Shin, K.C. and Hong, B. and Fan, L.T. (1982) Fermentative production of butanol from sorghum molasses. In: Symposium of Feed, Fuels and Chemicals from Wood and Agricultural Residues, 12-17 September, 1982, Kansas City.
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Abstract
A strain, Clostridium acetobutylicum ATCC 4259, suitable for butanol-acetone fermentation of sorghum molasses was selected from several strains of the American Type Culture Collection (ATCC). It was cultivated in the composition-optimized sorghum molasses medium. The microbial growth and sugar consumption pattern in the sorghum molasses medium exhibited a typical diauxie phenomenon. The results strongly suggest that the difficulty encountered by the Weizmann type of organisms in butanol-acetone fermentation of molasses is due to the diauxie phenomenon causing a significant decrease in the solvent production rate. Acid hydrolysis of sorghum molasses minimizes the occurrence of the phenomenon, thereby remarkably increasing the solvent yield. The final solvent concentrations in the inverted molasses medium were butanol, 1.0% (w/v); acetone, 0.37% (w/v); ethanol, 0.18% (w/v); and total solvent, 1.55% (w/v). The total solvent yield in the inverted sorghum molasses medium was 30.3% based on the weight of sugar consumed. Effects of the temperature, agitation and heat-shocking were also investigate
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Author Affiliation: | Department of Chemlcal Engineering, Kansas State University, Manhattan, Kansas |
| Subjects: | Crop Improvement |
| Divisions: | Sorghum |
| Depositing User: | Ms K Syamalamba |
| Date Deposited: | 05 Mar 2012 10:06 |
| Last Modified: | 05 Mar 2012 11:16 |
| URI: | http://eprints.icrisat.ac.in/id/eprint/3511 |
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