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Improved ethanol tolerance and production in strains of Clostridium thermocellum

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Abstract

Two Clostridium thermocellum strains were improved for ethanol tolerance, to 5% (v/v), by gradual adaptation and mutation. The best mutant gave an ethanol yield of 0.37 g/g substrate, with a growth yield 1.5 times more than its parent. Accumulation of acids and reducing sugars by the mutant strain with 5% (v/v) ethanol was lower than that of the parent strain with 1.5% (v/v) ethanol.

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Authors and Affiliations

  1. Department of Microbiology, Osmania University, Hyderabad-500 007, India

    K. Sudha Rani, M. V. Swamy, D. Sunitha, D. Haritha & G. Seenayya

Authors
  1. K. Sudha Rani
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  2. M. V. Swamy
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  3. D. Sunitha
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  4. D. Haritha
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  5. G. Seenayya
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Rani, K.S., Swamy, M.V., Sunitha, D. et al. Improved ethanol tolerance and production in strains of Clostridium thermocellum . World J Microbiol Biotechnol 12, 57–60 (1996). https://doi.org/10.1007/BF00327802

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  • DOI: https://doi.org/10.1007/BF00327802

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