Peculiarities of macroand microelement accumulation in common yarrow herb of the Voronezh region

Abstract

Researches of elemental composition of wild-growing raw materials are actual and significant because of high efficiency and bioavailability of their metal-organic forms contained in plants. Available data on the content of elements in medicinal plant raw materials of the Voronezh region showed that studies are conducted mainly on a few elements, which does not allow to determine the full chemical composition of plants and to describe the specificity of accumulation of the whole complex of minerals in them. Objective. The aim of the investigation was to study the accumulation of macro- and microelements in common yarrow herb of natural phytocenosis of the Voronezh region. Materials and methods. Preparation of medicinal plant raw materials was carried out during the flowering of the plant in the Voronezh State Natural Biosphere Reserve. The microelement of medicinal plant raw materials was determined by mass spectroscopy with inductively coupled plasma on the ELAN-DRC device. Results. It was found that the content of microelement complex is 3.28%, 59 elements were determined. Macronutrients account for 93.78% of the total elemental composition of common yarrow herb. The basis of macronutrients is potassium (more than 14 mg/g), and calcium (more than 10 mg/g). Essential microelements make up 5.51% of the total mineral complex of the common yarrow herb. Among them the highest content was noted for silicon (more than 1.6 mg/g), iron (more than 0.1 mg/g). The content of the rationed heavy metals and arsenic in the herb common yarrow corresponds to the requirements of the normative documentation. The proportion of toxic and understudied elements in the total mineral complex of common yarrow herb is 0.71%. The highest content was noted for aluminum (116.5 µg/g), strontium (81.6 µg/g), titanium (12.5 µg/g), rubidium (9.5 µg/g), barium (9.31 µg/g). The high ability of common yarrow herb to accumulate phosphorus, potassium, copper, zinc, molybdenum, strontium from soil was shown. Conclusion. The data obtained are of great interest and can serve as a basis for further research with the aim of using their results in medical and pharmaceutical practice to create drugs and biologically active additives for correcting physiological norms of element content in the human body.