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Increasing ethanol productivity during xylose fermentation by cell recycling of recombinant Saccharomyces cerevisiae.
Appl Microbiol Biotechnol. 2003 Jan; 60(5):560-3.AM

Abstract

The influence of cell recycling of xylose-fermenting Saccharomyces cerevisiae TMB3001 was investigated during continuous cultivation on a xylose-glucose mixture. By using cell recycling at the dilution rate (D) of 0.05 h(-1), the cell-mass concentration could be increased from 2.2 g l(-1) to 22 g l(-1). Consequently, the volumetric ethanol productivity increased ten-fold, from 0.5 g l(-1) h(-1) to 5.35 g l(-1) h(-1). By increasing the biomass concentration, the xylose consumption rate increased from 0.75 g xylose l(-1) h(-1) without recycling to 1.9 g l(-1) h(-1) with recycling. The specific ethanol productivity was in the range of 0.23-0.26 g g(-1) h(-1) with or without cell recycling, showing that an increased cell-mass concentration did not influence the efficiency of the yeast.

Authors+Show Affiliations

Roca C
Center for Process Biotechnology, BioCentrum-DTU, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark.
Olsson L
No affiliation info available

MeSH

AnaerobiosisBiomassBioreactorsEthanolFermentationGlucoseModels, StructuralRecombination, GeneticSaccharomyces cerevisiaeTime FactorsXylose

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

12536256

Citation

Roca, C, and L Olsson. "Increasing Ethanol Productivity During Xylose Fermentation By Cell Recycling of Recombinant Saccharomyces Cerevisiae." Applied Microbiology and Biotechnology, vol. 60, no. 5, 2003, pp. 560-3.
Roca C, Olsson L. Increasing ethanol productivity during xylose fermentation by cell recycling of recombinant Saccharomyces cerevisiae. Appl Microbiol Biotechnol. 2003;60(5):560-3.
Roca, C., & Olsson, L. (2003). Increasing ethanol productivity during xylose fermentation by cell recycling of recombinant Saccharomyces cerevisiae. Applied Microbiology and Biotechnology, 60(5), 560-3.
Roca C, Olsson L. Increasing Ethanol Productivity During Xylose Fermentation By Cell Recycling of Recombinant Saccharomyces Cerevisiae. Appl Microbiol Biotechnol. 2003;60(5):560-3. PubMed PMID: 12536256.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Increasing ethanol productivity during xylose fermentation by cell recycling of recombinant Saccharomyces cerevisiae. AU - Roca,C, AU - Olsson,L, Y1 - 2002/11/20/ PY - 2002/07/04/received PY - 2002/09/13/accepted PY - 2003/1/22/pubmed PY - 2003/5/9/medline PY - 2003/1/22/entrez SP - 560 EP - 3 JF - Applied microbiology and biotechnology JO - Appl Microbiol Biotechnol VL - 60 IS - 5 N2 - The influence of cell recycling of xylose-fermenting Saccharomyces cerevisiae TMB3001 was investigated during continuous cultivation on a xylose-glucose mixture. By using cell recycling at the dilution rate (D) of 0.05 h(-1), the cell-mass concentration could be increased from 2.2 g l(-1) to 22 g l(-1). Consequently, the volumetric ethanol productivity increased ten-fold, from 0.5 g l(-1) h(-1) to 5.35 g l(-1) h(-1). By increasing the biomass concentration, the xylose consumption rate increased from 0.75 g xylose l(-1) h(-1) without recycling to 1.9 g l(-1) h(-1) with recycling. The specific ethanol productivity was in the range of 0.23-0.26 g g(-1) h(-1) with or without cell recycling, showing that an increased cell-mass concentration did not influence the efficiency of the yeast. SN - 0175-7598 UR - https://www.unboundmedicine.com/medline/citation/12536256/Increasing_ethanol_productivity_during_xylose_fermentation_by_cell_recycling_of_recombinant_Saccharomyces_cerevisiae_ DB - PRIME DP - Unbound Medicine ER -