Different methods for control and comparison of the antioxidant properties of vegetables

The present study investigates the antioxidant properties of selected vegetables, using the total peroxyl radical-trapping parameter (TRAP), oxygen radical absorbance capacity (ORAC) and hydroxyl radical averting capacity (HORAC) methods. ORAC, TRAP and HORAC values well correlated with polyphenol c...

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Bibliographic Details
Published in:Food control 2010-04, Vol.21 (4), p.518-523
Main Authors: Číž, Milan, Čížová, Hana, Denev, Petko, Kratchanova, Maria, Slavov, Anton, Lojek, Antonín
Format: Article
Language:English
Subjects:
Antioxidant activity
antioxidants
free radical scavengers
peroxide value
Polyphenols
reactive oxygen species
vegetable extracts
Vegetables
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Summary:The present study investigates the antioxidant properties of selected vegetables, using the total peroxyl radical-trapping parameter (TRAP), oxygen radical absorbance capacity (ORAC) and hydroxyl radical averting capacity (HORAC) methods. ORAC, TRAP and HORAC values well correlated with polyphenol content. A good correlation was found also between the methods for measuring antioxidant capacity. Nevertheless, ORAC has been found to be the most sensitive method to measure chain-breaking antioxidant activity. Although we have found a good correlation between TRAP, ORAC and HORAC, using more than one antioxidant assay is recommended for more detailed understanding the principles of antioxidant properties of samples.
ISSN:0956-7135
1873-7129
DOI:10.1016/j.foodcont.2009.07.017