Determination of the wax ester content in olive oils. Improvement in the method proposed by EEC regulation 183/93

J Agric Food Chem. 1999 Jan;47(1):202-5. doi: 10.1021/jf980648j.

Abstract

A simpler and faster procedure than the official one described in document IV of European Economic Community Regulation 183/93 is proposed. The wax ester fraction is isolated from triglycerides using a commercially available silica gel column and carbon tetrachloride as eluent. The recovered wax ester fraction, with the addition of a suitable internal standard solution, is analyzed by gas chromatography. A column with a 65% phenyl methyl silicone stationary phase allows a satisfying separation of wax ester fraction in comparison with both a steryl ester and a light fraction eluted before the internal standard. Furthermore, also the single components of the wax ester fraction are suitably separated.

MeSH terms

  • Chromatography, Gas
  • Esters
  • Olive Oil
  • Plant Oils / chemistry*

Substances

  • Esters
  • Olive Oil
  • Plant Oils