scholarly journals Intensification of Polysaccharides Extraction from Plant Raw Materials under the Influence of Electric Current

2021 ◽  
Vol 57 (5) ◽  
pp. 66-77
Author(s):  
А.P. Malyushevskaya ◽  
◽  
V.N. Tsurkin ◽  
А.V. Ivanov ◽  
А.N. Yushchishina ◽  
...  

The article presents the results of the studies of the intensification of the processes of extraction of water-soluble polysaccharides from plant raw materials – medicinal hyssop (Hyssopus officialis L.) under the action of an electric current. The effect of direct, alternating, and pulsed electric currents on the degree of polysaccharides extraction was studied in comparison with the traditional pharmacopoeiсal method. It is shown that the energy consumption for the extraction process, intensified by a pulsed electric current, is significantly lower compared to extraction by convection heating. At the same time, the use of electric current makes it possible to reduce the limiting processing temperature from 70 °С to 40 °C, this will allow in the future to obtain not only aqueous, but also aqueous-alcoholic and alcoholic extracts, and, consequently, to extract biologically active non-soluble in water substances.

2020 ◽  
Vol 8 (2) ◽  
pp. 349-361
Author(s):  
Vladimir Kondratenko ◽  
Tatyana Kondratenko ◽  
Andrey Petrov ◽  
Georgy Belozerov

Introduction. The existing diversity of plant raw materials and products predetermine the prospects of studying their potential as sources of pectin substances. However all current classifications are either fragmented or inconsistent. Study objects and methods. Our theoretical ivestigation aimed to develop an adequate classification for all taxa of plant origin, as well as their tissues and derivatives as pectin-containing materials. We developed criteria for assessing transformation potential of the protopectin complex based on the mass fractions of biologically active non-uronide components, native water-soluble pectin, the protopectin complex, and pectin substances. Individual boundary conditions were based on individual pectin potential, protopectin fragmentation potential, and pectin isolation potential. Results and discussion. Based on the boundary conditions, we defined an universal criterion space that included a set of points M in the coordinates expressed by three main criteria. According to individual boundary conditions, the criterion space was divided, or zoned, into four domains corresponding to protopectin fragmentation potential. They were characterized by: 1) lack of pectin potential, 2) ineffective protopectin fragmentation, 3) ineffective isolation of fragmentation products, and 4) effective isolation. Finally, we developed a generalized algorithm to determine the location of points M[μ1, μ2 , μ3 ] in the zoned criterion space, characterizing the plant tissue. Conclusion. Our approach can be used to assess any plant tissue for its protopectin transformation potential, which determines the technological influence on its pectin potential. This approach is universal, i.e., applicable to both plant tissue and its derivatives.


The technology of production of a biologically active phytocomplex in the form of a biologically active additive has been discussed. The qualitative and quantitative composition of the formulation, which forms the functional properties of a specialized product, has scientifically been determined. The main stages of production include the preparation and input control of the raw material, the preparation of a mixture for encapsulation, including the steps of dispensing, sieving, grinding and mixing at a rate of 100 kg / 1 h, encapsulation and deducting, packaging, packaging and storage. A description of the technology of ex-traction of plant raw materials has been given, which is of great importance in the formation of consumer properties of the product being developed. The extraction process includes: obtaining liquid recovery us-ing demineralized water with dissolved in it sodium bicarbonate in an amount of 8% of the dry feed con-tent. The extractant-raw ratio is 1:13, the extraction time is 4 hours for each time; thickening of the liquid extract. It is carried out by means of vacuum in a vacuum evaporator plant before obtaining an extract with a solids content of not less than 20%; obtaining a dry extract. It is carried out by spray drying at a temperature of 90-95 ° C. The advantage of the developed technology of dietary supplements is the possi-bility of combining several differently directed biologically active substances in one capsule. The gelati-nous membrane reliably protects the contents from various environmental factors. Functional properties of the formulation formula of a specialized product are aimed at the prevention and comprehensive treatment of infectious viral diseases, confirmed by the conclusion of experts from the Russian Federal Service for Consumer Rights and Consumer Protection and the results of clinical trials in a group of pa-tients with acute respiratory viral infections. The developed product has been approved and produced at the enterprises of the company «Art Life».


