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436. The estimation of citric acid in dairy products

Published online by Cambridge University Press:  01 June 2009

J. Babad  and
N. Shtrikman
J. Babad
Affiliation:
Dairy Research Laboratory, Agricultural Research Station, Rehovoth, Israel*
N. Shtrikman
Affiliation:
Dairy Research Laboratory, Agricultural Research Station, Rehovoth, Israel*
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Extract

A rapid method for the colorimetric analysis of micro quantities, of citric acid beginning at concentrations of 0·01% of citric acid in milk and in dairy products has been described. The analysis is based on the yellow colour which develops upon reacting citric acid with pyridine in a solution of acetic anhydride, as applied by Saffran & Denstedt for the estimation of citric acid in blood. The accuracy of the method in the ranges normally used in the estimation of citric acid in milk is approximately ±3%. Examples of determinations in milk and dairy products are given.

Type
Original Articles
Information
Journal of Dairy Research , Volume 18 , Issue 1 , February 1951 , pp. 72 - 76
Copyright
Copyright © Proprietors of Journal of Dairy Research 1951

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References

REFERENCE

(1)Stahre, (1915). Analyst, 40, 464.Google Scholar
(2)Kometiani, (1932). Analyst, 58, 38.Google Scholar
(3)Lampitt, & Rooke, (1936). Analyst, 58, 38.Google Scholar
(4)Allen, (1931). J. Dairy Res. 3, 1.CrossRefGoogle Scholar
(5)Deysher, & Holm, (1942). Industr. Engng Chem., Anal, , ed., 14, 4.Google Scholar
(6)Sjöström, & Emilsson, (1945). Svensk kem. Tidskr. 57, 187. (In Chem. Abstr. 40, 25422.)Google Scholar
(7)Heinemann, (1944). J. Dairy Sci. 27, 377.CrossRefGoogle Scholar
(8)Saffran, & Denstedt, (1948). J. biol. Chem. 175, 849.CrossRefGoogle Scholar
(9)Furth, & Hermann, (1935). Biochem. Z. 280, 448.Google Scholar
(10)Ayres, (1949). Analyt. Chem. 21, 652.CrossRefGoogle Scholar