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Effect of Carthamus tinctorius L. seed extract (CSE) on fluorescein decay induced by AAPH. (A) Decay curve of fluorescence in the presence or absence of samples, CSE 0.1 mg/mL (▼), Trolox 1.25 μM TE/g (◯), and Blank (●). (B) Radical scavenging activity of CSE was expressed as a value relative to blank. Each bar indicates the mean ± S.D. in triplicate. The decay curve was determined by fluorescein fluorescence intensity (excitation at 493 nm, emission at 515 nm).
