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The sterilizing effect against Bacillus subtilis spores of hydrogen peroxide at different temperatures and concentrations

Published online by Cambridge University Press:  01 June 2009

P. Swartling  and
B. Lindgren
P. Swartling
Affiliation:
Food Research Institute, Alnarp, Sweden
B. Lindgren
Affiliation:
Food Research Institute, Alnarp, Sweden
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Summary

An investigation was made of the death-rate of Bacillus subtilis spores in suspension in hydrogen peroxide concentrations of 10, 15 and 20% at 25, 50, 60, 70 and 80°C. Average logarithmic survival curves were plotted against normal time and death-rate constants and Q10 values were calculated from the graphically determined decimal reduction times. This treatment of the experimental findings was found to be warranted in the temperature range 60–80°C. The first-order death-rate constant was ∽ 0·1 s−1 for 10% hydrogen peroxide solution at 60°C and the Q10 was about 1·6. Increases in the concentration from 10 to 15% and from 15 to 20% each gave an increase of about 50% in the rate constant. The application of these data to commercial practice is discussed.

Type
Original Articles
Information
Journal of Dairy Research , Volume 35 , Issue 3 , October 1968 , pp. 423 - 428
Copyright
Copyright © Proprietors of Journal of Dairy Research 1968

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References

REFERENCES

Curran, H. R., Evans, F. R. & Leviton, A. (1940). J. Bact. 40, 423.CrossRefGoogle Scholar
Fernelius, A. L., Wilkes, Ch. E., De armon jr, I. A. & Lincoln, R. E. (1958). J. Bact. 75, 300.Google Scholar
Grinsted, E. & Clegg, L. F. L. (1955). J. Dairy Res. 22, 178.Google Scholar
Halvorson, H. O. (1957). J. appl. Bact. 20, 305.Google Scholar
Humphrey, A. E. & Nickerson, J. T. R. (1961). Appl. Microbiol. 9, 282.CrossRefGoogle Scholar
Meynell, G. G. & Meynell, E. (1965). Theory and Practice in Experimental Bacteriology, pp. 78–85. Cambridge University Press.Google Scholar
Morrison, E. & Rettger, L. (1930). J. Bact. 20, 299.CrossRefGoogle Scholar
Rotman, Y. & Fields, M. L. (1966). J. Fd Sci. 31, 437.Google Scholar
Schnell, J. & Ernst, R. R. (1962). Appl. Microbiol. 10, 452.Google Scholar
Swartling, P. & Lindgren, B. (1962). Rep. Milk Dairy Res. Alnarp, no. 66.Google Scholar
Wang, D. I. C., Sharer, J. & Humphrey, A. E. (1964). Appl. Microbiol. 12, 451.Google Scholar