Location: Commodity Utilization ResearchTitle: Biobutanol production from sweet sorghum biorefinery byproducts
Submitted to: Meeting Abstract
Publication Type: Abstract Only
Publication Acceptance Date: 4/5/2018
Publication Date: 5/15/2018
Citation: Klasson, K.T., Qureshi, N., Heckemeyer, M., Eggleston, G. 2018. Biobutanol production from sweet sorghum biorefinery byproducts(abstract). Advances in Sugar Crop Processing and Conversion.8.
Technical Abstract: Acetone, butanol, and ethanol can be produced by Clostridia bacteria in anaerobic fermentation. We have previously shown that sweet sorghum syrup can be used for biobutanol production but sweet sorghum sugars have competing product opportunities; e.g., alcohol beverages; that may be more profitable. Therefore we investigated if other sweet sorghum biorefinery streams could be used as raw material for biobutanol production. As many of these organisms are capable of using starch as carbons source, we collected starch-rich sludge from the clarification of sweet sorghum juice and investigated if this material could be used as starting material for butanol production. The results show that, with the addition of a nitrogen source, it was possible to produce the solvents at titers similar, or higher, to those obtained when glucose was used as a substrate.