Comparison of Two Analytical Methods for Assessing Antioxidant Capacity of Rapeseed and Olive Oils

Journal of the American Oil Chemists' Society
2008.0

Abstract

<jats:title>Abstract</jats:title><jats:p>The oxygen radical absorbance capacity (ORAC) and the ferric reducing antioxidant power (FRAP) methods were used for the determination of antioxidant capacities (AC) of rapeseed oils at different steps of technological process and olive oils. The mean ORAC and FRAP results obtained for rapeseed oils (1,106–160 and 552–95.6 μmol TE/100 g) were higher than for olive oils (949–123 and 167–32.1 μmol TE/100 g). Although, FRAP values were lower than ORAC values for all studied oils, there is a linear and significant correlation between these two analytical methods (<jats:italic>r</jats:italic> = 0.9665 and 0.9298, <jats:italic>P</jats:italic> &lt; 0.0005) for rapeseed and olive oils, respectively). Also, total phenolic compounds in rapeseed oils and olives correlated with antioxidant capacities (correlation coefficient ranged between 0.9470 and 0.8049). The refining process of rapeseed oils decreased the total phenolics content and antioxidant capacities by about 80%.

Knowledge Graph

Similar Paper

Comparison of Two Analytical Methods for Assessing Antioxidant Capacity of Rapeseed and Olive Oils
Journal of the American Oil Chemists' Society 2008.0
Total Antioxidant Capacity of Plant Foods, Beverages and Oils Consumed in Italy Assessed by Three Different In Vitro Assays
The Journal of Nutrition 2003.0
Screening and comparing tocopherols in the rapeseed (<i>Brassica napus</i>L.) and olive (<i>Olea europaea</i>L.) varieties using high-performance liquid chromatography
International Journal of Food Sciences and Nutrition 2008.0
Determination of antioxidant compounds and antioxidant activity in commercial oilseeds for food use
Food Chemistry 2007.0
Antioxidant capacity of BO-653, 2,3-dihydro-5-hydroxy-4,6-di-tert-butyl-2,2-dipentylbenzofuran, and uric acid as evaluated by ORAC method and inhibition of lipid peroxidation
Bioorganic &amp; Medicinal Chemistry Letters 2008.0
Some rape/canola seed oils: fatty acid composition and tocopherols
Zeitschrift für Naturforschung C 2016.0
Antioxidant Capacity of Oat (<i>Avena sativa</i> L.) Extracts. 2. In Vitro Antioxidant Activity and Contents of Phenolic and Tocol Antioxidants
Journal of Agricultural and Food Chemistry 1999.0
Antioxidant activity of methanolic extracts from three coriander (Coriandrum sativum L.) fruit varieties
Arabian Journal of Chemistry 2017.0
Phenolic Compounds and Antioxidant Capacities of 10 Common Edible Flowers from China
Journal of Food Science 2014.0
A multivariate study of the correlation between tocopherol content and fatty acid composition in vegetable oils
Journal of the American Oil Chemists' Society 1997.0