DOI: 10.18413/2658-6533-2019-5-3-0-7

Determination of the antioxidant activity of the infusion of common sorrel herba in vitro

Background: Common sorrel (Rumex acetosa L.), a plant from the buckwheat family, is promising for introduction into medicine. Phytochemical studies of common sorrel herba showed that the raw material contains a complex of biologically active compounds (BAC), including phenolic compounds (phenolic acids, flavonoids, hydrolysable and condensed tannins), organic acids (succinic, oxalic, citric, tartaric) and ascorbic acid. From literature data it is known that many polyphenolic compounds and organic acids are antioxidants. In this regard, we can assume the presence of antioxidant activity in common sorrel herba. The aim of the study: To determine in vitro the presence of the antioxidant activity of infusion of common sorrel herba. Materials and methods: The object of the study is common sorrel herba harvested in the Altai Territory in 2016-2018. We prepared infusion in the ratio of "raw materials – extractant" 1:10. The antioxidant activity of the infusion of common sorrel herba was evaluated by an in vitro screening method based on the ability of bioactive compounds (BAC) to inhibit a superoxide radical in the adrenaline autooxidation reaction in an alkaline medium. Results: It was established that an infusion from the common sorrel herba shows the maximum antioxidant activity in 3,5 minutes – 28.3% and minimum in 8,5 minutes – 2.38%. The antioxidant activity was replaced by prooxidant activity for 9 minutes. Conclusion: The results of the in vitro screening study showed the presence of the antioxidant activity of the infusion of common sorrel herba. The data indicate the possibility of further studies and the prospects for the use of sorrel sour grass as a source of BAC with antioxidant activity.

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