Features of accumulation of heavy metals and arsenic in medicinal plant raw materials of dandelion of medicinal collected in urband agrobiocenoses of Voronezh region

Author(s):  
N.A. Dyakova
2020 ◽  
Vol 24 (7) ◽  
pp. 37-41
Author(s):  
G.G. Buskunova ◽  
R.F. Khasanova ◽  
I.N. Semenova ◽  
G.R. Ilbulova

The features of the accumulation of heavy metals in medicinal plant raw materials Tanacetum vulgare L. in the conditions of the Trans-Urals region of the Republic of Bashkortostan are discussed. The variation-statistical indices of the content of heavy metals in soils and in plants are calculated. Soils and plants have high coefficients of heavy metals variation, with the exception of manganese in the soil, which is characterized by moderate variability. An increased level of heavy metals mobile forms, such as Cu, Zn, Mn, Fe, Pb, Cd, has been detected in all soil samples. All selected samples had an elevated level of mobile forms. According to the degree of contamination, the studied soils were classified as permissible. In tansy plants, the concentration of trace elements-biophiles exceeded the norm in Fe 1.7–6.24, in Cd 1.3–1.7 times, and the concentrations of Cu, Zn, Mn, Pb in the aboveground and underground parts of the species remained within the normal range. It is revealed that the root system of Tanacetum vulgare L. contains higher values of the studied elements than the aerial parts. According to the intensity of absorption, the elements are arranged in the following sequence: Zn → Cd → Cu → Fe → Mn → Pb. According to the coefficient of biological accumulation in tansy, ordinary zinc and iron belong to the elements of weak accumulation, copper, manganese, lead, cadmium –to the elements of weak capture.


2020 ◽  
Vol 28 (3) ◽  
pp. 213-224
Author(s):  
Nina A. Dyakova

The Voronezh region is traditionally the most important area of crop production and farming. The purpose of the study was to study contamination by heavy metals and arsenic of medicinal vegetable raw materials of the Voronezh region on the example of plain thousand-year-old grass collected in urban and agro-ecological systems with different anthropogenic effects. The study was carried out by atomic absorption spectrometry on the basis of atomic absorption spectrometer MGA-915MD pharmacopoeia methods, accumulation of heavy metals (lead, mercury, cadmium, nickel, copper, zinc, cobalt, chromium) and arsenic was studied in 51 samples of large planter leaves. Comparing the data on heavy metal content in the upper soil layers of the region and the content of these elements in the grass of the common thousand, it can be argued that there are significant physiological barriers to the accumulation of ecotoxicants in the plant, which is particularly noticeable for elements such as lead, mercury, arsenic, cadmium, cobalt and chromium. The thousand-year-old is able to selectively concentrate some heavy metals entering the active centers of enzyme systems (such as copper and zinc, for example) if their environmental content is below some vital level; With significant content of these elements in soils, the plant also physiologically blocked their entry into the above-ground part of the plant. The results of studies have shown that plain thousand grass is able to accumulate toxic elements from soils in a significant amount, which is important in planning the places of production of medicinal vegetable raw materials and assessing its quality.


Author(s):  
Nina A. Dyakova ◽  

The Voronezh region is traditionally the most important area of crop production and agriculture. The purpose of the research was to study the contamination with heavy metals of medicinal plant raw materials of the Voronezh region using the example of the roots of ordinary burdock, prepared in urbo- and agro-ecosystems, which have various anthropogenic effects on themselves. The accumulation of heavy metals (lead, mercury, cadmium, nickel, copper, zinc, cobalt, chromium) and arsenic in 51 samples of raw materials was studied. By comparing the heavy metal content in the upper soil layers of the region and the content of these elements in the roots of the bladder, it can be assumed that there are significant physiological barriers to the accumulation of ecotoxicants in the roots of the bladder, which is especially noticeable for elements such as lead, mercury, arsenic, cadmium, cobalt and chromium. At the same time, this type of medicinal vegetal raw material is able to selectively concentrate some heavy metals included in the active centers of enzyme systems (copper and zinc). Thus, for an ordinary bladder under conditions of anthropogenic load, an edaphotype is formed, which is as a result of selection in conditions of anthropogenic pollution of the external environment and the manifestation of adaptation to these conditions.


2021 ◽  
Vol 54 (2) ◽  
pp. 48-56
Author(s):  
Nina Alekseevna Dyakova

Annotation. The Voronezh region is traditionally the most important area of crop production and farming. The purpose of the study was to study the contamination by heavy metals of medicinal vegetable raw materials of the Voronezh region on the example of the grass of the five-plant desert collected in urban and agro-ecological systems, which experience different anthropogenic effects. The accumulations of heavy metals (lead, mercury, cadmium, nickel, copper, zinc, cobalt, chromium) and arsenic were studied, in 51 samples of five-layer desert grass. Comparing the data on heavy metal content in the upper soil layers of the region and the content of these elements in the grass of the five-layer desert, it can be assumed that there are significant physiological barriers to the accumulation of ecotoxicants in the generative organs of the plant, which is particularly noticeable for elements such as lead, mercury, arsenic, cadmium, cobalt and chromium. The five-point desert is able to selectively concentrate some heavy metals entering the active centers of enzyme systems (such as copper and zinc) if their environmental content is below some vital level; With a significant content of these elements in soils, the plant also physiologically blocked their entry into the leaves. Thus, for a five-layer desert under anthropogenic load conditions, an edaphotype is formed as a result of the action of selection under conditions of man-made pollution of the external environment and the manifestation of adaptation to these conditions. The results of studies have shown that the grass of the five-plant desert is able to accumulate toxic elements from soils, which is important in planning the places of production of medicinal vegetable raw materials and assessing its quality.


