PHYTOCHEMICAL FEATURES OF REPRESENTATIVES OF THE GENUS Cotoneaster Medik

Dhurenko N. I., Palamarchuk O. P., Chetvernya S. A., Grevtsova G. T., Mikhailova I. S.

BIOLOGY

Scentific article

The article has analyzed the data of the chemical study of metabolites in different organs of species and varieties of the genus Cotoneaster Medic. of the growing season in the conditions of introduction with the prospect of forming the possibilities for their further use in medicine and pharmacy. Genus Cotoneaster includes about a hundred species that are distributed throughout Eurasia; more than 40 species аrе growing on the territory of the former USSR. In the flora of Ukraine there are two species, the prevalent number of which is found in the Carpathians and Crimea. In the collections of the Botanical gardens and Dendroparks of Ukraine more than 37 taxa are cultivated, which in the majority are grown as decorative culture. In Ukraine, the potential of these original plants is far from exhausted. There is a need to expand the possibilities of implementation and rational using of plant raw materials of Cotoneaster to create therapeutic and preventive phyto-drugs. The specificity of the accumulation of polyphenolic, polysaccharide, and vitamin compounds in various plant organs has been analyzed. A clear trend has been observed in the accumulation of catechins in leaves and shoots of the investigated species and cotoneaster varieties, the maximum number of which varies significantly: in shoots from 3794.00 mg% (C. lindleyi) to 8400.00 mg% (C. subacutus), in leaves – from 3794.40 mg% (C. lindleyi) to 8040.00 mg% (variety C. salicifolius Franch “Herbstfeuer”). A special pattern is also observed in the presence of leucoanthocyanins, the quantitative indices of which predominate in shoots of the species C. subacutus (9460.00 mg%) and in leaves – C. salicifolius (8003.60 mg%). There is a significant difference between the species studied and the varieties of cotoneasterers and the content of anthocyanins, the number of which predominates in the fruit and varies in plants from 52.00 mg% (C. salicifolius) to 480.00 mg% (C. lindleyi). The maximum level (8.30%) of the tannin content was noted in leaves of the C.salicifolius species, which, like shoots, also accumulate a sufficient number (12.80% and 10.30%) of polysaccharides. High rates of vitamins accumulation are characteristic for all organs of the studied plants, whereas the presence of carotenoids (6.70 mg%) is noted in fruits of the C. lindleyi type. It should be noted plants C. salicifolius Franch “Herbstfeuer” genus – the most promising batteries of biologically active substances (BAS). Phytochemical screening of representatives of the genus Cotoneaster testifies to their ability to synthesize and accumulate a complex of balanced physiologically active metabolites under the conditions of introduction during the vegetative period, which determines the polyfunctionality of the medicinal properties of the identified prospective raw material – a potential source of phyto-drugs for therapeutic and prophylactic purposes.

cotoneaster lindleyi Steud, C. subacutus Pojark, C. marginatus Lindl, C. salicifolius Franch and varieties of C. salicifolius “Repens” and «Herbstfeuer», polyphenolic, polysaccharide, and vitamin compounds.

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«Bulletin of problems biology and medicine» Issue 4 Part 3 (141), 2017 year, 73-78 pages, index UDK 634.7:581.19

10.29254/2077–4214–2017–4–3–141–73-78