Search results
Results from the WOW.Com Content Network
The production of butanol by biological means was first performed by Louis Pasteur in 1861. [5] In 1905, Austrian biochemist Franz Schardinger found that acetone could similarly be produced. [5] In 1910 Auguste Fernbach (1860–1939) developed a bacterial fermentation process using potato starch as a feedstock in the production of butanol. [6]
The butanol was a by-product of fermentation (twice as much butanol was produced). The feedstocks for biobutanol are the same as those for ethanol: energy crops such as sugar beets , sugar cane , corn grain , wheat and cassava , prospective non-food energy crops such as switchgrass and even guayule in North America, as well as agricultural ...
Solventogenesis is the biochemical production of solvents (usually acetone and butanol) by Clostridium species. [1] It is the second phase of ABE fermentation. [2] This figure shows acidogenic and solventogenic phases of ABE fermentation by solventogenic Clostridium species.
The fermentation processes to produce propanol and butanol from cellulose are fairly tricky to execute, and the Weizmann organism (Clostridium acetobutylicum) currently used to perform these conversions produces an extremely unpleasant smell, and this must be taken into consideration when designing and locating a fermentation plant.
Syngas fermentation, also known as synthesis gas fermentation, is a microbial process. In this process, a mixture of hydrogen , carbon monoxide , and carbon dioxide , known as syngas , is used as carbon and energy sources, and then converted into fuel and chemicals by microorganisms .
Butanol (also called butyl alcohol) is a four-carbon alcohol with a formula of C 4 H 9 O H, which occurs in five isomeric structures (four structural isomers), from a straight-chain primary alcohol to a branched-chain tertiary alcohol; [1] all are a butyl or isobutyl group linked to a hydroxyl group (sometimes represented as BuOH, sec-BuOH, i-BuOH, and t-BuOH).
In 2008, a strain of Escherichia coli was genetically engineered to synthesize butanol; the genes were derived from Clostridium acetobutylicum. [1] [2] In 2013, the first microbial production of short-chain alkanes was reported [3] - which is a considerable step toward the production of gasoline.
Perstraction has been combined with the ABE (acetone butanol ethanol) fermentation for butanol production. [1] Butanol is toxic to the fermentation, therefore perstraction can be applied to remove the butanol from the vicinity of the bacteria as soon as it is produced. Liquid-liquid extraction (LLE) was combined with the ABE fermentation for in ...