2018 ◽  
Vol 52 (3) ◽  
pp. 220-223 ◽  
Author(s):  
N. A. D’yakova ◽  
I. A. Samylina ◽  
A. I. Slivkin ◽  
S. P. Gaponov ◽  
A. A. Myndra

2021 ◽  
pp. 87-90
Author(s):  
М.Ж. Кизатова ◽  
Д.А. Абдуллаева

Статья посвящена важности пектиновых веществ, а также расширению сферы использования лекарственного растительного сырья. В качестве лекарственного растительного сырья представлены технологии получения пектинового экстракта из плодов шиповника, которые встречаются на территории Казахстана 25 видов. Применение пектина в медицине. The article is devoted to the importance of pectin substances, as well as to the expansion of the use of medicinal plant raw materials. As a medicinal plant raw material, technologies for obtaining pectin extract from rosehip fruits, which are found in 25 species on the territory of Kazakhstan, are presented. The use of pectin in medicine


2021 ◽  
pp. 13-18
Author(s):  
М.А. Сенченко ◽  
М.В. Степанова

В России при производстве национальных напитков и продуктов питания используют сырьё растительного происхождения. Многие участки для возделываемых культур расположены вблизи урбанизированных районов, нефтеперерабатывающих и машиностроительных заводов. Исследования посвящены определению тяжёлых металлов в почвах урбанизированных и сельских районов Ярославской области и проведены в 2019–2020 гг. Целью данного исследования является определение содержания некоторых микроэлементов и тяжёлых металлов в почве, ревене и продукте его переработки – квасе, произведённом разными способами (рассматривались 2 технологии: технология с дополнительной операцией «вымачивание стеблей ревеня» и «настаивание стеблей ревеня и дополнительных ингредиентов» и технология с дополнительной операцией «варка стеблей ревеня и дополнительных ингредиентов»). При исследовании загрязнения почвы микроэлементами и тяжёлыми металлами на всех территориях превышения предельно допустимых концентраций не выявлено. Установлено, что по величине среднего содержания в водной вытяжке почвы исследуемые элементы на всех рассмотренных территориях региона образуют следующий убывающий ряд: железо > свинец > цинк > медь > мышьяк > кадмий. Более высокие концентрации цинка, железа, кадмия, свинца и мышьяка выявлены в урбанизированной территории, а меди – в сельской территории. Анализ миграционной способности элементов в системе «почва – растение – продукция растительного происхождения» показал наличие плохой миграционной способности для цинка и железа. Использование растительного сырья, произведённого по технологии органического производства и по разработанной технологии переработки растительного сырья, способствовало наименьшему воздействию на его составные части, увеличению содержания макро- и микроэлементов. При этом содержание токсичных элементов остаётся в пределах действующих нормативных документов. Технология, включающая дополнительную операцию «варка», обеспечила наибольшую экстракцию макро- и микроэлементов из ревеня в квас. In Russia, raw materials of plant origin are used in the production of national beverages and food products. Many areas for cultivated crops are located near urbanized areas, oil refineries and mechanical engineering plants. Researches are devoted to the definition of heavy metals in soils of urbanized and rural areas of the Yaroslavl region and were carried out in 2019–2020. The purpose of this study is to determine the content of some microelements and heavy metals in soil, rhubarb and its processing product – kvass produced in various ways (2 technologies were considered: technology with an additional operation "soaking rhubarb stems" and "infusing rhubarb stems and additional ingredients" and technology with an additional operation "boiling rhubarb stems and additional ingredients"). When investigating soil contamination with microelements and heavy metals in all territories, no excess of maximum permissible concentrations was found. It was established that in terms of the average content in the water extract of the soil, the examined elements in all the considered territories of the region form the following decreasing series: iron > lead > zinc > copper > arsenic > cadmium. Higher concentrations of zinc, iron, cadmium, lead and arsenic were found in urbanized territory, and copper in rural territory. An analysis of the migration ability of elements in the system "soil – plant – product of plant processing" showed the presence of poor migration ability for zinc and iron. The use of plant raw materials produced according to the organic production technology and the developed technology for processing plant raw materials contributed to the least impact on its components, an increase in the content of macro- and microelements. At the same time, the content of toxic elements remains within the limits of existing regulatory documents. The technology, including an additional "boiling" operation, ensured the greatest extraction of macro- and microelements from rhubarb to kvass.


2019 ◽  
Vol 19 (1-2) ◽  
pp. 13-18
Author(s):  
D. A Zhdanov ◽  
V. B Braslavsky

The article is devoted to the development of new and perspective for the State Pharmacopoeia of the Russian Federation (SP RF) techniques for determining of the moisture (loss on drying) of medicinal plant raw materials of the morphological group “Fruit” and medicinal plant preparations by the use of infrared thermogravimetric (IRTGM) method. The techniques for determination of moisture (loss on drying) IRTGM-method as exemplified by the fruit of the following medicinal plants: Silybum marianum (L.) Gaertn., Rosa cinnamomea L. and Anethum graveolens L. were developed. The comparable results for determining of the moisture (loss on drying) of the medicinal plant raw materials of investigated plants were obtained by means of two methods: IRTGM and pharmacopoeial method, which allow us to recommend the developed techniques for inclusion into the relevant monographs of the State Pharmacopoeia of the Russian Federation.


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