scholarly journals STANDARDIZATION PROBLEMS OF MEDICINAL PREPARATIONS FROM RHODIOLA ROSEA L.

2021 ◽  
Vol 9 (3) ◽  
pp. 185-194
Author(s):  
V. A. Kurkin ◽  
T. K. Ryazanova

Rhodiola rosea L. rhizomes and roots are pharmacopoeial raw materials, which are used in official medicine for obtaining medicines with adaptogenic activity. One of the most common problems in the production of medicines from Rhodiola rosea L. rhizomes and roots is the use of poor quality medicinal plant materials, which leads to the absence of biologically significant compounds in the preparations. One of the possible reasons is the shortcomings in the existing approaches to the standardization of Rhodiola rosea L. raw materials and preparations.The aim of the study is the improvement of approaches to the standardization of medicinal preparations from Rhodiola rosea L. rhizomes and roots.Materials and methods. Experimental and industrial samples of liquid extract from Rhodiola rosea L. roots, as well as reference samples of rosavin and salidroside, were used as materials of the research. The HPLC analysis was carried out using a Milichrom-6 chromatograph (NPAO Nauchpribor) under the following conditions of reversed-phase chromatography in an isocratic mode: a steel column KAKH-6-80-4 (2 mm x 80 mm; Separon-C18 7 μm), a mobile phase – acetonitrile: 1% solution of acetic acid in water in the ratio of 14:86, the elution rate was 100 μL/min, the eluent volume was 2000 μL. The constituents were detected at the wavelength of 252 nm (rosavin) and 278 nm (salidroside).Results. An assay of rosavin and salidroside in the liquid extract of Rhodiola rosea L. was developed using the HPLC method. It was determined that the content of rosavin in the samples of the liquid extracts obtained from Rhodiola rosea L. rhizomes and roots of the pharmacopoeial quality, varied from 0.21%±0.03% to 0.32%±0.04%, salidroside – from 1.13% ±0.05% to 2.71%±0.12%, respectively. The results of statistical processing indicate that the relative error of the average result for the determination of rosavin and salidroside in the preparations of Rhodiola rosea L. with a confidence level of 95% does not exceed ±6.0%.Conclusion. Thus, methodological approaches to the analysis of medicinal preparations from Rhodiola rosea L. rhizomes and roots have been substantiated. These methodological approaches consist of the quantitative determination of the dominant and diagnostically significant biologically active compounds – rosavin and salidroside.

Author(s):  
V.V. Velichko ◽  
◽  
D.S. Kruglov ◽  

Carotenoids are of interest as precursors of vitamin A, which has a wide range of pharmacological effects — antioxidant, immunomodulatory, participating in photoreception, etc. The aim of the research was to develop a technique for the spectrophotometric determination of the A-vitamin activity of carotenoids-rich medicinal plant raw materials (MPRM). The objects of research were the traditional sources of carotenoids — sea buckthorn, carrot, pumpkin and wild rose. A method is proposed for determining the content of individual carotenoids in MPRM by optical density at wavelengths corresponding to the characteristic peaks of α-carotene, β-carotene and lycopene. It has been shown that it is preferable to use isopropyl alcohol as the most effective solvent. Taking into account the content of specific carotenoids makes it possible to determine the A-vitamin activity of the sum of carotenoids extracted from plant materials, and, accordingly, to increase the efficiency of the use of herbal preparations and biologically active additives for health improvement.


Author(s):  
N.V. Alpatova ◽  
◽  
I.A. Dubrovskaya ◽  
M.V. Slobodyanik ◽  
◽  
...  

Flavonoids are an important component of plant materials; they have medicinal and biologically active properties. To use them as medicines, it is necessary to determine their qualitative and quantitative composition. The aim of this work is a comparative analysis of the identification and metrological characteristics of methods for the determination of flavonoids in plant raw materials and products of their processing. The paper presents a brief literature review of the main methods for the study of flavonoids. Certified and advanced techniques, such as NMR and mass spectrometry, have been discussed.


Author(s):  
Grażyna Kowalska

The presented study was aimed at the determination of the level of contamination with heavy metals (Cd, Pb, As, and Hg) in 240 samples of plant materials, i.e., herbal raw materials, spices, tea, and coffee. Moreover, a probabilistic risk assessment (noncarcinogenic and carcinogenic risks) was estimated by models including target hazard quotient (THQ) and cancer risk (CR). The samples were subjected to microwave mineralisation with the use of HNO3 (65%), while the determination of the content of the elements was performed with the use of inductively coupled plasma mass spectrometer (ICP–MS) and a mercury analyser. The element which was characterised by the highest level of accumulation in the analysed samples was lead (from 0.010 to 5.680 mg/kg). Among the heavy metals under analysis, the lowest concentration was noted in the case of mercury (from 0.005 to 0.030 mg/kg). A notably higher level of contamination with heavy metals was noted in the analysed samples of herbs and spices (0.005–5.680 mg/kg), compared to samples of tea and coffee (0.005–0.791 mg/kg). According to the guidelines of the World Health Organisation (WHO) concerning the limits of contamination of samples of herbal raw materials with heavy metals, lead levels exceeding the limits were only noted in 24 samples of herbs (18%). In all of the analysed samples of spices, tea, and coffee, no instances of exceeded limits were noted for any of the analysed heavy metals. The values of TTHQmax (in relation to the consumption of the analysed products) were as follows: up to 4.23 × 10−2 for spices, up to 2.51 × 10−1 for herbs, up to 4.03 × 10−2 for China tea, and up to 1.25 × 10−1 for roasted coffee beans. As the value of THQ ≤1, there is no probability of the appearance of undesirable effects related to the consumption of the analysed group of raw materials and products of plant origin. The CR value for As (max. value) was 1.29 × 10−5, which is lower than the maximum acceptable level of 1 × 10−4 suggested by United States Environmental Protection Agency (USEPA).


