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Hydroxyl radical scavenging activity of aqueous, ethyl acetate, and ethanol crude extracts Arnebia benthamii. The results represent mean ± S.D of 3 separate experiments. Results are reported as the percentage of the maximum formation of OH∙ radical (100% deoxyribose oxidized): in absorbency, 100% is 1.270 ± 0.007 (control). Absorbance at 532 nm.
