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Positional isomer composition of monounsaturated fatty acids from a lacustrine sediment

1977; Elsevier BV; Volume: 41; Issue: 2 Linguagem: Inglês

10.1016/0016-7037(77)90242-3

1872-9533

Hiromi Matsuda, Tadashirô Koyama,

Advanced Chemical Sensor Technologies

From the surface sediment of a eutrophic lake (Japan), the double bond position in the monounsaturated fatty acids (C15-C26) has been determined by combined gas chromatography-mass spectrometry of the methoxylated derivatives. The relative abundance of 11-octadecenoic acid, suggested to be of bacterial origin, is higher in the chloroform-methanol extract than the extract by saponification.