, Volume 1, Issue 4, pp 268–273

Keto fatty acids formCuspidaria pterocarpa seed oil

  • C. R. SmithJr.

DOI: 10.1007/BF02531614

Cite this article as:
Smith, C.R. Lipids (1966) 1: 268. doi:10.1007/BF02531614


The seed oil ofCuspidaria pterocarpa contains three keto fatty acids with unusually long carbon chains: 15-oxo-cis-18-tetracosenoic (5.4%), 17-oxo-cis-20-hexacosenoic (13.4%), and 19-oxo-cis-22-octacosenoic (3.3%) acids. These acids were isolated by countercurrent distribution of the corresponding methyl esters. Their structures were established by oxidative degradation, by reduction to known compounds, and by nuclear magnetic resonance and infrared spectra.

Copyright information

© American Oil Chemists’ Society 1966

Authors and Affiliations

  • C. R. SmithJr.
    • 1
  1. 1.Northern Regional Research LaboratoryPeoria