Scientific Reports of the Faculty of Agriculture, Okayama University
Published by the Faculty of Agriculture, Okayama University
ONLINE ISSN : 2186-7755


Nakae, Toshitaka
Kataoka, Kei
A new reduction method for determining the sanitary quality of raw milk, which in called the resazurin test paper method; was evaluated comparing with the conventioal resazurin test tube method. The experimental results of the standard plate count method and two types of the resazurin reduction test using sixty samples of raw milk showed a high correlation between standard plate counts and grade number of resazurin test paper. The regression formula was obtained to estimate the standard plate counts from the grade number of resazurin paper. It may be concluded that the resazurin test paper method is very convenient and as good as the conventional test tube method.