Process for the fermentative production of acetone, butanol and ethanol
OwnerDavid A. Glassner, Mahendra K. Jain +1inventors
InventorsDavid A. Glassner, Mahendra K. Jain, Rathin Datta
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Abstract
A process including multistage continuous fermentation followed by batch fermentation with carefully chosen temperatures for each fermentation step, combined with an asporogenic strain of C. acetobutylicum and a high carbohydrate substrate concentration yields extraordinarily high butanol and total solvents concentrations.
Claims4
The improved process for the production of butanol, acetone and ethanol, by the fermentation of an asporogenic microorganism capable of producing butanol, acetone and ethanol upon a medium containing assimilable carbohydrate and nutrients which comprises conducting the fermentation in at least two continuous fermentors connected in series at a temperature of about 33.degree. to about 38.degree. C. at a pH of about 4.8 to about 5.5 to produce maximum growth of the microorganism and organic acids and then subjecting the effluent from the continuous fermentors to batch fermentation at a temperature of about 24.degree. C. to about 30.degree. C. to complete the fermentation.
Dependencies are inferred from the claim text.