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Journal of Lipid Research, Vol. 1, 40-47, October 1959
Copyright © 1959 by Lipid Research, Inc.

Qualitative microanalysis and estimation of sphingolipid bases

C. C. Sweeley and E. A. Moscatelli

Laboratory of Chemistry of Natural Products, National Heart Institute, National Institutes of Health, Bethesda 14, Maryland

A method is described for the identification and determination of sphingolipid long-chain bases in various animal and plant lipids. Sphingosine and related bases, isolated as a mixture from acid hydrolysates of sphingolipids, are oxidized by sodium metaperiodate and the fatty aldehyde reaction products are isolated and analyzed by gas-liquid partition chromatography. The records thus obtained reflect the composition of the sphingolipid base fraction. A preliminary survey of various tissues is reported and the types of long-chain base found for each tissue are given. Evidence is presented for the presence of a new long-chain base associated with the sphingomyelin fraction of human plasma lipids.

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