2019 ◽  
Vol 8 (1) ◽  
pp. 24-28
Author(s):  
Yu. I. Chistova

Introduction. Use of medicinal species at home entails some inconvenience. Therefore, it is topical to obtain phytopreparations, in particular dry extracts, from medicinal plant raw materials. This ensures the maximum yield of a complex of biologically active substances, and simplifies the way of its application, dosing and storage. The department of pharmacy of the Altai State Medical University has developed a specie of the following composition: dandelion medicinal herb and large burdock leaf (1:1). On the basis of this species, a technology for obtaining the dry extract is being developed. Variety factors influence on the output of a complex of biologically active substances from plant raw materials: the technological properties of raw materials, the methods and conditions for carrying out the extraction process, and the equipment used. Aim. To determine the optimal conditions for extracting a specie of dandelion herb and a large burdock leaf. Materials and methods. To solve this problem, methods of mathematical planning of a multifactorial experiment have been used: simplex method of mathematical planning, incomplete factorial experiment of type 25-2 for compiling the equation of the response surface, the method of steep ascent (the Box – Wilson method) along the response surface. Based on the theoretical basis of extraction, parameters and factors of process optimization were chosen, intervals of their variation are indicated. Variable factors – shredding, the ratio of «raw materials : extractant», time of maceration, temperature and the number of maceration. The extraction was carried out by remaceration, aqua purificata serves as extractant. The parameter of optimization was the exhaustion of the specie of extractive substances. Results and discussion. As a result of the simplex method, a number of studies were carried out until the area of the supposed optimum was reached. To describe the experiment in the region of the optimum and to compose the equation of the response surface, an incomplete factor experiment of the type 25-2 were put. A linear equation of the extraction process were obtained and the adequacy of the work of the obtained mathematical model is proved. To refine the extraction conditions and establish the optimal extraction regime, the method of steep ascent on the response surface was used. Conclusion. As a result of the experiment, optimal extraction conditions were established: crushing – 2 mm, ratio «raw material : extractant» – 1:10, time of maceration – 30 minutes, number of maceration – 3, temperature – 100 °С. These results will be used in the development of technology and the technological scheme for obtaining the dry extract of the specie.


2021 ◽  
Vol 17 (2) ◽  
pp. 56-66
Author(s):  
A. A. Fabritskaya ◽  
S. O. Semenikhin ◽  
V. O. Gorodetsky ◽  
N. I. Kotlyarevskaya ◽  
E. P. Victorova

The article overviews modern studies of domestic and foreign scientists in the field of extraction of biologically active substances from plant materials using enzymes. Extraction of biologically active substances using enzymes allows for controlled biotransformation of plant materials due to the precise specificity and selectivity of enzymes, which creates mild conditions that ensure the preservation of biologically active substances. It has been noted that the quality of the extractant used has a significant effect on the efficiency of the extraction process. Thus, raw materials treated with a combination of an electrolyte and an enzyme are extracted more efficiently by reducing the mass transfer barrier. The main advantage of using supercritical fluids as an extractant is a decrease in temperature or pressure that leads to the precipitation of the extractable substance. One of the main disadvantages of the process of extracting biologically active substances from plant materials using enzymes is their high cost. To eliminate this disadvantage, the following intensification methods are used: ultrasonic treatment, high pressure treatment and microwave treat- ment. The most promising methods for intensifying the process of extracting biologically active substances from plant materials using enzymes are methods of ultrasonic and microwave treatment. Ultrasonic treatment under optimal conditions allows increasing the activity of enzymes, and microwave treatment provides more efficient penetration of the extractant into the tissues of plant material, due to the destruction of cell walls.


Author(s):  
Chernichkina A.D.

