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Oxidation of biomolecules such as carbohydrates, proteins, lipids, and nucleic acids results in generation of free radicals in an organism which is the major cause of onset of various degenerative diseases. Antioxidants scavenge these free radicals, thereby protecting the cell from damage. The present study was designed to examine the free radical scavenging potential and oxidative DNA damage preventive activity of traditionally used spices  Trachyspermum ammi  L. (carom) and  Foeniculum vulgare  Mill. (fennel). The aqueous, methanolic, and acetonic extracts of  T. ammi  and  F. vulgare  seeds were prepared using soxhlet extraction assembly and subjected to qualitative and quantitative estimation of phytochemical constituents. Free radical scavenging potential was investigated using standard methods, namely, DPPH radical scavenging assay and ferric reducing antioxidant power assay along with the protection against oxidative DNA damage. The results stated that acetonic seed extracts (AAcSE and FAcSE) of both the spices possessed comparatively high amount of total phenolics whereas methanolic seed extracts (AMSE and FMSE) were found to have highest amount of total flavonoids. At 1 mg/mL concentration, highest DPPH radical scavenging activity was shown by FMSE (96.2%), AAcSE was recorded with highest FRAP value (2270.27 ± 0.005  μ mol/L), and all the seed extracts have been shown to mitigate the damage induced by Fenton reaction on calf thymus DNA. Therefore, the study suggests that  T. ammi  and  F. vulgare  seed extracts could contribute as a highly significant bioresource of antioxidants to be used in our day-to-day life and in food and pharmaceutical industry.

biomed research international

Assessment of Free Radical Scavenging Potential and Oxidative DNA Damage Preventive Activity of<i>Trachyspermum ammi</i>L. (Carom) and<i>Foeniculum vulgare</i>Mill. (Fennel) Seed Extracts

Assessment of Free Radical Scavenging Potential and Oxidative DNA Damage Preventive Activity ofTrachyspermum ammiL. (Carom) andFoeniculum vulgareMill. (Fennel) Seed Extracts