The cytochromecoxidase test for the rapid detection of psychrotrophic bacteria in milk
- 1 August 1985
- journal article
- research article
- Published by Wiley in Journal of Applied Bacteriology
- Vol. 59 (2) , 137-141
- https://doi.org/10.1111/j.1365-2672.1985.tb03312.x
Abstract
A new, rapid, simple and cheap method for the detection of the predominant psychorotrophic bacteria in raw and pasteurized milks is described, using tetramethyl-p-phenylene-diamine dihydrochloride to detect cytochrome c oxidase which in general is not present in the non-psychorotrophic bacteria milk flora. The test is sensitive to samples containing over 104 organisms/ml. Correlation coefficients of 0.92 and 0.84 between dye oxidation and viable counts for pasteurized and raw milk samples, respectively, were found.This publication has 8 references indexed in Scilit:
- Detection of post‐pasteurization contamination of cream by impedimetric methodsJournal of Applied Bacteriology, 1984
- Stimulation of Streptococcus thermophilus growth in mastitic milkJournal of Dairy Research, 1984
- A survey of sources of heat-resistant bacteria in milk with particular reference to psychrotrophic spore-forming bacteriaJournal of Dairy Research, 1983
- Effect of psychrotrophic post-pasteurization contamination on the keeping quality at 11 and 5 °C of HTST-pasteurized milk in the UKJournal of Dairy Research, 1982
- The pyruvate test for monitoring the bacteriological quality of raw silo tank milkJournal of Dairy Research, 1981
- A RAPID TEST TO FIND “POTENTIALLY” PSYCHROPHILIC ORGANISMS IN PASTEURIZED DAIRY PRODUCTSJournal of Milk and Food Technology, 1968
- Identification of Pseudomonas pyocyanea by the Oxidase ReactionNature, 1956
- Keeping quality and raw-milk grading: I. Dye tests as measures of the keeping quality of milkJournal of Dairy Research, 1950