BIOGEOCHEMICAL CHARACTERISTICS OF MACRO- AND MICROELEMENTS ON EXTRACTS FROM LEONURUS QUINQUELOBATUS HERB

Abstract

The article presents the results of the study of the features of quantitative transition of chemical elements (CE) in decoctions and tinctures. Leonurus quinquelobatus Gilib. plants were grown in the regions of the southeast of Western Siberia. Absolute content of CE in aqueous extracts is higher than in aqueous-alcoholic extracts. No relationship between their gross content in raw material and concentration in extracts was found. Dusted plants are characterized by higher ash content and content of ash residue insoluble in 10% HCl. The CE extraction coefficient from these samples is lower regardless of the extragent. In plants from different regions, the extraction ratio may differ either slightly or several times. It varies markedly even within a single site. The macronutrients K, Mg and Ca are extracted in the highest amounts. Standardized in medicinal plant raw materials Pb and Cd are extracted in minimal amounts. Extracts from the herb L. quinquelobatus can be considered safe for the content of potentially toxic Pb and Cd and use as an additional source of macronutrients.