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Antioxidant activity of Oenothera laciniata methanol extract. (A) Total polyphenol and flavonoid contents. (B) Electron-donating ability. (C) ABTS radical-scavenging ability. (D) SOD-like activity. BHT: 2,6-di-tert-butylate hydroxytoluene, OLME: Oenothera laciniata methanol extract. Values are the mean ± SD of three independent experiments.