A large number of biologically active substances, organic acids, tannins, and pectin substances were detected during the study of fruits, leaves, and pulp of the fruits of mountain Ash. The content of these substances in leaves and pulp will significantly expand the arsenal of medicinal plant raw materials used. Given the wide distribution of mountain Ash in the territory of the Russian Federation, harvesting leaves from the same plants after harvesting the fruit and using pulp will make it possible to obtain new phytopreparations.


2020 ◽  
pp. 3-14
Author(s):  
Aleksandr Luferov

The article provides brief information about cardiotonic, sedative, cytostatic, diuretic, and antibacterial effects of biologically active compounds of Adonis L. (Ranunculaceae) species. Chemical studies allowed to identify the cardiac glycosides, or cardenolides: or cardenolides: adontoxin, adonitol, adonitoxigenin, acetyldigitoxin and others. In scientific medicine, it is currently allowed to use Adonis vernalis L. Other types of Adonis have a similar chemical composition and are offered as substitutes for this official species, for example, Adonis apennina L. Many Adonis species have limited natural resources, and in some regions are rare, requiring conservation of their natural populations. The search for alternative sources of medicinal plant raw materials, based on this, is relevant. The experimental part of our research was carried out using the morphological and geographical method with the involvement of information on ecology and phenology. For the first time summarizes the diagnostic features of Adonis flora of Russian flora. Previously unknown structural features (shape and size of anthers) were identified that characterize the subgenera Adonanthe and Adonis. Taxonomic study of the genus Adonis of the Russian flora allowed us to determine its species composition, clarify its systematic affiliation, and nomenclature synonyms. 9 species were identified. Of these, 6 are perennials belonging to the subgenus Adonanthe, section Consiligo, which includes 2 subsections: Amurenses (2 species) and Vernales, which is differentiated into 2 rows: Apenninae (2 species) and Vernales (2 species). Subgenus Adonis is represented by 2 sections: Adonis (1 species) and Lophocarpa with sections Aestivales (1 species) and Dentatae (1 species). For all the considered species and varieties, the main distribution areas are given. A key has been compiled to determine the wild Adonis species distributed in Russia.


Author(s):  
SHAPOVALOVA Nataliia ◽  
VEZHLIVTSEVA Svitlana ◽  
ANTIUSHKO Dmytro

Background. The deficiency of essential nutrients in the human body is the root cause of reduced efficiency, general resistance of the body to various diseases. That is an urgent problem in the context of the spread of coronavirus infection. In this regard, the search for opportunities to meet the needs of the population in food products that contain biologically active substances (BAS) through the use of high-value and at the same time available plant raw materials is extremely important. Marigolds attract special attention among such raw materials. The aim of the work is to study the chemical composition and evaluate the consumer properties of Tagetes L. varieties, zoned in the Kiev region, to prove the possibility of increasing the biological value of pasta by adding to their recipe powder from marigold inflorescences. Materials and methods. The object of research is pasta of B group (noodles). Inflorescences of marigolds of different varieties gathered during the flowering period in July-September 2019–2020 in the territory of Vasylkiv and Obukhiv districts of Kyiv region, Ukraine were used as enriching plant raw materials. The quality of finished pasta was assessed by organoleptic and physicochemical indexes (moisture content and titratable acidity). The content of mineral elements in the fine powder of marigold inflorescences was determined on the EXHERT-3L device, the quantitative composition and BAS identification – by spectrophotometric analysis on the device Specord-200 Analytic Jena UV-vis. The integrated quality index of pasta products was calculated taking into account the importance factors of individual indexes. Results. Comparing the obtained results, we can state that all the studied varieties – Gold Kopfen, Orange Flame, Hawaii, Equinox are characterized by high biological value, regardless of the area of collection. As a result of calculated and experimental studies it was determined that the addition of 7 % of the supplement does not provide the required supply of vitamins and minerals. Replacing the flour in the recipe by 20 % significantly improves the mineral composition, but deteriorates the taste and aromatic properties of pasta. The most optimal and rational amount of added additive is 15 %, as it improves the organoleptic properties of pasta and enriches their BAS. Conclusion. The usage of non-traditional vegetable raw materials, in particular powder from marigold inflorescences, which is rich in biologically active substances, allows not only to expand the range, improve the quality of finished products, but also increase the biological value of the product. The optimal amount of additive –powder from marigold inflorescences, was defined. It is 15 % by weight of flour in the production of noodles. This concentration allows not only to improve the organoleptic properties, but also to increase the content of biologically active substances – vitamins, micro- and macronutrients. The usage of non-traditional natural raw materials (powder from marigold inflorescences) allows to abandon artificial colorsand give the finished pasta a pleasant colorand aroma.


