Accelerated death kinetics of Aspergillus niger spores under high-pressure carbonation

M. Shimoda, H. Kago, N. Kojima, M. Miyake, Y. Osajima, I. Hayakawa

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Abstract

The death kinetics of Aspergillus niger spores under high-pressure carbonation were investigated with respect to the concentration of dissolved CO2 (dCO2) and treatment temperature. All of the inactivation followed first-order death kinetics. The D value (decimal reduction time, or the time required for a 1-log-cycle reduction in the microbial population) in the saline carbonated at 10 MPa was 0.16 min at 52°C. The log D values were linearly related to the treatment temperature and the concentration of dCO2, but a significant interaction was observed between them.

Original languageEnglish
Pages (from-to)4162-4167
Number of pages6
JournalApplied and environmental microbiology
Volume68
Issue number8
DOIs
Publication statusPublished - Aug 13 2002

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All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Food Science
  • Applied Microbiology and Biotechnology
  • Ecology

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