geoscience.net logo
+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Continuous production of butanol by Clostridium acetobutylicum immobilized in a fibrous bed bioreactor


, : Continuous production of butanol by Clostridium acetobutylicum immobilized in a fibrous bed bioreactor. Applied Biochemistry and Biotechnology 115(1/3): 887-898

We explored the influence of dilution rate and pH in continuous cultures of Clostridium acetobutylicum. A 200-mL fibrous bed bioreactor was used to produce high cell density and butyrate concentrations at pH 5.4 and 35degreesC. By feeding glucose and butyrate as a cosubstrate, the fermentation was maintained in the solventogenesis phase, and the optimal butanol productivity of 4.6 g/(L h) and a yield of 0.42 g/g were obtained at a dilution rate of 0.9 h-1 and pH 4.3. Compared to the conventional acetone-butanol-ethanol fermentation, the new fermentation process greatly improved butanol yield, making butanol production from corn an attractive alternative to ethanol fermentation.

US$19.90

PMID: 15054240

DOI: 10.1385/abab:115:1-3:0887


Other references

Anonymous, 1999: The work of the Foundation of Nursing Studies. NlmCategory="UNASSIGNED">THE FOUNDATION of Nursing Studies (FoNS) is a small and relatively young organisation. It has gained wide credibility nationally and in Europe, working with practitioners and policy makers at all levels, and a...

Shen; Pan; Pollak; Sacks, 1988: Electromodulation mechanisms for the uncoupled and coupled states of a GaAs/Ga0.82Al. Physical Review. B, Condensed Matter 37(18): 10919-10922

Xiao, C.; Gu, Y.; Zhou, C-Yi.; Wang, L.; Zhang, M-Min.; Ruan, D-Yun., 2006: Pb2+ impairs GABAergic synaptic transmission in rat hippocampal slices: a possible involvement of presynaptic calcium channels. Pb2+ is a common pollutant that causes a wide variety of detrimental effects on developing central nervous system, including cognitive deficit. However, the mechanisms of Pb2+ neurotoxicity remain to be elucidated. GABAergic synaptic transmission...

Webb, E., 2014: International Phase III clinical trial demonstrates efficacy of a new second-line drug for gastric cancer. ImmunoTherapy 5(12): 1276-1276

Morgan, K., 1970: Gene flow and structure of United States Negro populations. Social Biology 17(4): 316-323

Fel'dman, G.L., 1961: The effect of deprivation of sleep on electrical activity and other indices of cerebral activity in animals. Translated from Fiziol. Zhur. SSSR 47(2): 169-177. 1961. Changes developed in a number of indices of the functional state of the brain in animals after 36 hours of wakefulness: a-rhythm oscillations became slower but larger; the reaction of depres...

Knorre, A.G., 1978: Soviet embryology on the 60th anniversary of the Great October Socialist Revolution. Arkhiv Anatomii, Gistologii i Embriologii 74(4): 5-20

Fischer, Ed, 1929: A phalloid from Palestine; P roseus and the genus Itajahya. An account of the structural anatomy of a phalloid obtained from Palestine. The plant is considered the same as P. roseus, described from Egypt in 1813, but the structure is that of the genus Itajahya Moller. It differs from I. galericulata Moll....

Donoghue, P.J.; Helquist, P.; Norrby, P-Ola.; Wiest, O., 2008: Development of a Q2MM Force Field for the Asymmetric Rhodium Catalyzed Hydrogenation of Enamides. The rhodium catalyzed asymmetric hydrogenation of enamides to generate amino acid products and derivatives is a widely used method to generate unnatural amino acids. The choice of a chiral ligand is of utmost importance in this reaction and is oft...

Fodor, I.; Kucsera, L.; Fodor, N.; Palfi, V.; Grabko, V.I., 2000: Gene immunization of mice with plasmid DNA expressing rabies virus glycoprotein. Plasmid vectors were constructed that expressed the full-length Vnukovo-32 rabies virus glycoprotein G. The gene vaccines were evaluated for their ability to elicit neutralizing antibodies and to protect BALB/c mice against lethal rabies virus cha...