Effect of phosphate and ammonium ion concentrations on solvent production in defined medium byClostridium acetobutylicum | Zendy

Sunthorn Kanchanatawee | Zendy; I. S. Maddox | Zendy

Open Access

Effect of phosphate and ammonium ion concentrations on solvent production in defined medium byClostridium acetobutylicum

Author(s) -

Sunthorn Kanchanatawee,

I. S. Maddox

Publication year - 1990

Publication title -

journal of industrial microbiology

Language(s) - English

Resource type - Journals

ISSN - 0169-4146

DOI - 10.1007/bf01578201

Subject(s) - clostridium acetobutylicum , ammonium , phosphate , chemistry , acidogenesis , fermentation , solvent , nutrient , ammonium phosphate , food science , biochemistry , organic chemistry , anaerobic digestion , ethanol , butanol , fertilizer , methane

Summary Experiments have been performed in batch fermentation, using a defined medium, to investigate the effects of phosphate and ammonium ion concentrations on solvent production usingClostridium acetobutylicum. Solvent production occurred under conditions of either ammonium- or phosphate-limitation, but the optimum conditions were observed to be where both of these nutrients were slightly in excess of growth requirements. A greater excess of nutrients caused the fermentation to be acidogenic rather than solventogenic.

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