Effects of temperature and medium composition on the ethanol tolerance of Bacillus stearothermophilus LLD-15

S. A. Amartey, D. J. Leak, B. S. Hartley

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The effects of temperature (60°-70°C) and medium composition (complex and defined) on ethanol tolerance of Bacillus stearothermophillus LLD-15, an L-lactate dehydrogenase mutant have been determined in shake flasks under aerobic conditions. In all cases, there was complete inhibition of growth in the presence of 6%v/v ethanol. B. stearothermophillus LLD-15 was found to be less tolerant to ethanol at 70°C than at 60°C and also less tolerant to ethanol in a defined medium than in a complex medium.

Original languageEnglish
Pages (from-to)627-632
Number of pages6
JournalBiotechnology Letters
Issue number9
Publication statusPublished - 1 Sep 1991

ASJC Scopus subject areas

  • Biotechnology
  • Bioengineering
  • Applied Microbiology and Biotechnology

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