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Breeding of freeze-tolerant yeast and the mechanisms of stress-tolerance.

[In Japanese. / En japonais.]

Author(s) : HINO A.

Type of article: Article

Summary

New freeze-tolerant yeasts for frozen dough preparations were isolated from banana peel and identified. The authors attempted to breed a new freeze-tolerant strain. The hybrid between S.cerevisiae, which is an isolated freeze-tolerant strain, and a strain isolated from bakers' yeast with sexual conjugation gave a good quality bread made from frozen dough methods. The complicated metabolic pathway and the regulation system of trehalose in yeast cells are discussed. The trehalose synthesis may act as a metabolic buffer system which helps maintain the intracellular inorganic phosphates and serves as a feedback regulation system in the glycolysis. However, not enough is known on how the trehalose protects yeast cells from stress.

Details

  • Original title: [In Japanese. / En japonais.]
  • Record ID : 1996-0379
  • Languages: Japanese
  • Source: Trans. JAR - vol. 11 - n. 3
  • Publication date: 1994
  • Document available for consultation in the library of the IIR headquarters only.

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