Clostridium ljungdahlii is species of anaerobic, rod-shaped, motile, endospore-forming, gram-positive bacterium from the family Clostridiaceae.Tanner, R.S., L.M. Miller, and D. Yang (1993) Clostridium ljungdahlii sp. nov., an acetogenic species in clostridial rRNA homology group I. Int. J. Syst. Bacteriol. 43:232-6. It is named after the Swedish biochemist Lars G. Ljungdahl.lpsn.dsmz.de, list of prokaryotic names with standing nomenclature. When originally harvested from the waste matter of animals, C. ljungdahlii tended to produce acetate with respect to ethanol, but a major undertaking to increase the ethanol-to-acetate ratio was initiated. A 1993 publication by researchers from the University of Arkansas, in cooperation with Oak Ridge National Laboratories, showed results from a series of continuous reactor studies caused a major change in the bacterium's preference for ethanol production, which increased from <0.1 g/L to 1.8 g/L in a continuous stirred tank reactor.
This species can ferment certain components of syngas into ethanol.Younesi, H., G. Najafpour, and A.R. Mohamed (2005) Ethanol and acetate production from synthesis gas via fermentation processes using anaerobic bacterium, Clostridium ljungdahlii. Biochem. Eng. J. 27:110-119 It also possesses properties of electrosynthesis, producing acetate on cathodes.
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External links Type strain of Clostridium ljungdahlii at BacDive - the Bacterial Diversity Metadatabase