Microbial inactivation under high-pressure carbonation

Mitsuya Shimoda

Research output: Contribution to journalReview article

Abstract

The effects of temperature and concentration of dissolved CO 2 on the death kinetics of Saccharomyces cerevisiae were demonstrated. Several combinations of pressures (4, 6, 8, 10 MPa) and temperatures (30, 34, 36, 38°C) were used. The D-values obtained were 0.14 min at 8 MPa and 38°C, and 0.15 min at 10 MPa and 36°C. The log D-values were related linearly to the treatment temperature and to the dissolved CO 2 concentration. The thermal resistance constant was 9.5°C, and the CO 2 resistance constant was 7.2 γ. This work enables the estimation of the D-values at any temperature and any CO 2 concentration. Non-thermal inactivation of microorganisms would be realized by the present technique.

Original languageEnglish
Pages (from-to)199-204
Number of pages6
JournalReview of High Pressure Science and Technology/Koatsuryoku No Kagaku To Gijutsu
Volume12
Issue number3
Publication statusPublished - Dec 1 2002

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All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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