期刊
JOURNAL OF INDUSTRIAL MICROBIOLOGY & BIOTECHNOLOGY
卷 40, 期 2, 页码 209-215出版社
SPRINGER HEIDELBERG
DOI: 10.1007/s10295-012-1219-5
关键词
Isopropanol; n-butanol; Wood pulp; Immobilization; Clostridium beijerinckii
资金
- Tekes (The Finnish Funding Agency for Technology and Innovation, Finland)
The study was focused on developing a continuous method to produce an alcohol mixture suitable to be used as a gasoline supplement. The immobilized column reactor with wood pulp fibers was successfully used for the continuous production of butanol and isopropanol using Clostridium beijerinckii DSM 6423. A sugar mixture (glucose, mannose, galactose, arabinose and xylose) representing lignocellulose hydrolysate was used as a substrate for the production of solvents. The effect of dilution rate on solvent production was studied during continuous operation. The maximum total solvent concentration of 11.99 g/l was obtained at a dilution rate of 0.16 h(-1). The maximum solvent productivity (5.58 g/l h) was obtained at a dilution rate of 1.5 h(-1). The maximum solvent yield of 0.45 g/g from sugar mixture was observed at 0.25 h(-1). The system will be further used for the solvent production using wood hydrolysate as a substrate.
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