Effect of different heat treatments on bacillus subtilis spores inactivated by ultraviolet irradiation

Daisuke Hamanaka, Hironori Yamada, Vipavee Trivittayasil, Takashi Kadoyanagi, Tanaka Fumihiko, Toshitaka Uchino

研究成果: ジャーナルへの寄稿記事

3 引用 (Scopus)

抄録

The influence of a combination of ultraviolet (UV) irradiation with infrared radiation heating (IRH) and conductive heating (CH) on the inactivation of bacterial spores (Bacillus subtilis) was investigated at 20, 30, 40, and 50°C on the surface of agar plates. The survival curves of B. subtilis spores were convex downward. Generally, the inactivation efficiency of UV irradiation with IRH was greater than that with CH for B. subtilis spores. A 4.1 log reduction of B. subtilis spores was obtained by 60 sec of UV irradiation with IRH at 50°C. The highest decimal reduction time was obtained at around 30°C of IRH. These variations in the inactivation characteristics of UV irradiation might be caused by differences in the UV and IR absorption characteristics of spores exposed at different temperatures.

元の言語英語
ページ(範囲)289-293
ページ数5
ジャーナルFood Science and Technology Research
17
発行部数4
DOI
出版物ステータス出版済み - 2011

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Bacilli
Bacillus subtilis
Spores
Heating
infrared radiation
spores
Hot Temperature
irradiation
Heat treatment
heat treatment
Irradiation
heat
Radiation
Infrared radiation
inactivation
Bacterial Spores
bacterial spores
Agar
agar
Temperature

All Science Journal Classification (ASJC) codes

  • Food Science
  • Industrial and Manufacturing Engineering
  • Chemical Engineering(all)
  • Biotechnology
  • Marketing

これを引用

Effect of different heat treatments on bacillus subtilis spores inactivated by ultraviolet irradiation. / Hamanaka, Daisuke; Yamada, Hironori; Trivittayasil, Vipavee; Kadoyanagi, Takashi; Fumihiko, Tanaka; Uchino, Toshitaka.

:: Food Science and Technology Research, 巻 17, 番号 4, 2011, p. 289-293.

研究成果: ジャーナルへの寄稿記事

Hamanaka, Daisuke ; Yamada, Hironori ; Trivittayasil, Vipavee ; Kadoyanagi, Takashi ; Fumihiko, Tanaka ; Uchino, Toshitaka. / Effect of different heat treatments on bacillus subtilis spores inactivated by ultraviolet irradiation. :: Food Science and Technology Research. 2011 ; 巻 17, 番号 4. pp. 289-293.
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