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Ethanol and acetic acid tolerance in free and immobilized cells of Saccharomyces cerevisiae and Acetobacter aceti

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Abstract

Saccharomyces cerevisiae and Acetobacter aceti cells were immobilized by entrapment in Ca-alginate or by adsorption on to preformed cellulose beads and were treated with 0-20% (v/v) ethanol and 0-10% (v/v) acetic acid. At 20% (v/v) ethanol, lethal for free yeast cells, 62-72% of the immobilized cells survived. In 10% (v/v) acetic acid, free and adsorbed Acetobacter aceti cells ceased to grow but 69% of entrapped cells survived. Cells released from the carrier showed an intermediate survival (20-60%).

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Authors and Affiliations

  1. Department of Biochemistry, József Attila University, POB 533, Szeged, H - 6701, Hungary

    Judit Krisch

  2. COVENT Industrial Venture Capital Investment Co. Ltd, POB 335, Budapest, H - 1536, Hungary

    Béla Szajani

Authors
  1. Judit Krisch
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  2. Béla Szajani
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Krisch, J., Szajani, B. Ethanol and acetic acid tolerance in free and immobilized cells of Saccharomyces cerevisiae and Acetobacter aceti. Biotechnology Letters 19, 525–528 (1997). https://doi.org/10.1023/A:1018329118396

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  • DOI: https://doi.org/10.1023/A:1018329118396

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