Figure 4From: Adaptogenic and nootropic activities of aqueous extract of Vitis vinifera (grape seed): an experimental study in rat model Hydroxyl radical scavenging activity of Vitis vinifera in in-vitro systems. Graphical representation of the concentration of Vitis vinifera required to inhibit 50 percent of hydroxyl radicals. Each point represents the mean percentage inhibition of six experiments.Back to article page