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Potassium Content of Dried Milk¹

Department of Animal Sciences, Colorado State University, Fort Collins

ABSTRACT

A large body of data on the potassium content of dried milk has been accumulated by the Los Alamos Scientific Laboratory in connection with a nationwide monitoring program for levels of Cs¹³⁷ in milk. These data probably represent the largest available collection of potassium analyses of milk and it was felt that it would be of interest to research workers interested in the chemical composition of milk.

The studies of Rook and Wood (7, 8) have shown that healthy cows have a remarkable consistency in the potassium content of milk. These workers, as well as Barry and Rowland (3), have investigated the relationship between the secretion of potassium (and other cations) and lactose in cows' milk. Kamal et al. (5) found that high temperature decreased the amount of potassium in milk. Nickerson (6) studied the variation in chemical composition of milk from six areas in California. His studies did not include potassium, but it is of interest that most of the 23 components studied showed a highly significant variation between areas.

¹ The original data from which this paper was prepared were supplied by the Los Alamos Scientific Laboratory, Los Alamos, New Mexico, through the courtesy of Doctors W. H. Langham and E. C. Anderson.