Table 6 Percentage of radical scavenging capacity (RSC%) of DPPH by different extracts of in vivo and in vitro Echinacea plants as well as callus extracts at different times
From: Active compounds and biological activity of in vitro cultures of some Echinacea purpurea varieties
Echinacea extracts | Antioxidant activity % | |||
|---|---|---|---|---|
15Â min | 30Â min | 45Â min | 60Â min | |
In vivo plants | ||||
 Double Decker | 36.6 | 62.5 | 76.5 | 79.1 |
 Rubinstern | 34.5 | 65.7 | 75.7 | 78.9 |
In vitro plants | ||||
 Double Decker | 43.2 | 79.1 | 92.8 | 90.4 |
 Rubinstern | 47.0 | 70.5 | 79.3 | 77.9 |
Callus | ||||
 Double Decker | 67.7 | 76.9 | 86.3 | 86.9 |
 Rubinstern | 67.1 | 65.1 | 76.9 | 89.2 |