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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Enhancement of 1,3-propanediol production by Klebsiella pneumoniae with fumarate addition.

Addition of 5 mM: fumarate to cultures of Klebsiella pneumoniae enhanced the rate of glycerol consumption and the production of 1,3-propanediol (PDO). Compared to the control, the activity of glycerol dehydrogenase increased by 35, 33 and 46%, the activity of glycerol dehydratase increased by 160, 210 and 115%, and the activity of 1,3-propanediol oxidoreductase increased by 25, 39 and 85% when, respectively, 5, 15 and 25 mM: fumarate were provided. At the same time, the ratio of NAD+ to NADH decreased by 20, 23 and 29%. Using a 5 l bioreactor with 5 mM: fumarate addition, the specific rate of glycerol consumption and the productivity of PDO was 30 mmol/l h and 17 mmol/l h, respectively, both increased by 35% over the control.[1]

References

  1. Enhancement of 1,3-propanediol production by Klebsiella pneumoniae with fumarate addition. Lin, R., Liu, H., Hao, J., Cheng, K., Liu, D. Biotechnol. Lett. (2005) [Pubmed]
 
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