Results 71 to 80 of about 841 (169)

Optimization of Batch Dark Fermentation of Chlorella sp. Using Mixed-Cultures for Simultaneous Hydrogen and Butyric Acid Production

open access: yesEnergies, 2019
This paper reports on the optimum conditions for simultaneous hydrogen and butyric acid production from microalgae (Chlorella sp.) using enriched anaerobic mixed cultures as inoculum.
Nikannapas Usmanbaha   +4 more
doaj   +1 more source

Novel electrochemical strategies for the microbial conversion of CO2 into biomass and volatile fatty acids using a fluid‐like bed electrode in a three‐phase reactor

open access: yesMicrobial Biotechnology, Volume 17, Issue 1, January 2024.
Overall, this study demonstrates the feasibility of employing a fluidized electrode with CO2 and electricity as the energy source for generating microbial biomass and carboxylic acids. Planktonic cell biomass was produced under continuous culture at values as high as ca. 0.7 g L−1 dry weight.
María Llorente   +4 more
wiley   +1 more source

Metabolome Remodeling during the Acidogenic-Solventogenic Transition in Clostridium acetobutylicum

open access: yes, 2011
The fermentation carried out by the biofuel producer Clostridium acetobutylicum is characterized by two distinct phases. Acidogenesis occurs during exponential growth and involves the rapid production of acids (acetate and ...
Daniel Amador-Noguez   +4 more
core   +1 more source

Biomass concentration profiles during the two metabolic phases of fermentation.

open access: yes, 2016
The pH level 4.5 corresponds to the stationary biomass concentration during solventogenesis, while the pH level 6.0 corresponds to the exponential biomass growth during acidogenesis.
Edward A. Buehler (3144129)   +1 more
core   +1 more source

Concentration profiles for ABE solvents and acids at acidogenic pH (6.0) and solventogenic pH (4.5).

open access: yes, 2016
At time 500 hr the culture pH is switched from 6.0 to 4.5 to demonstrate the shift from acidogenesis to solventogenesis.
Edward A. Buehler (3144129)   +1 more
core   +1 more source

Genetic factors affecting the regulation of solventogenesis in Clostridium acetobutylicum ATCC824

open access: yes, 2005
The obligate anaerobe Clostridium acetobutylicum produces the acids acetate and butyrate during exponential growth. At the transition to stationary growth, these acids are converted to the solvents acetone and butanol.
Scotcher, Miles Christopher
core  

Role of intra-cellular and extra-cellular cues in triggering the switch from acidogenesis to solventogenesis in Clostridium acetobutylicum

open access: yes, 2012
Biobutanol can be used as efficient vehicle fuel as its properties are closer to gasoline and comparatively advantageous over other fermentation based biofuels.
Saini, Supreet   +2 more
core  

Draft genome sequence of Clostridium sp. Maddingley, isolated from coal-seam gas formation water

open access: yes, 2013
Clostridium sp. Maddingley was isolated as an axenic culture from a brown coal-seam formation water sample collected from Victoria, Australia. It lacks the solventogenesis genes found in closely related clostridial strains.
Rosewarne, C.P.   +6 more
core   +1 more source

Direct selection of Clostridium acetobutylicum fermentation mutants by a proton suicide method [PDF]

open access: yes, 1990
Clostridium acetobutylicum ATCC 10132 mutants altered in acetic acid synthesis or in the shift to solventogenesis were directly selected by a proton suicide method after mutagenic treatment, by using bromide and bromate as selective agents.
Cueto, P.H., Mendez, B.S.
core   +1 more source

The mass balance equations for all metabolites in the continuous C. acetobutylicum culture (see Fig 1).

open access: yes, 2016
In all equations, [ ] denotes metabolite concentration (mM), R refers to rate equations (mM h−1), r is the base enzyme production rate during acidogenesis (mM h−1), r+ is the upregulated enzyme production rate during solventogenesis (mM h−1), H is ...
Edward A. Buehler (3144129)   +1 more
core   +1 more source

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