RADICAL SCAVENGING POTENTIAL OF CLEOME VISCOSA L. AND CLEOME BURMANNI W. & A. (CLEOMACEAE)Abstract
The present study evaluates the reactive oxygen species (ROS) scavenging and in vitro antioxidant activities of two species of Cleome, C. viscosa and C. burmanni. The antioxidant potential of the methanol extracts of species of Cleome was tested using different assays such as FRAP, DPPH, ABTS, hydroxyl, superoxide, nitric oxide, and hydrogen peroxide. The extracts gave positive results for all the assays and the radical scavenging ability was detected to be comparable to those of the corresponding standards. Quantitative estimation of antioxidant phytochemicals, such as phenols, flavonoids and proanthocyanidins were also done in both species of Cleome. The results revealed that the phytochemicals content was greater in C. viscosa when compared to C. burmanni.
Lakshmi S. Pillai* and Bindu R. Nair
Department of Botany, University of Kerala, Kariavattom, Thiruvananthapuram- 695 581, Kerala, India
12 October, 2012
18 November, 2012
26 January, 2013
01 February, 2013