Butanol production by Clostridium pasteurianum NRRL-598 using corn steep liquor as nutrient source / Produção de butanol por Clostridium pasteurianum NRRL-598 usando licor de maceração de milho como fonte de nutrientes

Larissa C. P. Ribeiro, Maria Alice Z. Coelho, Tatiana F. Ferreira


Butanol has become an interesting substitute for ethanol in additives and fuel applications due to its physical chemical properties. Several Clostridium strains are able to produce ABE (acetone, butanol and ethanol) solvents by fermentation. Efforts have been made to reduce cost of butanol biotechnological production in order to become this route competitive when compared to petrochemical technology. This study aimed to evaluate the use of corn steep liquor, a residue of corn industry, as unique nutrient source in culture medium for butanol production by Clostridium pasteurianum NRRL B-598. The strain is capable of producing butanol using only corn steep liquor as nutrient source. The yield was 0.30 gButanol/gglucose  and the butanol productivity was 0.11 g.L-1.h-1 using 20 g.L-1 of corn steep liquor.




Butanol, corn steep liquor, Clostridium pasteurianum, ABE fermentation.

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DOI: https://doi.org/10.34117/bjdv6n7-238


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