Article ID Journal Published Year Pages File Type
36534 Process Biochemistry 2005 6 Pages PDF
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 104-fold CFU/ml; but, the esterase production was enhanced more than two times under the same conditions.

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Physical Sciences and Engineering Chemical Engineering Bioengineering
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