Antioxidant Potential of Psoralea corylifolia and Psoralea esculenta seeds: Comparative Study
The Psoralea corylifolia L. & Psoralea esculenta seeds are traditionally used herbal medicine, but its comparative antioxidant activity has not been studied. The methanolic crude extracts of Psoralea corylifolia & Psoralea esculenta seeds were screened for their free radical scavenging properties using ascorbic acid as standard antioxidant. Free radical scavenging activity was evaluated using 1,1-diphenyl-2-picryl hydrazyl (DPPH) free radical. The overall antioxidant activity of Psoralea corylifolia was found to be the strongest. The IC50 values of the extracts found 0.14 ± 0 & 0.05 ± 0 mg/l respectively. The ascorbic acid levels found19.3 ± 0.10 &11.7 ± 0.49 mg/100g andthe carotenoids content were observed 28.65 ± 0.24 &16.82 ± 1.16 mg/100g in plant extracts. The highest total phenols content were found to be in Psoralea corylifolia with the value 31.2 ± 0.24 mg/g.The present study reveals that the selected plants would exert several beneficial effects by virtue of their antioxidant activity and may be taken for drug formulation.
Keywords: 1,1-diphenyl-2-picryl hydrazyl, antioxidant, phenol, radical scavenger.
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