CHEMICAL COMPOSITION OF GERANIUM WLASSOVIANUM (GERANIACEAE)

Abstract

The article presents the results of experimental findings concerning the study of the chemical composition of above-ground and underground parts of Geranium wlassovianum. The amount of number of tannins into the plant matter gathered during the blooming period is 19.45±0.04% in the root system and 20.93±0.03% in the above-ground part of a plant. Tannins are referred to phenolic compounds. For qualitative determination of peculiar phenolic compounds the HELC (high-efficiency liquid chromatography) method was used. This method allowed to determine 21 compounds from the aqueous extract of the above-ground parts and 11 compounds from the aqueous extract of the underground parts of the Geranium wlassovianum. 8 compounds were found both in the shoot system and in the root one, 13 substances are contained only in the grass, 3 substances were found only in the underground plant parts. During the study, the elemental composition of a plant was identified, as a result 22 chemical elements were found out. For 6 elements the root barrier index is lower than one that points at barrier-free transition of elements from a root system to an above-ground parts of a plant. The rest 16 elements meet the barrier during transition (in the range from 1 to 10), that is the concentration of these 16 elements is higher in the underground part than in the grass part. The variety of the chemical composition and quantitative content of the chemical elements in the plant matter of the species that is under the research depend on different natural factors.