Saccharomyces cerevisiae KNU5377 with multiple stress tolerance and its potential as a worldwide on-site industrial strain for alcohol fermentation

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Title
Saccharomyces cerevisiae KNU5377 with multiple stress tolerance and its potential as a worldwide on-site industrial strain for alcohol fermentation
Author(s)
S K Paik; I N Jin; H S Yun; S H Park; S C Shin; J W Kim; Kee Sun ShinJung Sook Lee; Yong Ha Park
Bibliographic Citation
Korean Journal of (Applied) Microbiology & Biotechnology, vol. 30, no. 4, pp. 425-429
Publication Year
2002
Abstract
Saccharomyces cerevisiae KNU5377 was examined to assay the recovering capacity against heat and other stressors. Along with a particular fermentation ability that is able to produce ethanol even at high temperature such as 40°C with a comparable rate to the fermentation at 33°C, this strain also exhibited higher viability than a reference strain owing to its own thermotolerance that conferred the survival after the severe heat shock at 60°C for 30 minutes. Furthermore, this strain showed outstanding tolerances against H2O2, ethanol and some chemical compounds. But, especially due to the thermotolerance, this strain has been suspected of other species of yeast. However, ITS (intemally transcribed spacer) 1 and 2 sequencing data confirmed this strain was a typical strain of S. cerevisiae. The outstanding tolerances to various environmental stressors indicate this S. cerevisiae KNU5377 is enough to use both as an on-site potential strain for world-wide alcohol fermentation industry and as a model strain for researches into the routes to acquire the tolerance to various stressors.
Keyword
ITS sequencesaccharomyces cerevisiaestress tolerance
ISSN
0257-2389
Publisher
Korea Soc-Assoc-Inst
Type
Article
Appears in Collections:
Division of Biomedical Research > Microbiome Convergence Research Center > 1. Journal Articles
Jeonbuk Branch Institute > Biological Resource Center > 1. Journal Articles
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