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512. A photoelectric method for determination of fat aldehyde values

Published online by Cambridge University Press:  01 June 2009

R. M. Dolby
R. M. Dolby
Affiliation:
The Dairy Research Institute (N.Z.), Palmerston North, New Zealand
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Extract

In the determination of aldehyde values of slightly oxidized butterfat samples by Schibsted's method, the colour of the butterfat prevents accurate matching with the colour standard. Interference by butterfat colour is eliminated, and more accurate results are obtained if the colour is measured in a photoelectric colorimeter at a wavelength of 510 mµ. A small constant correction for the absorption by butterfat at this wave-length may be made.

Type
Original Articles
Information
Journal of Dairy Research , Volume 20 , Issue 2 , June 1953 , pp. 198 - 200
Copyright
Copyright © Proprietors of Journal of Dairy Research 1953

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References

REFERENCES

(1)Schibsted, H. (1932). J. industr. Engng Chem. (Anal. Ed.).Google Scholar
(2)Mummery, W. R. (1947). J. Dairy Res. 15, 55.Google Scholar