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Production of acetone and butanol by batch and continuous culture ofClostridium acetobutylicumunder nitrogen limitation

✍ Scribed by F. Monot; J. M. Engasser

Publisher
Springer Netherlands
Year
1983
Tongue
English
Weight
399 KB
Volume
5
Category
Article
ISSN
0141-5492

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✦ Synopsis

Acetone and butanol can be produced by batch and continuous culture of CZostridium acetobutylicum on a nitrogen limited synthetic medium. When cells are grown on a high glucose concentration, conversion yields close to 0.3 g solvents/g glucose are obtained at pH 5.0. The fermentation kinetics are similar in batch and continuous cultures.

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Non-production of acetone and butanol by
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✍ J. C. Gottschal; J. G. Morris πŸ“‚ Article πŸ“… 1981 πŸ› Springer Netherlands 🌐 English βš– 439 KB

## Normal amounts of acetone and butanol wcrc formed during the fermentation of glucose in a defined minimal medium in pH-regulated batch cultures (pH 5.0). No solventogenesis occurred during glucose-or ammonium-limited growth in a chemostat. Moreover, the capacity toproduce solvents appeared to

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Turbidostat cultures of Clostridium acetobutylicum were analysed with respect to their fermentation products after steady states were obtained at various cell densities. It was found that at low densities the fermentation of glucose was essentially acidogenic in nature, whereas acetone and butanol w