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Journal of the American Oil Chemists’ Society

, Volume 73, Issue 12, pp 1729–1731 | Cite as

Separation and identification of ximenynic acid isomers in the seed oil ofSantalum spicatum R.Br. as their 4,4-dimethyloxazoline derivatives

  • Yandi D. Liu
  • Robert B. Longmore
  • John E. D. Fox
Short Communication

Abstract

The seed oil ofSantalum spicatum contains a significant amount of ximenynic acid,trans-11-octadecen-9-ynoic acid, a long-chain acetylenic fatty acid, as a major component (34%). The identity oftrans-ximenynic acid was confirmed after isolation by ultraviolet, infrared, and nuclear magnetic resonance (NMR) (1H- and13C-) spectroscopy and by gas chromatography/mass spectrometry (GC/MS). Thecis isomer of ximenynic acid was also found (<1%) in some samples. Thecis andtrans isomers were characterized by GC/MS comparison of their methyl esters and 4,4-dimethyloxazoline derivatives.

Key Words

4,4-Dimethyloxazoline fatty acid methyl ester gas chromatography isomers sandalwood (Santalum spicatumximenynic acid 

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Copyright information

© AOCS Press 1996

Authors and Affiliations

  • Yandi D. Liu
    • 2
  • Robert B. Longmore
    • 2
  • John E. D. Fox
    • 1
  1. 1.School of Environmental BiologyCurtin University of TechnologyPerthAustralia
  2. 2.School of PharmacyCurtin University of TechnologyPerth

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