Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 355337
Title Microbiology of synthesis gas fermentation for biofuel production
Author(s) Henstra, A.M.; Sipma, J.; Rinzema, A.; Stams, A.J.M.
Source Current Opinion in Biotechnology 18 (2007)3. - ISSN 0958-1669 - p. 200 - 206.
Department(s) Microbiological Laboratory
Sub-department of Environmental Technology
Bioprocess Engineering
Publication type Refereed Article in a scientific journal
Publication year 2007
Keyword(s) membrane biofilm reactor - carbon-monoxide - sp-nov. - gen. nov. - carboxydothermus-hydrogenoformans - butyribacterium-methylotrophicum - clostridium-thermoaceticum - hydrogenogenic bacterium - rhodospirillum-rubrum - oxidized contaminants
Abstract A significant portion of biomass sources like straw and wood is poorly degradable and cannot be converted to biofuels by microorganisms. The gasification of this waste material to produce synthesis gas (or syngas) could offer a solution to this problem, as microorganisms that convert CO and H2 (the essential components of syngas) to multicarbon compounds are available. These are predominantly mesophilic microorganisms that produce short-chain fatty acids and alcohols from CO and H2. Additionally, hydrogen can be produced by carboxydotrophic hydrogenogenic bacteria that convert CO and H2O to H2 and CO2. The production of ethanol through syngas fermentation is already available as a commercial process. The use of thermophilic microorganisms for these processes could offer some advantages; however, to date, few thermophiles are known that grow well on syngas and produce organic compounds. The identification of new isolates that would broaden the product range of syngas fermentations is desirable. Metabolic engineering could be employed to broaden the variety of available products, although genetic tools for such engineering are currently unavailable. Nevertheless, syngas fermenting microorganisms possess advantageous characteristics for biofuel production and hold potential for future engineering efforts.
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