Inactivation effect of infrared radiation heating on bacterial spores pretreated at various water activities

Daisuke Hamanaka, Toshitaka Uchino, Naomi Furuse, Shun Ichiro Tanaka

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

Bacillus subtilis spores pretreated at various water activities (a w, from 0.005 to 0.996) were inactivated by infrared radiation heating (IRH) at 0.5 and 1.0 kW of electric power under dry conditions in an open system. The resistance of B. subtilis spores to IRH was greater in the range of 0.25 to 0.874 aw, and had the maximum value when a w was 0.796 at 0.5 kW and 0.688 at 1.0 kW. Markedly lower IRH resistance of B. subtilis spores was observed at the lower or higher levels of aw.

Original languageEnglish
Pages (from-to)61-65
Number of pages5
JournalBiocontrol Science
Volume10
Issue number1-2
DOIs
Publication statusPublished - Jun 2005

All Science Journal Classification (ASJC) codes

  • Applied Microbiology and Biotechnology
  • Public Health, Environmental and Occupational Health

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