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Accelerated Death Kinetics of Aspergillus niger Spores under High-Pressure Carbonation

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

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

Topics: Food Microbiology
Publisher: American Society for Microbiology
Year: 2002
DOI identifier: 10.1128/AEM.68.8.4162-4167.2002
OAI identifier: oai:pubmedcentral.nih.gov:124054
Provided by: PubMed Central
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