Nutritional effects on the kinetics of ethanol production from glucose by Zymomonas mobilis

Cromie S. and Doelle H.W. (1981) Nutritional effects on the kinetics of ethanol production from glucose by Zymomonas mobilis. European Journal of Applied Microbiology and Biotechnology, 11 2: 116-119. doi:10.1007/BF00518053


Author Cromie S.
Doelle H.W.
Title Nutritional effects on the kinetics of ethanol production from glucose by Zymomonas mobilis
Journal name European Journal of Applied Microbiology and Biotechnology
ISSN 0171-1741
Publication date 1981-01-01
Sub-type Article (original research)
DOI 10.1007/BF00518053
Open Access Status
Volume 11
Issue 2
Start page 116
End page 119
Total pages 4
Publisher Springer-Verlag
Subject 2404 Microbiology
1305 Biotechnology
2700 Medicine
Abstract Changes in the nutritional media significantly affected specific glucose uptake rate (Qg), glucose utilization and ethanol production rate (Qp) of Zymomonas mobilis Z 10. Varying the yeast extract concentrations (pantothenate) between 0.15% and 1.0% in a 10% glucose system at μ=0.2 h-1, Qg values between 14.9 and 35.3 and Qp values between 7.4 and 14.6 were obtained. A concentration of 0.25% yeast extract gave highest results. High NH 4 + concentrations were detrimental to ethanol production, whereas phosphate, potassium and magnesium stimulated the catabolic activity. In the case of magnesium, glucose utilization increased from 2.8 to 92.2%. Batch and continuous cultures showed that by increasing catabolic activity, ethanol productivity can be increased irrespective of glucose concentration.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import - Archived
 
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