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Title

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

AuthorsMárquez Ruiz, Gloria ; Martín-Polvillo, M.; Dobarganes, M. Carmen
KeywordsHigh performance size exclusion ctiromatography
Oxidation (stage)
Oxidized triglyceride dimers
Oxidized triglyceride monomers
Issue Date30-Apr-1996
PublisherConsejo Superior de Investigaciones Científicas (España)
CitationGrasas y Aceites 47(1-2): 48-53 (1996)
AbstractQuantitation 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.
Description6 páginas, 4 figuras.
Publisher version (URL)http://dx.doi.org/10.3989/gya.1996.v47.i1-2.842
URIhttp://hdl.handle.net/10261/26964
DOI10.3989/gya.1996.v47.i1-2.842
ISSN0017-3495
E-ISSN1988-4214
Appears in Collections:(IG) Artículos
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