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An appraisal of methods used in the examination of retail samples of cows milk.

Authors
  • Greenwood, M H
  • Gill, P
  • Coetzee, E F
  • Ford, B M
  • Hooper, W L
  • Matthews, S C
  • Patrick, S
Type
Published Article
Journal
Epidemiology and infection
Publication Date
Jun 01, 1988
Volume
100
Issue
3
Pages
369–378
Identifiers
PMID: 3288490
Source
Medline
License
Unknown

Abstract

The use of the methylene blue test for the examination of cows milk was investigated in an inter-laboratory survey. A poor relationship was found between results of these tests and total viable counts. Coliforms were detected in a large number of pasteurized milks, indicating frequent post-pasteurization contamination. No relationship was found between the results of the methylene blue test and the presence of coliforms. Results from this survey highlight the need for reappraisal of the methylene blue test as a statutory method for the examination of milk. A total viable count and coliform test are suggested for providing information regarding dairy hygiene and the quality of the product at the point of retail sale.

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