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EnglishHybridization by spore conjugation was used to develop new and improved wine yeasts of Saccharomyces cerevisiae. The procedure was achieved with diploid, homothallic strains with high sporulation frequency and high spore viability. The method was verified by crossing flocculent and non-H(2)S-forming strains. Single-spore descendants of the hybrids were studied by tetrad analysis with regard to the aforementioned characters and the other two winemaking traits, i.e., ethanol production and fermentation rate. A highly flocculent, non-H(2)S-forming wine yeast strain with a high fermentation rate and high ethanol production was obtained.
| Titolo: | Improvement of a wine Saccharomyces cerevisiae strain by breeding program |
| Autori: | |
| Data di pubblicazione: | 1985 |
| Rivista: | |
| Abstract: | Hybridization by spore conjugation was used to develop new and improved wine yeasts of Saccharomyces cerevisiae. The procedure was achieved with diploid, homothallic strains with high sporulation frequency and high spore viability. The method was verified by crossing flocculent and non-H(2)S-forming strains. Single-spore descendants of the hybrids were studied by tetrad analysis with regard to the aforementioned characters and the other two winemaking traits, i.e., ethanol production and fermentation rate. A highly flocculent, non-H(2)S-forming wine yeast strain with a high fermentation rate and high ethanol production was obtained. |
| Handle: | http://hdl.handle.net/11575/13551 |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
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