H. van Steenbergen
- Detection and Identification of Natural Antioxidants in Edible Oil using LC Fractionation with Off-line Effect-Based Detection
- LC GC Europe
- Volume | Issue number
- 26 | 1
- Pages (from-to)
- Document type
- Faculty of Science (FNWI)
- Van 't Hoff Institute for Molecular Sciences (HIMS)
Many edible oils contain natural antiaidants that protect the oil from lipid oxidation. Knowledge on the identity of these oxidation inhibitors is crucial for finding natural ways to protect healthy unsaturated fats and oils from turning rancid. In this article a new assay that allows rapid quantification of the lipid oxidation-inhibiting potential of pure compounds or liquid chromatographic (LC) fractions is described. The assay uses accelerated ageing of docosahexaenoic acid ethyl ester (DHA-EE) to quantify the extent of oxidation and oxidation inhibition. In the assay fast gas chromatography (GC) is used to monitor the disappearance of the DHA-EE and the appearance of volatile oxidation products. The method is fast and allows multiple fractions to be tested in parallel.
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