Liquid chromatography with electrospray ionisation mass spectrometric detection of phenolic compounds from Olea europaea

J Chromatogr A. 1999 Sep 10;855(2):529-37. doi: 10.1016/s0021-9673(99)00719-0.

Abstract

The results demonstrate the potential of electrospray ionisation mass spectrometry for the specific detection of phenolic species in olives. Phenolic compounds were detected with greater sensitivity in the negative ion mode, but results from positive and negative ion modes were complementary with the positive ion mode showing structurally significant fragments. This is demonstrated by the identification of oleuropein and isomers of verbascoside. The structure of the latter were confirmed by retention, mass spectral and nuclear magnetic resonance data. These isomers have not previously been reported in olive.

MeSH terms

  • Carbohydrate Sequence
  • Chromatography, Liquid / methods*
  • Fruit / chemistry*
  • Magnetic Resonance Spectroscopy
  • Mass Spectrometry / methods*
  • Molecular Structure
  • Phenols / analysis*
  • Phenols / chemistry

Substances

  • Phenols