Applications on thermostable polar capillary GC columns

Authors

  • M. T. Rodríguez-Estrada Dept. Scienze degli Alimenti, Università degli Studi di Bologna
  • N. Frega Dept. Biotecnologie Agrarie e Ambientali, Università degli Studi di Ancona
  • G. Lercker Dept. Scienze degli Alimenti, Università degli Studi di Bologna

DOI:

https://doi.org/10.3989/gya.2002.v53.i1.291

Keywords:

Gas chromatography, Lipids, Polar columns, Thermostable columns, Unsaponifiable fraction

Abstract


The composition, the effect of processing and storage, and the overall quality of food lipids can be evaluated by gas chromatography (GC). GC analyses are carried out on non-polar or polar capillary columns, which separate the various lipid components according to their polarity and boiling points. However, there are components with high-boiling points that require higher temperatures in order to be better resolved. Thermostable polar GC columns with a relatively low column bleeding, can be used for this scope. These columns generate GC traces with different separation characteristics, which can lead to the identification of components that cannot be completely resolved with non-polar GC columns. Thermostable polar GC columns are suitable for the separation of different lipid classes and can be utilised for a fast screening of the total unsaponifiable matter of the oil or lipid extract. A series of examples for the analysis of food lipids with thermostable polar GC columns, are here described.

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Published

2002-03-30

How to Cite

1.
Rodríguez-Estrada MT, Frega N, Lercker G. Applications on thermostable polar capillary GC columns. grasasaceites [Internet]. 2002Mar.30 [cited 2022Dec.1];53(1):76-83. Available from: https://grasasyaceites.revistas.csic.es/index.php/grasasyaceites/article/view/291

Issue

Section

Monography