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Effect of hydroxylic solvents on cell growth, sporulation, and esterase production ofBacillus licheniformisS-86

Authors
Journal
Process Biochemistry
1359-5113
Publisher
Elsevier
Publication Date
Volume
40
Issue
7
Identifiers
DOI: 10.1016/j.procbio.2004.09.007
Keywords
  • Esterase
  • Bacillus
  • Organic Solvents
  • Alcohols
  • Log P
  • Sporulation

Abstract

Abstract Thermoresistant and alcohol-tolerant bacterium Bacillus licheniformis S-86 can produce a stable esterase in high organic solvents concentrations. In this work, the effects of seven alkanols on cell growth, sporulation, and esterase production of Bacillus licheniformis S-86 were investigated. A reciprocal relationship between maximal organic solvent concentrations tested with log P was observed but there was no correlation between the alcohol log P and the esterase production. Esterase specific activity was approximately two-fold higher in cultures supplemented with C3–C5 alkanols than the control. The addition of 3-methylbutan-1-ol to the culture medium, strongly depleted sporulation compared to the control by 10 4-fold CFU/ml; but, the esterase production was enhanced more than two times under the same conditions.

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