The antioxidant activity of the aerial parts of Ferula assafoetida was determined by employing various in vitro assay systems. IC50 for DPPH radical-scavenging activity was 380 ± 12 mg ml-1. The extracts showed good nitric oxide-scavenging activity (IC50 was 270 ± 3) and Fe2+ chelating ability (IC50...
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