| Abstrakt: |
The content of phenolic compounds (flavonols, flavans (catechins), tannins), polysaccharides (pectins, protopectins), and tetraterpenes (carotenoids), as well as the antioxidant activity of Cichorium intybus L., Taraxacum officinale Wigg., Arnica iljinii (Maguire) Iljin., and Echinops sphaerocephalus L. cultivated in conditions of Western Siberia were studied. A significant part of the biologically active substances is represented by tannins (up 28.25%) and protopectins (up 11.11%). The content of flavonoids in the studied samples of C. intybus plants agree with the values of this indicator for the chicory herb from other regions of the Russian Federation, including its commercial growing regions. The inflorescences and leaves of the studied samples of T. officinale are characterized by approximately identical contents of flavonols (1.02–1.43%), pectins (0.80–1.08%), and protopectins (7.94–8.87%). The leaves and inflorescences of A. iljinii are distinguished by fairly high contents of flavonols (up to 4.23%) and tannins (up to 28.25%). The leaves of E. sphaerocephalus are significantly superior to the inflorescences in terms of the content of tannins (8.34%), catechins (36.3 mg%), protopectins (10.06%), and carotenoids (64.60 mg%); flavonols are present in equal proportions in the leaves (0.68%) and inflorescences (0.64%). The indicators of the total content of phenolic antioxidants in the leaves and inflorescences of C. intybus, T. officinale, A. iljinii, and E. sphaerocephalus do not differ significantly. [ABSTRACT FROM AUTHOR] |
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