Issue 10, 2009

Facile chemiluminescence assay for antioxidative properties of vegetable lipids: fundamentals and illustrative examples

Abstract

The general approach disclosed herein opens the new possibilities of exploiting the oxidation processes followed by chemiluminescence (CL) emission for the assessment of an antioxidant potential of natural lipid materials and enables determination of the amount and strength of lipid-borne antioxidants in one experiment. The reliability of the analytical procedure is completely unaffected by an inevitable entering of oxidizable lipid portions into the probe chemiluminescent mixture, which is exemplarily illustrated for the case of vegetable oils which served as sources of antioxidant-containing lipids. As a matter of fact, the difference in the effective radical-scavenging rate constants, determined for the antioxidative constituents of the sunflower and corn oils, perfectly matches the distinction of their qualitative tocopherol contents. In addition to the antiradical activity of lipid samples, the antioxidant potential of the latter may be modified by their influence on hydroperoxide stability, as it has been also demonstrated in the present work.

Graphical abstract: Facile chemiluminescence assay for antioxidative properties of vegetable lipids: fundamentals and illustrative examples

Article information

Article type
Paper
Submitted
16 Mar 2009
Accepted
07 Aug 2009
First published
17 Aug 2009

Analyst, 2009,134, 2128-2134

Facile chemiluminescence assay for antioxidative properties of vegetable lipids: fundamentals and illustrative examples

G. F. Fedorova, V. A. Menshov, A. V. Trofimov and R. F. Vasil'ev, Analyst, 2009, 134, 2128 DOI: 10.1039/B905059K

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