Quercetin

Supercritical Fluid Extraction of Quercetin from Onion Skins

Quercetin

Quercetin is a uniquitous phytochemical and a major flavonoid consumed in the human diet. It is also a part of the active principles of several medicinal plants and is used as a supplement for the treatment of several diseases. The authors' of this book discuss the latest advances in quercetin research, its antioxidant properties as well as health benefits.

Mood and Vigilance Following Quercetin Supplementation

There is a high degree of military interest in the effects of specific nutritional constituents on cognitive function. This double-blind, placebo-controlled study was undertaken to test whether quercetin aglycone affects mood and vigilance in humans. Block randomization was used to assign 57 Department of Defense personnel into three groups. Based on group assignment, each subject received a one-time dose of 200 mg caffeine plus 1,800 mg placebo, 2,000 mg quercetin or 2,000 mg placebo 1 hour...