Journal ArticleDOI
Biobutanol: An attractive biofuel
TLDR
The best‐studied bacterium to perform a butanol fermentation is Clostridium acetobutylicum, and its genome has been sequenced, and the regulation of solvent formation is under intensive investigation, opening the possibility to engineer recombinant strains with superior biobutanol‐producing ability.Abstract:
Biofuels are an attractive means to prevent a further increase of carbon dioxide emissions. Currently, gasoline is blended with ethanol at various percentages. However, butanol has several advantages over ethanol, such as higher energy content, lower water absorption, better blending ability, and use in conventional combustion engines without modification. Like ethanol, it can be produced fermentatively or petrochemically. Current crude oil prices render the biotechnological process economic again. The best-studied bacterium to perform a butanol fermentation is Clostridium acetobutylicum. Its genome has been sequenced, and the regulation of solvent formation is under intensive investigation. This opens the possibility to engineer recombinant strains with superior biobutanol-producing ability.read more
Citations
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Green and sustainable manufacture of chemicals from biomass: state of the art
TL;DR: In this article, various strategies for the valorisation of waste biomass to platform chemicals, and the underlying developments in chemical and biological catalysis which make this possible, are critically reviewed, and three possible routes for producing a bio-based equivalent of the large volume polymer, polyethylene terephthalate (PET) are delineated.
Journal ArticleDOI
Genomics of cellulosic biofuels
Edward M. Rubin,Edward M. Rubin +1 more
TL;DR: Genomic information gathered from across the biosphere, including potential energy crops and microorganisms able to break down biomass, will be vital for improving the prospects of significant cellulosic biofuel production.
Journal ArticleDOI
Fermentative butanol production by clostridia
TL;DR: This article reviews biotechnological production of butanol by clostridia and some relevant fermentation and downstream processes and the strategies for strain improvement by metabolic engineering and further requirements to make fermentative butanol production a successful industrial process.
Journal ArticleDOI
Catalytic routes for the conversion of biomass into liquid hydrocarbon transportation fuels
TL;DR: In this article, the main routes available to carry out such deep chemical transformation (e.g., gasification, pyrolysis, and aqueous-phase catalytic processing) are described.
Journal ArticleDOI
Clostridium ljungdahlii represents a microbial production platform based on syngas
Michael Köpke,Claudia Held,Sandra Hujer,Heiko Liesegang,Arnim Wiezer,Antje Wollherr,Armin Ehrenreich,Wolfgang Liebl,Gerhard Gottschalk,Peter Dürre +9 more
TL;DR: In this article, the complete genome of Clostridium ljungdahlii was sequenced and the authors revealed a third mode of anaerobic homoacetogenic metabolism.
References
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Journal ArticleDOI
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Journal ArticleDOI
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TL;DR: Advances in integrated fermentation and in situ product removal processes have resulted in a dramatic reduction of process streams, reduced butanol toxicity to the fermenting microorganisms, improved substrate utilization, and overall improved bioreactor performance.
Journal ArticleDOI
New insights and novel developments in clostridial acetone/butanol/isopropanol fermentation
TL;DR: A reintroduction of acetone/butanol fermentation on an industrial scale seems to be economically feasible, a view that is supported by a new pilot plant in Austria recently coming into operation.