Matches in DBpedia 2014 for { <http://dbpedia.org/resource/Zymomonas> ?p ?o. }
Showing items 1 to 32 of
32
with 100 items per page.
- Zymomonas abstract "Zymomonas is a genus of bacteria. Members of this genus are gram negative, facultative anaerobic, non-sporulating, polarly-flagellated, rod-shaped bacteria.The best-known species from this genus is Zymomonas mobilis. It is a fermenting bacteria that contributes to cider sickness and beer spoilage. It has a near theoretical ethanol yield from glucose, no oxygen requirement thus negating the need for expensive oxygen transfer, and high ethanol tolerance making it an effective microbe for ethanol biofuel production. However, in spite of these attractive advantages, several factors prevent the commercial usage of Z. mobilis in cellulosic ethanol production. The foremost hurdle is that its substrate range is limited to glucose, fructose and sucrose. Wild-type Z. mobilis cannot ferment C5 sugars like xylose and arabinose, which are important components of lignocellulosic hydrolysates. Unlike E. coli and yeast, Z. mobilis cannot tolerate toxic inhibitors present in lignocellulosic hydrolysates such as acetic acid and various phenolic compounds. Concentration of acetic acid in lignocellulosic hydrolysates can be as high as 1.5% (w/v), which is well above the tolerance threshold of Z. mobilis.Several attempts have been made to engineer Z. mobilis to overcome its inherent deficiencies. National Renewable Energy Laboratory (NREL), USA has made significant contributions in expanding its substrate range to include C5 sugars like xylose and arabinose., Acetic acid-resistant strains of Z. mobilis have been developed by rational metabolic engineering efforts, mutagenesis techniques or adaptive mutation., However, when these engineered strains metabolize mixed sugars in presence of inhibitors, the yield and productivity are much lower, thus preventing their industrial application.An extensive adaptation process was used to improve xylose fermentation in Z. mobilis. By adapting a strain in a high concentration of xylose, significant alterations of metabolism occurred. One noticeable change was reduced levels of xylitol, a byproduct of xylose fermentation which can inhibit the strain's xylose metabolism. One of the reasons for lower xylitol production was mutation in a putative gene encoding for an aldo-keto reductase that catalyzes the reduction of xylose to xylitol.,".
- Zymomonas class Alphaproteobacteria.
- Zymomonas colourName "lightgrey".
- Zymomonas family Sphingomonadaceae.
- Zymomonas kingdom Bacteria.
- Zymomonas order Sphingomonadaceae.
- Zymomonas phylum Proteobacteria.
- Zymomonas wikiPageExternalLink articles14.htm.
- Zymomonas wikiPageID "4886828".
- Zymomonas wikiPageRevisionID "596628613".
- Zymomonas classis Alphaproteobacteria.
- Zymomonas color "lightgrey".
- Zymomonas familia Sphingomonadaceae.
- Zymomonas genus "Zymomonas".
- Zymomonas hasPhotoCollection Zymomonas.
- Zymomonas name "Zymomonas".
- Zymomonas ordo Sphingomonadaceae.
- Zymomonas phylum Proteobacteria.
- Zymomonas regnum Bacteria.
- Zymomonas subject Category:Proteobacteria.
- Zymomonas type Species.
- Zymomonas type Organism.
- Zymomonas comment "Zymomonas is a genus of bacteria. Members of this genus are gram negative, facultative anaerobic, non-sporulating, polarly-flagellated, rod-shaped bacteria.The best-known species from this genus is Zymomonas mobilis. It is a fermenting bacteria that contributes to cider sickness and beer spoilage.".
- Zymomonas label "Zymomonas".
- Zymomonas label "Zymomonas".
- Zymomonas sameAs Zymomonas.
- Zymomonas sameAs m.0csn31.
- Zymomonas sameAs Q3008835.
- Zymomonas sameAs Q3008835.
- Zymomonas wasDerivedFrom Zymomonas?oldid=596628613.
- Zymomonas isPrimaryTopicOf Zymomonas.
- Zymomonas name "Zymomonas".