Physiological and molecular characterisation of Saccharomyces cerevisiae cacha double dagger a strains isolated from different geographic regions in Brazil
fanzhiqiang 添加于 2010-3-26 09:52
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作 者
Badotti F, Belloch C, Rosa CA, Barrio E, Querol A 摘 要
In this work, 74 Saccharomyces cerevisiae strains isolated from cacha double dagger a fermentation of six different geographic regions in Brazil were characterized by mitochondrial DNA restriction fragment length polymorphism (mtDNA-RFLP) and by their ability to grow on stress conditions occurring during the cacha double dagger a fermentation process. Cacha double dagger a S. cerevisiae strains showed high mtDNA-RFLP polymorphism with the occurrence of 32 different molecular patterns. The S. cerevisiae strains presenting prevalent mtDNA were able to grow better in the stress conditions than strains represented by infrequent patterns. The principal coordinate analysis on 17 stress conditions revealed that the major source of growth variation were high ethanol concentrations and low temperatures. These results indicate that the stress conditions occurring in the fermentation process influence the prevalence of the most adapted S. cerevisiae strains in each distillery. The physiological tests used in our study can be used as a criterion for rapidly selecting autochthonous yeast strains for further purposes such as the selection of fermentative starters of S. cerevisiae strains.-
详细资料
- 关键词: Cachaca; Saccharomyces cerevisiae; mtDNA; Stress conditions
- 文献种类: Journal article
- 期刊名称: WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY
- 期卷页: 2010年 第26卷 第4期 579-587页
- 出版社: SPRINGER, 233 SPRING ST, NEW YORK, NY 10013 USA
- 地址: 1. CSIC, Inst Agroquim & Tecnol Alimentos, Valencia 46100, Spain
2. Univ Fed Minas Gerais, Dept Microbiol, ICB, BR-31270901 Belo Horizonte, MG Brazil
3. Univ Valencia, Inst Cavanilles Biodiversitat & Biol Evolut, Paterna 46980, Spain
- ISBN: 0959-3993
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学科领域 自然科学 » 力学
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