J. Gen. Appl. Microbiol., 48, 261–267 (2002)
نویسندگان
چکیده
The selection of wine yeasts for enological use was traditionally carried out on the basis of their technological and quality-linked phenotypical characteristics (Giudici and Zambonelli, 1992). For this purpose different methodologies were designed. Recently a two-step procedure was proposed: a pre-selection based on resistance to SO2, killer activity, growth at high temperature and low foam production, followed by a selection based on volatile acidity, ethanol production, and residual sugars (Regodon et al., 1997). Another methodology based on phenotypical characteristics has four consecutive stages: (1) fermenting capacity of the strains under secondary fermentation conditions; (2) formation of volatile acidity, resistance to SO2, forIsolation and clonal pre-selection of enological Saccharomyces
منابع مشابه
J. Gen. Appl. Microbiol., 48, 35–41 (2002)
A river-ecosystem is strongly affected by human activities. The pollutants discharged into a river from human activities may destroy the ecosystem of the river. Microorganisms in rivers (including suspended and sessile microorganisms) play key roles in degrading the pollutant and therefore in preventing the river ecosystem from being destroyed. To establish suitable measures for the protection ...
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