Accelerated death kinetics of Aspergillus niger spores under high-pressure carbonation.
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 degrees 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.
Shimoda
M
M
Department of Bioscience and Biotechnology, Faculty of Agriculture, Kyushu University, Fukuoka, Japan. mshimoda@agr.kyushu-u.ac.jp
Kago
H
H
Kojima
N
N
Miyake
M
M
Osajima
Y
Y
Hayakawa
I
I
D001234:Aspergillus niger / Q000254:growth & development*; D002245:Carbon Dioxide / Q000494:pharmacology*; D005519:Food Preservation / Q000379:methods*; D006874:Hydrostatic Pressure; D007700:Kinetics; D012995:Solubility; D013172:Spores, Fungal / Q000254:growth & development*; D013696:Temperature; D013997:Time Factors
D002245:Carbon Dioxide