We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Kinetic analysis of ethanol production by an acetate-resistant strain of recombinant Zymomonas mobilis.
- Authors
Jeon, Young Jae; Svenson, Charles J.; Joachimsthal, Eva L.; Rogers, Peter L.
- Abstract
Zymomonas mobilis ZM4/AcR (pZB5), a mutant recombinant strain with increased acetate resistance, has been isolated following electroporation of Z. mobilis ZM4/AcR. This mutant strain showed enhanced kinetic characteristics in the presence of 12 g sodium acetate l-1 at pH 5 in batch culture on 40 g glucose, 40 g xylose l-1 medium when compared to ZM4 (pZB5). In continuous culture, there was evidence of increased maintenance energy requirements/uncoupling of metabolism for ZM4/AcR (pZB5) in the presence of sodium acetate; a result confirmed by analysis of the effect of acetate on other strains of Z. mobilis. Nomenclature m Cell maintenance energy coefficient (g g-1 h-1) Maximum overall specific growth rate (1 h-1) Maximum specific ethanol production rate (g g-1 h-1) Maximum specific total sugar utilization rate (g g-1 h-1) Biomass yield per mole of ATP (g mole-1 Ethanol yield on total sugars (g g-1) Biomass yield on total sugars (g g-1) True biomass yield on total sugars (g g-1)
- Subjects
ALCOHOL; DRUGS; BIOMASS; GRAM-negative bacteria; ANAEROBIC bacteria; HYDROGEN-ion concentration
- Publication
Biotechnology Letters, 2002, Vol 24, Issue 10, p819
- ISSN
0141-5492
- Publication type
Article
- DOI
10.1023/A:1015546521000