Flow microcalorimetry of a respiration-deficient mutant of Saccharomyces cerevisiae.
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.
D002151:Calorimetry; D000431:Ethanol / Q000378:metabolism; D005285:Fermentation; D005947:Glucose / Q000378:metabolism*; D005990:Glycerol / Q000378:metabolism; D006358:Hot Temperature; D009154:Mutation; D010101:Oxygen Consumption; D012441:Saccharomyces cerevisiae / Q000254:growth & development / Q000378:metabolism*
D000431:Ethanol; D005947:Glucose; D005990:Glycerol