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Journal of Dairy Science Vol. 55 No. 4 403-407
© 1972 by American Dairy Science Association ®
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Automated Determination of Milk Fat in Milk

Lawrence Stookey, Aldo Conetta and Hans Zehnder

Technicon Industrial Systems, Tarrytown, New York 10591

ABSTRACT

The Technicon AutoAnalyzer has been adapted to the determination of milk fat in milk. A sample is dissolved in acetic acid containing a surfactant, and milk fat is resuspended as uniform colloidal globules by addition of water. Absorbance of the suspension is measured at 600 nm. Linear response from 1.5 to 7% milk fat is obtained. No interference from protein or lactose is encountered. The correlation coefficient is .96 between either the Babcock or Gerber method and the automated turbidimetric method.






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Copyright © 1972 by the American Dairy Science Association ®.