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BY-NC-ND 3.0 license Open Access Published by De Gruyter June 2, 2014

Nicht methylenunterbrochene cis,cis-Octadecadiensäuren Minor Constituents of Human Milk, VI Non Methylene Interrupted cis,cis-Octadecadienoic Acids

Inhaltstoffe der Frauenmilch, VI

  • Uwe Murawski , Heinz Egge , Paul György and Fritz Zilliken

The non methylene interrupted cis,cis-octadecadienoic acids from human milk fat were pre­pared by thin layer chromatography on AgNO3 impregnated silicagel plates. The position of double bonds was determined by hydroxylation of the double bonds with OsO4 followed by silylation. The corresponding O-trimethylsilylether derivatives of the fatty acid methyl esters were analyzed by gaschromatography mass spectrometry. 14 isomers of the following series could be identified: C18:2 ⊿9. (12.13.14.15.16.17) ; C18:2 ⊿ (6.7.8.9.).12; C18:2 ⊿ (10.11.12.).15 (⊿18.15) ; C18:2 ⊿5.9-, ⊿6.10; ⊿10.14; (⊿12.16). Possible biosynthetic pathways are discussed.

Received: 1973-7-5
Published Online: 2014-6-2
Published in Print: 1974-2-1

© 1946 – 2014: Verlag der Zeitschrift für Naturforschung

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

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