Heat Resistance of Bacterial Spores at Various Water Activities

Abstract

THE wide range in the heat resistance of bacterial spores in dilute neutral solutions is well known but still unexplained. Studies of spores having a wide range of heat resistance (greater than 104-fold) in phosphate buffer (0.05M, pH 7) have shown that these differences in heat resistance largely disappear when the spores are heated in a substantially dry state.

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References

  1. 1

    Robinson, R. A., and Stokes, R. H., “Electrolyte Solutions”, Appendix 8, 11 (Butterworth, London, 1955).

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MURRELL, W., SCOTT, W. Heat Resistance of Bacterial Spores at Various Water Activities. Nature 179, 481–482 (1957) doi:10.1038/179481a0

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