2023
DOI: 10.1590/fst.121522
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Comparison of antioxidant activities expressed as equivalents of standard antioxidant

Abstract: The quantitative antioxidant activity of foods is expressed as the equivalent weight of the authentic standard compounds with antioxidant function. Even in the same food sample, antioxidant activity is defined differently depending on the standard antioxidant compounds, making it difficult to compare them. Antioxidant activity was measured by DPPH radical and ABTS radical scavenging assay using Trolox, ascorbic acid, catechin, and gallic acid as standard antioxidant compounds. The relationship between the anti… Show more

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Cited by 6 publications
(3 citation statements)
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References 20 publications
(18 reference statements)
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“…For instance, Floegel et al [48] studied the antioxidant capacity in methanolic extracts of fruits and vegetables. However, for comparison purposes, the results were converted from vitamin C equivalents to Trolox equivalents [50]. In their study, blueberries exhibited the highest ABTS value (8.31 ± 0.44 mg TE/g DW), greater than the values obtained in our current work for the analyzed plants and algae, as expected considering that it is known for being rich in antioxidants.…”
Section: Discussionsupporting
confidence: 61%
“…For instance, Floegel et al [48] studied the antioxidant capacity in methanolic extracts of fruits and vegetables. However, for comparison purposes, the results were converted from vitamin C equivalents to Trolox equivalents [50]. In their study, blueberries exhibited the highest ABTS value (8.31 ± 0.44 mg TE/g DW), greater than the values obtained in our current work for the analyzed plants and algae, as expected considering that it is known for being rich in antioxidants.…”
Section: Discussionsupporting
confidence: 61%
“…It is known that lavender essential oils and hydroalcoholic extracts have antioxidant potential, as they scavenge DPPH radical molecules. Still, their capacity is relatively weaker than that of vitamin C and Trolox used as antioxidant reference compounds [56]. Generally, the antioxidant activity of the LA, LL and G90 crude essential oils is related to the major active compounds in the essential oil, such as linalool and its derivatives [57].…”
Section: Discussionmentioning
confidence: 99%
“…After mixing the solution for one minute, the absorbance was measured for the next six minutes. The percentage of inhibition was computed using the following formula: AA (%) = [(A ABTS+ – A x )/ (A ABTS+ )] × 100 [ 49 51 ].…”
Section: Methodsmentioning
confidence: 99%