Applied Biochemistry and Biotechnology

, Volume 27, Issue 1, pp 65–74 | Cite as

Electrofusion of an industrial Baker’s yeast strain with a sour dough yeast

  • T. H. Aarisio
  • M. L. Suihko


A method for hybridization of yeast protoplasts ofSaccharomyces cerevisiae andCandida holmii by electrofusion was optimized. The hybrids were screened on maltose-acetate agar plates. The average fusion frequency was 1.1xl0-3. Two hybrids of 132 collected from selection plates were found to be stable over 15 sequential shake flask cultivations. However, the strains reverted during production of baker’s yeast in a laboratory scale process imitating the industrial process.

Index Entries

Electrofusion baker’s yeast sour dough yeast acetic acid tolerance Saccharomyces cerevisiae Candida holmii 


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Copyright information

© Humana Press Inc. 1991

Authors and Affiliations

  • T. H. Aarisio
    • 1
  • M. L. Suihko
    • 1
  1. 1.VTTBiotechnical LaboratoryFinland

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