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59. Studies in the Bacteriology of Low-Temperature Pasteurisation. I. The Significance of Heat-Resisting Organisms in Raw Milk Supplies

Published online by Cambridge University Press:  01 June 2009

Edward B. Anderson
Affiliation:
United Dairies Research Department, London
Leonard J. Meanwell
Affiliation:
United Dairies Research Department, London

Extract

In the course of routine bacteriological examinations of milk carried out at one of the United Dairies pasteurising depots during the past three years, a remarkable lack of constant relationship between the numbers of colonies reported on the 1/10, 1/100 and 1/1000 dilution plates, when standard agar (the Ministry of Health formula) was used, has been observed. When, however, standard agar, enriched with 0·5 per cent, milk, has been used as a plating medium, many of the discrepancies between different dilutions of the same milk have disappeared.

Type
Original Articles
Copyright
Copyright © Proprietors of Journal of Dairy Research 1933

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References

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