Quantitation of oxidized triglyceride monomers and dimers as an useful measurement for early and advanced stages of oxidation

Authors

  • G. Márquez-Ruiz Instituto de la Grasa (CSIC).
  • M. Martín-Polvillo Instituto de la Grasa (CSIC), Sevilla
  • M. C. Dobarganes Instituto de la Grasa (CSIC), Sevilla

DOI:

https://doi.org/10.3989/gya.1996.v47.i1-2.842

Keywords:

High performance size exclusion ctiromatography, Oxidation (stage), Oxidized triglyceride dimers, Oxidized triglyceride monomers,

Abstract


Quantitation of oxidized triglyceride monomers and dimers is reported as a good measurement for early and advanced stages of oxidation. Applicability of this approach to follow-up oxidation was tested in samples of trilinolein and methyl linoleate stored at either room temperature or 60°C for different periods of time. Oxidized monomers, dimers and polymers were determined in 50 mg-samples by adding monostearin as internal standard and applying a combination of adsorption chromatography, using silica cartridges, followed by high-performance size-exclusion chromatography. Additionally, peroxide values and tocopherol contents were measured. Results showed that a significant rise of dimeric compounds denoted the end of the induction period while oxidized monomers were the only group of compounds showing a progressive increase during the early stages of oxidation.

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Published

1996-04-30

How to Cite

1.
Márquez-Ruiz G, Martín-Polvillo M, Dobarganes MC. Quantitation of oxidized triglyceride monomers and dimers as an useful measurement for early and advanced stages of oxidation. grasasaceites [Internet]. 1996Apr.30 [cited 2022Dec.7];47(1-2):48-53. Available from: https://grasasyaceites.revistas.csic.es/index.php/grasasyaceites/article/view/842

Issue

Section

Monography

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