349. A simple method of conducting the phosphatase test
- 1 June 1947
- journal article
- research article
- Published by Cambridge University Press (CUP) in Journal of Dairy Research
- Vol. 15 (1-2) , 57-61
- https://doi.org/10.1017/s0022029900004921
Abstract
The value of the phosphatase reaction for controlling the heat treatment of milk is unquestioned, but the accepted method of estimating phosphatase activity, namely, the colorimetric method of Kay using the phenol reagent of Folin, has three disadvantages: (1) The number of estimations that can be performed in a given time is limited. (2) Errors in matching the tints may occur. (3) Samples of milk may be accidentally contaminated with traces of phenol, and this will lead to too high a Lovibond value.Keywords
This publication has 2 references indexed in Scilit:
- The phosphatase reaction as an aid to the identification of micro‐organisms using phenolphthalein phosphate as substrateThe Journal of Pathology and Bacteriology, 1943
- Preparation of phenolphthalein phosphateThe Journal of Pathology and Bacteriology, 1943