INJURY OF Escherichia coli IN PHYSIOLOGICAL PHOSPHATE-BUFFERED SALINE INDUCED BY FAR-INFRARED IRRADIATION

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概要

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• Injury in Escherichia coli irradiated by far-infrared radiation (FIR) was examined. We used penicillin G (PCG), chloramphenicol (CP), rifampicin (RFP) and nalidixic acid (NA) as selective reagents, and tried to evaluate the injury in bacteria irradiated by FIR on the basis of the changes in the sensitivity to selective reagents. The validity of this method was examined using UV pasteurization. E. coli irradiated by UV became more sensitive to CP and NA, which indicated that UV irradiation damaged nueleic acid in E. coli. This result agrees with those demonstrated by many researchers and suggests this method is applicable to useful evaluation of the damaged part in bacteria induced by stresses. E. coli irradiated by FIR became more sensitive to RFP and CP, which suggests that FIR irradiation damages RNA polymerase and ribosome in E. coli. Though similar changes in the sensitivity were obtained in the case of thermal conductive heating, the pasteurization effect of FIR irradiation was much greater than that of conductive heating.

• 社団法人 化学工学会の論文

著者

• SHIMIZU Masaru

  Department of Electrical Engineering and Computer Sciences, Graduate School of Engineering, Universi

• KOKUGAN Takao

  Department of Chemical Engineering, Tokyo University of Agriculture and Technology

• SAWAI Jun

  Department of Applied Chemistry, Kanagawa Institute of Technology

• Shimizu M

  Advanced Industrial Science And Technology (aist) Power Electronics Research Center

• Shimizu Mitsuaki

  Power Electronics Research Center National Institute Of Advanced Industrial Science And Technology

• IGARASHI HIDEO

  Department of Microbiology, Tokyo Metropolitan Research Laboratory of Public Health

• HASHIMOTO Atsushi

  Department of Chemical Engineering, Division of Applied Chemistry, Tokyo University of Agriculture &

• Hashimoto Atsushi

  Department Of Chemical Engineering Division Of Applied Chemistry Tokyo University Of Agriculture &am

• Sawai J

  Kanagawa Inst. Technol. Atsugi‐shi

• Sawai Jun

  Department Of Applied Bioscience Faculty Of Engineering Kanagawa Institute Of Technology

• Shimizu M

  Tokyo Univ. Agriculture & Technol. Koganei

• Kokugan T

  Tokyo Univ. Agriculture And Technol. Koganei Jpn

• Kokugan Takao

  Department Of Chemical Engineering Faculty Of Technology Tokyo University Of Agriculture And Technol

• Kokugan Takao

  Department Of Chemical Engineering Faculty Of Engineering Tokyo University Of Agriculture And Techno

• Kokugan Takao

  Tokyo University Of Agriculture And Technology Department Of Chemical Engineering

• Igarashi H

  Tokyo Metropolitan Res. Lab. Public Health Tokyo

• Igarashi Hideo

  Department Of Agricultural Chemistry Yamagata University

• SAGARA Koji

  Department of Chemical Engineering, Division of Chemical & Biological Science and Technology, Tokyo

• Sagara K

  Tokyo Univ. Agriculture & Technol. Tokyo

• Shimizu Masaru

  Department Of Chemical Engineering Tokyo University Of Agriculture And Technology

• Shimizu Masaru

  Department Of Chemical Engineering Faculty Of Engineering Tokyo University Of Agriculture And Techno

• Hashimoto Atsushi

  Department Of Anesthesiology Aichi Medical University

• Sagara Koji

  Department of Chemical Engineering, Division of Applied Chemistry, Tokyo University of Agriculture & Technology

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