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Journal of Lipid Research, Vol. 6, 466-470, October 1965
Copyright © 1965 by Lipid Research, Inc.

Isolation of 11-cyclohexylundecanoic acid from butter

J. C. M. Schogt and P. Haverkamp Begemann

Unilever Research Laboratory, Vlaardingen, The Netherlands

After fractionation using fractional distillation, recrystallization, urea treatment hydrogenation, and repeated urea treatment, a hitherto unknown acid has been isolated from butter fatty acid methyl esters. Gas-liquid chromatography followed by mass and infrared spectroscopy showed that the acid is saturated and it contains 17 carbon atoms and a terminal cyclohexyl group.

Synthetic 11-cyclohexylundecanoic acid appeared to be identical with the isolated acid.

Butter contains at least 0.01% of this acid.

Supplementary key words butter • 11-cyclohexylundecanoic acid isolation • carbon numbers

Submitted on March 10, 1965
Accepted on June 11, 1965

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