Hydrogenation and spectral absorption studies on methyl linoleate, methyl linolenate, and soybean oil View Full Text


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Article Info

DATE

1945-11

AUTHORS

B. F. Daubert, L. J. Filer

ABSTRACT

Spectroscopic evidence has been obtained to indicate that a double bond acid which resists conjugation on alkali isomerization is produced on the partial hydrogenation of methyl linoleate. This iso-acid is found in methyl linoleate subjected to hydrogenation at room temperature, atmospheric pressure, using a supported palladium black catalyst. The acid may be identical with that which arises from a preferential hydrogenation of 9,12,15-linolenic acid. Soybean oil hydrogenated under similar conditions contains an iso-diene acid that resists conjugation by alkali. The source of this acid has not been determined. Lead salt separations of soybean oil fatty acids and low temperature solvent crystallization of soybean oil fatty acids and glycerides resulted in some concentration of the iso-acid. Further work involving bromination and/or oxidation of these concentrates is necessary before the structure of the iso-acid can be established with certainty. More... »

PAGES

299-302

References to SciGraph publications

  • 1945-06. Fatty acid analyses of known mixtures of purified methyl esters in JOURNAL OF THE AMERICAN OIL CHEMISTS' SOCIETY
  • Identifiers

    URI

    http://scigraph.springernature.com/pub.10.1007/bf02544134

    DOI

    http://dx.doi.org/10.1007/bf02544134

    DIMENSIONS

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