Prediction of the shelf-life of pasteurized milk at different storage temperatures
Article first published online: 11 MAR 2008
Journal of Applied Bacteriology
Volume 65, Issue 4, pages 269–278, October 1988
How to Cite
Griffiths, M.W. and Phillips, J.D. (1988), Prediction of the shelf-life of pasteurized milk at different storage temperatures. Journal of Applied Bacteriology, 65: 269–278. doi: 10.1111/j.1365-2672.1988.tb01894.x
- Issue published online: 11 MAR 2008
- Article first published online: 11 MAR 2008
- Received 13 May 1988 and accepted 11 June 1988
Initial psychrotroph counts determined by a Most Probable Number technique were correlated with shelf-lives of pasteurized milk determined at a number of storage temperatures. The initial psychrotroph count was also correlated with a bacterial count carried out on milk agar containing crystal violet penicillin and nisin after previous incubation of the milk at 15°C for 25 h.
Pre-incubation counts carried out at a variety of temperatures and on a variety of media were examined for their relation to shelf-life. Shelf-lives at four pre-set temperatures (2, 6, 10 and 14°C) could best be predicted by pre-incubation of pasteurized milk at 15°C before inoculation on milk agar.
An equation which allows prediction of shelf-life of pasteurized milk at any storage temperature is described.