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.
|Number of pages||6|
|Journal||Review of High Pressure Science and Technology/Koatsuryoku No Kagaku To Gijutsu|
|Publication status||Published - Dec 1 2002|
All Science Journal Classification (ASJC) codes
- Materials Science(all)
- Condensed Matter Physics