文摘
Total phenolic contents, condensed tannin content, antioxidant activity and DNA damage protection of twelve pearl millet cultivars from North Indian region were assayed. All pearl millet cultivars showed considerable amount of bioactive compounds with antioxidant potential. PUSA-415 showed the presence of maximum amount of extractable total phenolic content (7.32 mg GAE/g DWB), whereas HHB-223 cultivar depicted the highest amount of condensed tannin contents (138.45 mg CE/100 g DWB). Antioxidant activity was measured using different methods viz., DPPH, ABTS, FRAP, TAC and HFRSA. A clear correlation was observed between total phenolic content and antioxidant activity of different pearl millet cultivars. The extracts of all cultivars prevented the oxidative damage to plasmid DNA (pBR322) against DNA damaging Fenton’s reagent. However, cultivars PC-383, PUSA-415, PUSA-605, PC-612 and 841-B showed prominent DNA damage protection activity. The results of this study provide a scientific basis of the traditional use of pearl millet as a natural antioxidant mitigating DNA damage.