Evaluation of the Antioxidant Capacity of Individual Phenolic Compounds in Virgin Olive Oil
- 22 October 2005
- journal article
- research article
- Published by American Chemical Society (ACS) in Journal of Agricultural and Food Chemistry
- Vol. 53 (23), 8918-8925
- https://doi.org/10.1021/jf0515680
Abstract
Virgin olive oil has a high resistance to oxidative deterioration due to its tryacylglycerol composition low in polyunsaturated fatty acids and due to the presence of a group of phenolic antioxidants composed mainly of polyphenols and tocopherols. We isolated several phenolic compounds of extra virgin olive oil (phenyl-ethyl alcohols, lignans, and secoiridoids) by semipreparative high-performance liquid chromatography (HPLC) and identified them using ultraviolet, atmospheric pressure chemical ionization, and electrospray ionization MS detection. The purity of these extracts was confirmed by analytical HPLC using two different gradients. Finally, the antioxidant capacity of the isolated compounds was evaluated by measuring the radical scavenging effect on 1,1-diphenyl-2-picrylhydrazyl radical, by accelerated oxidation in a lipid model system (OSI, oxidative stability instrument), and by an electrochemical method. Keywords: Polyphenols; olive oil; HPLC; antioxidant activity; antioxidant power; DPPH; OSIKeywords
This publication has 22 references indexed in Scilit:
- Secoiridoids, Tocopherols, and Antioxidant Activity of Monovarietal Extra Virgin Olive Oils Extracted from Destoned FruitsJournal of Agricultural and Food Chemistry, 2005
- Sensitive Determination of Phenolic Acids in Extra-Virgin Olive Oil by Capillary Zone ElectrophoresisJournal of Agricultural and Food Chemistry, 2004
- Contribution of the Phenolic Fraction to the Antioxidant Activity and Oxidative Stability of Olive OilJournal of Agricultural and Food Chemistry, 2004
- Effect of Olive Ripening Degree on the Oxidative Stability and Organoleptic Properties of Cv. Nostrana di Brisighella Extra Virgin Olive OilJournal of Agricultural and Food Chemistry, 2004
- Sensory Properties of Virgin Olive Oil Polyphenols: Identification of Deacetoxy-ligstroside Aglycon as a Key Contributor to PungencyJournal of Agricultural and Food Chemistry, 2003
- Phenolic content and antioxidant activity of olive extractsFood Chemistry, 2001
- Quantification of the overall REACTIVE OXYGEN SPECIES scavenging capacity of biological fluids and tissuesFree Radical Biology & Medicine, 2000
- Antioxidant activity of virgin olive oil phenolic compounds in a micellar systemJournal of the Science of Food and Agriculture, 1999
- Effect of Biophenols on Olive Oil Stability Evaluated by Thermogravimetric AnalysisJournal of Agricultural and Food Chemistry, 1998
- Phenolic compounds and stability of virgin olive oil—Part IFood Chemistry, 1992