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Flow microcalorimetry of a respiration-deficient mutant of Saccharomyces cerevisiae

✍ Scribed by M. C. Loureiro-Dias; J. D. Arrabaca

Publisher: John Wiley and Sons
Year: 2007
Tongue: English
Weight: 278 KB
Volume: 22
Category: Article
ISSN: 0233-111X
DOI: 10.1002/jobm.19820220206

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✦ Synopsis

Abstract

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.

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