Green extracts scavenged ABTS
radicals to the highest degree, amounting from 0.28 up to 0.48.
No difference was observed for TAA, by the ABTS
assay, between the storage conditions evaluated.
According to results, ethanol extract exhibited stronger DPPH (I[C.sub.50]:52.10 [micro]g/mL) and ABTS
(I[C.sub.50]:64.76 [micro]g/mL) radical scavenging activity than other extracts.
DPPH and ABTS
radical scavenging activities, SOD-like activity, and total polyphenol and flavonoid contents were considered to evaluate the antioxidant potentials of tea extracts.
The determination of ABTS
radical scavenging was carried out as described by Re et.
While ORAC and Folin-Ciocalteu tests are not suitable for measuring liposoluble antioxidants, ABTS
can measure the activity of both water-soluble antioxidants and liposoluble ones and DPPH in turn is soluble only in organic solvents [27, 28].
Besides, in relation to the increase in wound healing property, the extract is able to scavenge DPPH, ABTS
, and superoxide anion radicals.
where [A.sub.sample] is the absorbance of ABTS
with tested samples and [A.sub.control] represents the absorbance of ABTS
without the sample.
AOP of food samples is usually evaluated by more than one method, and correlation analysis of AOPs obtained by DPPH, ABTS
, and FC assays is often performed.
The antioxidant activity of samples was evaluated by the slightly modified 2,2'-azino-bis-(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS
) method .
The antioxidant capacity of grape juice and red wine were determined using the 2,2'-azino-bis (3-ethylbenzothiazoline6-sulphonic acid) (ABTS
) and ferric reducing antioxidant power (FRAP) methods as described by Re et al.
was dissolved in water to a 7 mM concentration.