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Activity-guided isolation of antioxidants from the roots of Rheum emodi
Pradeep Pratap Singh1, Ambika, S M S Chauhan
1Bio-Organic Laboratory, Department of Chemistry, University of Delhi, Delhi 110007, India.
Natural Product Research
|May 10, 2012
Abstract:
An activity-guided isolation and purification process was used to identify the DPPH free radical scavenging components of Rheum emodi. The activity-guided isolation revealed that eugenol, gallic acid, quercetin, rutin, epicatechin, desoxyrhapontigenin, rhapontigenin and mesopsin are the major phenolic compounds responsible for the antioxidant activity of the roots of R. emodi.