2,3-Butanediol production from Jerusalem artichoke,Helianthus tuberosus,by Bacillus polymyxa ATCC 12 321. Optimization of k L a profile |
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Authors: | Jacques Fages Daniel Mulard Jean-Jacques Rouquet Jean-Luc Wilhelm |
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Affiliation: | (1) Centre de Recherches, CdF Chimie A.Z.F., 143 route d'Espagne, F-31057 Toulouse Cedex, France |
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Abstract: | Summary Optimization of d-(-)-2,3-butanediol production from the Jerusalem artichoke, Helianthus tuberosus, by Bacillus polymyxa ATCC 12 321 is described. The effects of initial sugar concentration and oxygen transfer rate were examined. The latter appears to be the most important parameter affecting the kinetics of the process. The best results (44 g·l-1 2,3-butanediol, productivity of 0.79 g·l-1·h-1) were obtained by setting an optimal kLa profile during batch culture. |
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