Decrease in High Pressure Tolerance of Resting Cells of Escherichia coli K-12 by Pretreatment with Alternating Current(Microbiology & Fermentation Industry)
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概要
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The effects of 50 Hz alternating current (a.c.) pretreatment on the high pressure tolerance of Escherichia coli K-12 cells were found to be dependent on the composition of the solutions suspending the cells during treatment with pressure up to 4000kg/cm^2 at room temperature for 10 min. When pressurized in a 8/15M NaCl solution (pH 7.0) at 3000kg/cm^2 after a.c. exposure of 600mA/cm^2 for 2 hr at 35℃, the exposed cells could not survive as well as those pressurized in a 8/15M phosphate buffer (pH 7.0): the value of the ratio of the exposed cells surviving to that of the unexposed ones was less than 0.1 in an NaCl solution and about 0.5 in a buffer. The lethal action of high pressure on the cells suspended in M/15 buffer was appreciably counteracted by 8/15M buffer but not by 8/15M NaCl solution.
- 社団法人日本農芸化学会の論文
- 1991-05-23
著者
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Shimada Keiko
Department Of Industrial Chemistry Faculty Of Engineering Seikei University
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Shimada Keiko
Department Of Clinical And Biomedical Sciences Showa Pharmaceutical University
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SHIMAHARA KENZO
Department of Industrial Chemistry, Faculty of Engineering, Seikei University
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Shimahara Kenzo
Department Of Industrial Chemistry Faculty Of Engineering Seikei University
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