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 si
Non-production of acetone and butanol byClostridiumacetobutylicumduring glucose- and ammonium- limitation in continuous culture
β Scribed by J. C. Gottschal; J. G. Morris
- Publisher
- Springer Netherlands
- Year
- 1981
- Tongue
- English
- Weight
- 439 KB
- Volume
- 3
- Category
- Article
- ISSN
- 0141-5492
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β¦ Synopsis
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 be lost during growth in continuous culture, apparently together with the ability to form endospores.
π SIMILAR VOLUMES
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