Abstract
During the course of an investigation on the rate of growth of Str. lactis in raw and heated milk, it was found that the rate of growth as estimated by the colony count test at 37° C. was very much greater in heated milk (milk heated to 70° C. for one hour), but that the reduction of methylene blue and resazurin was the same, in spite of this apparent greater metabolic activity of the organisms.
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References
Hobbs, B. C., J. Dairy Res., 10, 49 (1939).
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MORRIS, C., EDWARDS, M. Limitations of the Colony Count Test for Assessing the Total Number of Viable Bacteria in Raw and Heated Milk. Nature 160, 434–435 (1947). https://doi.org/10.1038/160434b0
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DOI: https://doi.org/10.1038/160434b0
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