Limitations in substrate utilization efficiency by Zymomonas mobilis

Cromie S. and Doelle H.W. (1982) Limitations in substrate utilization efficiency by Zymomonas mobilis. European Journal of Applied Microbiology and Biotechnology, 14 2: 69-73. doi:10.1007/BF00498005


Author Cromie S.
Doelle H.W.
Title Limitations in substrate utilization efficiency by Zymomonas mobilis
Journal name European Journal of Applied Microbiology and Biotechnology
ISSN 0171-1741
Publication date 1982-01-01
Sub-type Article (original research)
DOI 10.1007/BF00498005
Open Access Status Not yet assessed
Volume 14
Issue 2
Start page 69
End page 73
Total pages 5
Publisher Springer-Verlag
Subject 2404 Microbiology
1305 Biotechnology
2700 Medicine
Abstract Optimal growth conditions for Zymomonas mobilis have been established using continuous cultivation methods. Optimal substrate utilization efficiency occurs with 2.5 g l-1 yeast extract, 2.0 g l-1 ammonium sulfate and 6.0 g l-1 magnesium sulfate in the media. Catabolic activity is at its maximum with glucose uptake rates of 16-18 g l-1 h-1 and ethanol production rates of 8-9 g l-1 h-1, Qg values of 22-26 and Qp values between 11 and 13, which results in 40 g l-1 h-1 ethanol yields using a 100 g l-1 substrate feed. Any increase in these parameters goes on cost of substrate utilization efficiency. Calcium pantothenate can not substitute yeast extract.
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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Created: Tue, 16 Aug 2016, 13:01:38 EST by System User