Source:http://linkedlifedata.com/resource/pubmed/id/18576004
| Subject | Predicate | Object | Context |
|---|---|---|---|
| pubmed-article:18576004 | rdf:type | pubmed:Citation | lld:pubmed |
| pubmed-article:18576004 | lifeskim:mentions | umls-concept:C0010453 | lld:lifeskim |
| pubmed-article:18576004 | lifeskim:mentions | umls-concept:C0162736 | lld:lifeskim |
| pubmed-article:18576004 | lifeskim:mentions | umls-concept:C0549178 | lld:lifeskim |
| pubmed-article:18576004 | lifeskim:mentions | umls-concept:C2603343 | lld:lifeskim |
| pubmed-article:18576004 | pubmed:dateCreated | 2008-6-25 | lld:pubmed |
| pubmed-article:18576004 | pubmed:abstractText | The continuous cofermentation performance of xylose-fermenting Zymomonas mobilis at 30 degrees C and pH 5.5 was characterized using a pure-sugar feed solution that contained 8 g/L glucose and 40 g/L xylose. Successful chemostat start up resulted in complete utilization of glucose and greater than 85% utilization of xylose, but was only reproducibly achieved using initial dilution rates at or less than 0.04/h; once initiated, cofermentation could be maintained at dilution rates of 0.04 to 0.10/h. Whereas xylose and cell-mass concentrations increased gradually with increasing dilution rate, ethanol concentrations and ethanol yields on available sugars remained approximately constant at 20-22 g/L and 80-90% of theoretical, respectively. Volumetric and specific ethanol productivities increased linearly with increasing dilution rate, rising from approx 1.0 each (g/L/h or g/g/h) at a dilution rate of 0.04/h to approx 2.0 each (g/L/h or g/g/h) at a dilution rate of 0.10/h. Similarly, specific sugar-utilization rates increased from approx 2.0 g/g/h at dilution rate 0.04/h to approx 3.5 g/g/h at dilution rate of 0.10/h. The estimated values of 0.042 g/g for the maximum Z. mobilis cell-mass yield on substrate and 1.13 g/g/h for the minimum specific substrate utilization rate required for cellular maintenance energy are within the range of values reported in the literature. Results are also presented which suggest that long-term adaptation in continuous culture is a powerful technique for developing strains with higher tolerance to inhibitory hemicellulose hydrolyzates. | lld:pubmed |
| pubmed-article:18576004 | pubmed:language | eng | lld:pubmed |
| pubmed-article:18576004 | pubmed:journal | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:18576004 | pubmed:status | PubMed-not-MEDLINE | lld:pubmed |
| pubmed-article:18576004 | pubmed:issn | 0273-2289 | lld:pubmed |
| pubmed-article:18576004 | pubmed:author | pubmed-author:LawfordH GHG | lld:pubmed |
| pubmed-article:18576004 | pubmed:author | pubmed-author:HauckKK | lld:pubmed |
| pubmed-article:18576004 | pubmed:author | pubmed-author:McMillanJ DJD | lld:pubmed |
| pubmed-article:18576004 | pubmed:author | pubmed-author:MohagheghiAA | lld:pubmed |
| pubmed-article:18576004 | pubmed:issnType | lld:pubmed | |
| pubmed-article:18576004 | pubmed:volume | 70-72 | lld:pubmed |
| pubmed-article:18576004 | pubmed:owner | NLM | lld:pubmed |
| pubmed-article:18576004 | pubmed:authorsComplete | Y | lld:pubmed |
| pubmed-article:18576004 | pubmed:pagination | 353-67 | lld:pubmed |
| pubmed-article:18576004 | pubmed:year | 1998 | lld:pubmed |
| pubmed-article:18576004 | pubmed:articleTitle | Continuous culture studies of xylose-fermenting Zymomonas mobilis. | lld:pubmed |
| pubmed-article:18576004 | pubmed:affiliation | Bioengineering Laboratory, Department of Biochemistry, University of Toronto, Toronto, Ontario, Canada M5S 1A8. | lld:pubmed |
| pubmed-article:18576004 | pubmed:publicationType | Journal Article | lld:pubmed |