL. This study demonstrates that sugarcane bagasse hydrolyzed in GVL/water solution could be an alternative substrate for the low-cost production of biobutanol. |
| Databáze: | OpenAIRE |
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