Biocontrol Science
Online ISSN : 1884-0205
Print ISSN : 1342-4815
Kinetic Analysis of the Bactericidal Action of Magnesium Oxide Powder Slurry against Escherichia coli
JUN SAWAINAOKI ISHIZUMASAYUKI ITOH
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2003 Volume 8 Issue 3 Pages 123-127

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Abstract

The death of Escherichia coil in magnesium oxide (MgO) powder slurry was found to follow first-order reaction kinetics. The value of the apparent death rate constant (k) increased with the powder slurry concentration and the slurry temperature. The bactericidal action of the MgO powder slurry was greater than that of a NaOH solution of an identical pH. E. coil grown at lower temperatures (TG) became more sensitive to MgO. The Arrhenius plots of k for E. coil grown at 27, 37 and 45°C exhibited discontinuous points (Td) at approximately 13, 21 and 29°C, respectively, and the differences, TG-Td, were observed to be almost constant (14-16°C)

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© The Society for Antibacterial and Antifungal Agents, Japan
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