ANTIOXIDANT ACTIVITY OF THE EXTRACT OF CHICKWEED (STELLARIA MEDIA)
Abstract
The paper presents new data on the chemical composition of the chickweed (Stellaria media), which grows in the Republic of Buryatia. Chickweed is a promising raw material because of its vitamins, flavonoids and trace elements, but the potential of this plant has not been studied enough. The aim of the work was studying the content of biologically active substances with antioxidant properties in the extract of chickweed, collected in the Zabaikal's region, and establish its antioxidant effect on lipid peroxidation. As a result of the studies, a high content of carbohydrates in leaves (3.04%), stems (3.41%) and roots (4.52%) of Stellaria media was established. The content of substances of protein nature was from 2.25% to 2.94%, mineral substances – from 1.42% to 1.74%. A higher content of flavonoids in the stems and leaves of the Stellaria media was found to be approximately twice as large as their content in the root system.
The quantitatively and quantitatively content of organic acids (formic, malic, citric, acetic, succinic, oxalic, benzoic, fumaric), vitamins and provitamins (riboflavin, pantothenic acid, folic acid, ascorbic acid, tocopherol, beta-carotene) have been identified in the extract from Stellaria media. The total antioxidant activity of the extracts was established. The highest total content of antioxidants is in an aqueous extract of the leaves, which contributes to the inhibition of processes of animal fats due to the presence of biologically active substances with powerful antioxidant properties.
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