Premium
Energetics of Saccharomyces cerevisiae CBS 426: Comparison of anaerobic and aerobic glucose limitation
Author(s) -
Dekkers J. G. J.,
de Kok Hermine E.,
Roels J. A.
Publication year - 1981
Publication title -
biotechnology and bioengineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.136
H-Index - 189
eISSN - 1097-0290
pISSN - 0006-3592
DOI - 10.1002/bit.260230510
Subject(s) - respiratory quotient , chemostat , anaerobic exercise , carbon dioxide , glycerol , fermentation , biomass (ecology) , chemistry , food science , oxygen , oxygen balance , ethanol , biochemistry , biology , ecology , bacteria , organic chemistry , physiology , genetics
Saccharomyces cerevisiae CBS 426 was grown aerobically and anaerobically in a glucose‐limited chemostat. The flows of biomass, glucose, ethanol, carbon dioxide, oxygen, glycerol, and the elemental composition of the biomass were measured. Models for anaerobic and aerobic growth are constructed. Values for Y ATP and P/O are obtained from continuous culture data for aerobic growth; this Y ATP value is compared with that obtained from the anaerobic growth results. The ratio between the heat produced and the oxygen consumed increases if more glucose in fermented to ethanol and carbon dioxide. An equation for ϕ H /ϕ O as a function of the respiratory quotient is given.