STUDY OF THE CONTENT OF POLYPHENOLIC COMPOUNDS IN PLANTS OF THE SYNANTHROPIC FLORA OF THE KIROV REGION
UDC 54.062, 57.045
Abstract
The results of determining the content of polyphenols, including flavonoids, and the amount of antioxidants in samples of wild medicinal and potentially medicinal plants in the southern taiga subzone of the Kirov region are presented. Plant samples were collected during the period of mass flowering in places of natural growth in various areas of the Kirov region in July 2023. The relevance and practical significance of the study is determined by the fact that, in addition to pharmacopoeial ones, parts of plants that are not medicinal plant raw materials, but potentially being such, are of interest for research, were studied. In addition, there are practically no places of growth that are not subject to anthropogenic influence, in particular the influence of transport routes and the proximity of populated areas. Therefore, studying the content of biologically active substances in plants grown in such areas is a relevant and practically significant task. The objects of research were: leaves and flowers of tansy, flowers and leaves of meadowsweet, plantain leaves, horsetail, yarrow flowers, valerian leaves, St. John's wort flowers, common oak leaves, birch leaves, Scots pine needles. In terms of the content of polyphenols in general, samples of St. John's wort flowers (from 46±11 to 54±14 mg/g), flowers and leaves of meadowsweet (from 55±14 to 87±22 mg/g), and tansy leaves (from 25.1±1.8 to 64±16 mg/g). High, compared to others, the content of flavonoids (from 16.4±1.5 to 59.8±0.5 mg/g) and the amount of antioxidants (from 39.0±2.0 to 41.2±1.2 mg/g) was found in samples of meadowsweet. The values of the obtained results are consistent with the literature data on the possible content of determined biologically active substances in plant samples. Information on the content of biologically active substances can be used to recommend individual plant species as sources of beneficial substances.
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