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Table 3 DPPH radical scavenging activity of P. quadrifida extracts at different concentrations

From: Determination of antioxidant and antimicrobial activities of the extracts of aerial parts of Portulaca quadrifida

S. no Concentration of extract (mg /L) %DPPH scavenging activity
Methanol Chloroform Petroleum ether
1 20 (w/v) 25.3541 ± 0.0272 23.1373 ± 0.00804 22.8602 ± 0.0020
2 40 (w/v) 30.9421 ± 0.0038 29.4874 ± 0.0100 26.4547 ± 0.0188
3 60 (w/v) 36.8042 ± 0.0056 34.1595 ± 0.0054 30.8344 ± 0.0047
4 80 (w/v) 38.2620 ± 0.0003 37.3599 ± 0.0062 33.0511 ± 0.0039
5 100 (w/v) 46.7595 ± 0.0069 42.4030 ± 0.0053 44.5428 ± 0.0174