Author(s):  
M. V. Manukovskaya ◽  
I. P. Shchetilina ◽  
A. G. Kudryakova ◽  
S. R. Kozlova ◽  
A. O. Torosyan ◽  
...  

The development of targeted beverages is a priority for healthy eating. Plant raw materials containing a wide variety of biologically active substances are used for their production. The presence of these ingredients helps to improve many physiological processes in the body, as well as to increase its immune status. The high efficiency of ultrasonic effects on various technological processes was confirmed by numerous studies. Ultrasonic extraction was carried out at t = 20 ? and an ultrasonic wave frequency of 22 kHz. As a result of the research, it was found that the equilibrium state is achieved within 15 minutes with ultrasound exposure. Natural raw materials, their chemical composition and the influence on the human body were studied in the work to develop new beverages recipes. The selected ingredients in a certain quantitative ratio made it possible to obtain beverages with improved bio-corrective properties, which allows satisfying the daily requirement of the human body for biologically active substances. Ultrasonic exposure has a positive effect on the organoleptic characteristics of the beverage and the aftertaste, as proved by the comparative organoleptic evaluation of the samples. The functional properties of the beverages developed were confirmed experimentally. The following was determined in the beverages: macronutrients content, antioxidant activity, vitamin C content, shelf life duration. The ultrasonic extraction method application in the technology of beverages manufacturing allows: to reduce the preparation time by half, to reduce the amount of raw materials by 15%, to increase the content of macronutrients by 45%, to increase the content of vitamin C by 35%, to increase the antioxidant activity by 45-50%, to increase storage stability by 50-60%, to improve organoleptic characteristics. The results obtained prove the intensifying effect of ultrasonic exposure in the production of functional beverages.


2020 ◽  
Vol 100 (4) ◽  
pp. 52-59
Author(s):  
А.S. Kishkentayeva ◽  
◽  
S.N. Mantler ◽  
М.М. Zhakanov ◽  
S.М. Adekenov ◽  
...  

The review summarizes data on biologically active compounds of Achillea nobilis L. and methods of their isolation. From Achillea nobilis L., collected in different places of growth, the following have been isolated: essential oil, the main components of which are monoterpene compounds; sesquiterpene lactones estafiatin, hanphyllin, anobin, chrysartemine A, canin, anolide and tanapartin-β-peroxide; the steroid acetyleucanbin; flavonoids: 3,5-dihydroxy-6,7,8-trimethoxyflavone, 5-hydroxy-3,6,7,4’-tetramethoxyflavone and 5,3’-di-hydroxy-3,6,7,4’-tetramethoxyflavone. It has been determined that the component composition of the essen-tial oil of Achillea nobilis L. largely depends on the soil and climatic factors in the places of its growth, the phase of the growing season and the method of its extraction from plant raw materials, and the extractant used (chloroform, ethanol, hot water, diethyl ether). Antibacterial, antimicrobial, antioxidant, antiparasitic activi-ties are characteristic both for the sums of extractive substances from Achillea nobilis L. and for individual compounds isolated from them. Methods for the isolation of biologically active substances from Achillea nobilis L. for the development of new drug substances are described. The main aim of this work was a com-parative analysis of the available research results on the phytochemical study of Achillea nobilis L.


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