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Flow microcalorimetry of a respiration‐deficient mutant of Saccharomyces cerevisiae
Author(s) -
LoureiroDias M. C.,
Arrabaca J. D.
Publication year - 1982
Publication title -
zeitschrift für allgemeine mikrobiologie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.58
H-Index - 54
eISSN - 1521-4028
pISSN - 0044-2208
DOI - 10.1002/jobm.19820220206
Subject(s) - isothermal microcalorimetry , respiration , saccharomyces cerevisiae , anaerobic exercise , fermentation , mutant , biochemistry , chemistry , enthalpy , cyanide , biology , food science , thermodynamics , yeast , inorganic chemistry , physiology , gene , anatomy , physics
In aerobic batch cultures in mineral medium with glucose of a respiration‐deficient mutant of Saccharomyces cerevisiae , growth parameters were estimated and the heat evolved was measured by a flow microcalorimeter. A growth enthalpy of – 163.6 joule per mole of glucose consumed was measured. Under anaerobic conditions, the value was – 134.6 joule, closer to the expected for alcoholic fermentation alone. The difference was found to be due to cyanide‐resistant respiration under aerobic conditions.