Sake yeast strains have difficulty in entering a quiescent state after cell growth cessation(BREWING AND FOOD TECHNOLOGY)
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概要
- 論文の詳細を見る
Sake yeast strains produce a high concentration of ethanol during sake brewing compared to laboratory yeast strains. As ethanol fermentation by yeast cells continues even after cell growth stops, analysis of the physiological state of the stationary phase cells is very important for understanding the mechanism of producing higher concentrations of ethanol. We compared the physiological characteristics of stationary phase cells of both sake and laboratory yeast strains in an aerobic batch culture and under sake brewing conditions. We unexpectedly found that sake yeast cells in the stationary phase had a lower buoyant density and stress tolerance than did the laboratory yeast cells under both experimental conditions. These results suggest that it is difficult for sake yeast cells to enter a quiescent state after cell growth has stopped, which may be one reason for the higher fermentation rate of sake yeast compared to laboratory yeast strains.
著者
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Akao Takeshi
National Research Institute of Brewing
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Wu Hong
National Research Institute Of Brewing
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SHIMOI Hitoshi
National Research Institute of Brewing
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Takagi Hiroshi
Graduate School of Biological Sciences, Nara Institute of Science and Technology
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Shimoi H
Hiroshima Univ. Higashihiroshima Jpn
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Shimoi H
Hiroshima Univ. Higashi‐hiroshima Jpn
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Shimoi Hitoshi
Department Of Molecular Biotechnology Graduate School Of Advanced Sciences Of Matter Hiroshima Unive
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Takagi Hiroshi
Graduate School Of Biological Sciences Nara Inst. Of Sci. And Technol.
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Watanabe Daisuke
National Research Institute of Brewing
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Takagi Hiroshi
Graduate School Of Biological Sciences Nara Institute Of Science And Technology
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Urbanczyk Henryk
National Research Institute of Brewing
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Noguchi Chiemi
National Research Institute of Brewing
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Urbanczyk Henryk
National Research Institute Of Brewing:(present Office)university Of Miyazaki Interdisciplinary Rese
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