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Microcalorimetry applied to certain species of bacteria growing in sterilized separated milk

Published online by Cambridge University Press:  01 June 2009

N. J. Berridge ,
Christina M. Cousins  and
A. J. Cliffe
N. J. Berridge
Affiliation:
National Institute for Research in Dairying, Shinfield, Reading, RG2 9AT
Christina M. Cousins
Affiliation:
National Institute for Research in Dairying, Shinfield, Reading, RG2 9AT
A. J. Cliffe
Affiliation:
National Institute for Research in Dairying, Shinfield, Reading, RG2 9AT
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Summary

The heat produced per colony-forming unit (CFU) of growing bacteria was found to depend on the species and was greater the younger the culture. With the exception of 2 determinations out of 13, with 6 species the results show that it should be possible to detect < 5×105 CFU/ml by the heat produced. A seventh species, a micrococcus, could be detected at a lower level of CFU presumably because the unit was a clump of several cells. Gross variations which occurred with fullcream milk await investigation.

Type
Research Article
Information
Journal of Dairy Research , Volume 41 , Issue 2 , June 1974 , pp. 203 - 215
Copyright
Copyright © Proprietors of Journal of Dairy Research 1974

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References

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