Abstract
The antioxidant activity of root extracts and seeds of Glycyrrhiza glabra L. was studied using a physi-cochemical method using a spectrophotometer; preparation “licorice extract “Glycirfite”, containing a group of flavonoid compounds, saponins, terpenoids, resins; Sophora japonica L. fruit extract con-taining 8 flavonoids, rutin, kaempferol-3-sophoroside, quercetin-3-rutinoside and genistein-4-sophorabioside, Juglans regia L. pericarp extract containing phenolic acids, ascorbic acid flavonoids (up to 3%) , tannins. Antioxidant activity was assessed using a method based on the DPPH inhibition reaction. The control drugs were a 5% aqueous-salt solution of ascorbic acid (50 mg/ml) and a 10% solution of α-tocopherol acetate (vitamin E) in oil. The greatest antioxidant activity was demonstrated by extracts of the fruits of Glycyrrhiza glabra, the fruits of Sophora japonica and the drug “GLYCIRFITE”, which, in our opinion, contained the largest amount of antioxidant components. A high degree of inhibition of free radical processes was demonstrated by an aqueous extract of licorice root and an extract of the pericarp Juglans regia. Studies have shown low AOA of ascorbic acid and vitamin E drug solutions in this experiment.
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