2020 ◽  
Vol 169 ◽  
pp. 02006
Author(s):  
Gennady Kalabin ◽  
Vasilii Vasil’ev ◽  
Vasilii Ivlev ◽  
Vasilii Babkin

Environmental monitoring and assessment of the prospects for extracting biologically active substances (BAS) from various types of plant biomass requires the development of simple and fast methods for measuring their content in raw materials. A new approach for measuring the content of various flavonoids groups in plant raw material using 1H NMR spectroscopy has been developed, which allows to characterize its resource capabilities and study the effects on their composition different environmental factors without complex sample preparation and standard samples.


2020 ◽  
Vol 175 ◽  
pp. 08004 ◽  
Author(s):  
Andrey Alexeev ◽  
Tatyana Alexeeva ◽  
Larisa Enaleva ◽  
Tatyana Tupolskikh ◽  
Nataliia Shumskaia

The use of new non-traditional types of plant materials in the diet is one of the ways to improve the meat products’ quality. The combination of plant proteins with animals creates biologically active amino-acid complexes which increase its bioavailability for organism and biological value of the product. In this case, the use of non-traditional plant materials in the production technology of new types of sausage products to improve the quality of the end product is prospective and relevant. Research objective is development of formulations and technologies for new types of high biological value products, based on combination of meat raw materials with functional additives of plant origin. The work was performed at the Department of Food Technology FSBEI HE «Don State Agrarian University», Persianovsky, Rostov region. The objects of research were the new protein-carbohydrate complexes based on flour from germinated seeds of mung bean, control and model forcemeat based on trim beef of first grade, lean trim pork and mid fat trim pork, and end products. Introduction to the cooked sausage products formulation of mung bean germinated seeds flour has a beneficial effect on the organoleptic properties of the end product and enriches it with biologically valuable substances.


2014 ◽  
Vol 60 (3) ◽  
pp. 34-43 ◽  
Author(s):  
Katarzyna Bączek

Summary Eight species of Eleutherococcus genus grown at Rogów Arboretum collection were compared in respect of biologically active compounds accumulation, i.e. eleutheroside B and E, phenolic acids and sterols. For the determination of content of these compounds in underground organs and stem bark high performance liquid chromatography was applied. The highest content of the sum of eleutherosides B and E was observed in underground organs and stem bark of E. leucorrhizus (322.0 and 300.8 mg × 100 g-1, respectively) and E. nodiflorus (218.9 and 363.5 mg × 100g-1, respectively). In the raw materials from E. senticosus, the content of these compounds was significantly lower (177.4 and 159.3 mg × 100 g-1, respectively). E divaricatus and E. setchuenensis were characterized by the lowest accumulation of these compounds in underground organs whereas E. divaricatus, E. sessiliflorus and E. giraldii - in stem bark. Four phenolic acids were identified in the investigated species, namely: chlorogenic, rosmarinic, ferulic and caffeic acids. The main phenolic acid in the analyzed species was chlorogenic acid. The content of this compound in underground organs varied from 102.1 (E. henryi) to 958.7 mg × 100 g-1 (E. leucorrhizus) and in stem bark from 26.7 (E. giraldii) to 542.5 mg × 100 g-1 (E. setchuenensis). The content of identified sterol compounds (sitosterol 3-O-β-D-glucoside /eleutheroside A / campesterol, stigmasterol) was relatively low, but higher in underground organs in comparison with stem bark.


2019 ◽  
Vol 48 (3) ◽  
pp. 105-114 ◽  
Author(s):  
Станислав Смирнов ◽  
Stanislav Smirnov ◽  
Олия Фазуллина ◽  
Oliya Fazullina

The research featured the development of formulae and technologies for the production of biologically active additives (BAA) for functional foods with potential adaptogenic, antioxidant, and hepatoprotective properties. Shilajit, a natural mineral-organic substrate, and various plant materials were used as sources of natural biologically active substances (BAS). The relevance of the study comes from the need for more efficient use of natural biologically active compounds, as well as from the need to expand the range of domestic dietary supplements with natural ingredients, which resulted from the current import substitution. Scientific data and experimental studies made it possible to choose advantageous raw materials with BAS and to assess their safety and potential properties. An experiment determined the content of BAS in the raw materials and in the control samples. A compatibility test wasconducted by mixing. As a result, five formulae with various combinations of natural components in the composition were scientifically substantiated. The authors defined the physicochemical and technological properties of the mixtures of dry extracts that determined the choice of technology and the quality of the finished product. The present paper also describes technology of obtaining encapsulated dietary supplements based on dry extracts of medicinal plants and shilajit. The advantage of the technology lies in the use of natural components and special processing methods of BAS preservation. The research included the method of water-activated granulation while 20% ethyl was used as a wetting agent. To obtain the granulate, lactose (Russia) and AEROSIL® 200 Pharma (Evonik Industries, Germany) were used as additive agents. As a result, capsules with a dosage of 700 mg were developed. The BAA can be produced on food and pharmaceutical plants.


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