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Does the Nickel Dissolved from the Container During Pasteurization Catalyze the Destruction of the Vitamins of Milk?

(From the Department of Vital Economics, University of Rochester, Rochester, N. Y.)

1. The nickel content of milk pasteurized in a nickel container was 15 parts nickel per million while the same milk pasteurized in a glass vessel contained no nickel.

2. A total of 390 rats and 140 guinea pigs was utilized for these experiments.

3. In testing the catalytic destruction by nickel of each of the vitamins A, B, and C, three groups of animals were fed a ration otherwise adequate and supplemented by raw milk, milk pasteurized in glass, and milk pasteurized in nickel respectively, to supply the vitamin in question.

4. There was no appreciable destruction of vitamin A by pasteurization in either a glass or a nickel container.

5. The antineuritic factor of the vitamin B complex was partially destroyed by pasteurization but there was no evidence of a catalysis of the destruction by nickel.

6. Vitamin C was partially destroyed by pasteurization but nickel did not seem to increase the destruction.

7. Determination of standard deviation and coefficients of variability shows the data to be satisfactory and to become more concordant as the experiment progressed. The differences between the two groups receiving milk pasteurized in glass and milk pasteurized in nickel are shown not to be of greater magnitude than the deviation within the groups.

8. Unless it can be demonstrated that nickel per se is beneficial to animals on these vitamin deficient diets, it is impossible to interpret the data as indicating any catalytic destruction of vitamin by nickel during the pasteurization process.

A study of the above summary and a study of the rate of development of deficiency diseases, acuteness of symptoms, autopsy findings, and growth curves, do not indicate that nickel dissolved from the container during pasteurization catalyzes the destruction of vitamins A, B, or C during the pasteurization process.

I wish to express my appreciation to Drs. J. R. Murlin, and H. A. Mattill for advice and guidance in the conduct of this investigation.

This article has been cited by other articles:

				L. E. GAUL and A. H. STAUD CLINICAL SPECTROSCOPY: THE QUANTITATIVE RETENTION OF NICKEL IN PSORIASIS; OBSERVATIONS ON FORTY-SIX CASES Arch Dermatol, November 1, 1934; 30(5): 697 - 703. [Abstract] [PDF]