scholarly journals JELLY FOOD CONCENTRATE WITH ENCAPSULATED HIBISCUS EXTRACT

Author(s):  
HRABOVSKA Olena ◽  
VITRIAK Oksana ◽  
AVRAMENKO Alina

Background. Taking into consideration the intense rhythm of life, the development of technologies for instant food products of increased nutritional value is urgent. Typically, food concentrates for desserts include fruit or fruit and berry fillings and require cooking to prepare ready-made meals. In this case, heat treatment of the mixture (boiling) negatively affects the thermolabile biologically active compounds. The aim of the work was to develop a recipe for instant food jelly concentrates of increased nutritional value based on encapsulated powdery hibiscus extract. Materials and methods. To encapsulate the aqueous-alcoholic extract of hibiscus and obtain a powdered semi-finished product, swelling potato starch was used. Rheological studies were carried out using a "REOTEST-2" rotational viscometer. Results. In order to enrich food concentrates of instant kissel with biologically active substances, we studied a method for extracting dry hibiscus flowers with aqueous-alcoholic solutions of various concentrations. It was found that the extractivity and the transfer of polyphenolic compounds, including anthocyanins, to the extract are improved when a water-alcohol mixture with an ethyl alcohol concentration of 30 % is used as an extractant. For the preparation of a powdery hibiscus extract, modified swelling starch was used, which has the property of swelling in cold water, which makes it possible not to subject the mixture to prolonged heat treatment for preparing a ready-made dish and to preserve the biologically active substances of the hibiscus extract. In addition, this starch is an effective solid carrier that plays a protective role for thermolabile vitamins and bioflavonoids. On the basis of experimental studies, formulations of instant jelly have been developed, which include fructose, powdered hibiscus extract, apple pectin and ascorbic acid. The study of the rheological properties of semi-finished products based on hibiscus extract, as well as ready-made jelly, testifies to the receipt of a finished dessert with a delicate creamy consistency. Conclusion. A method for obtaining a powdery encapsulated hibiscus extract based on swelling potato starch and a composition of a food jelly concentrate using this semi-finished product have been developed. It was found that for the extraction of raw materials it is better to use a water-alcohol mixture with an ethanol content of 30 %, since most of the anthocyanins are converted into the extract under these conditions. The developed semi-finished product of dry hibiscus extract can be used as a thickener, acidifier and colorant in recipes for food concentrates for instant dessert dishes. Due to the use of swelling starch, food concentrates of jelly do not need to be boiled, and the presence of vitamins, organic acids, flavonoids and especially anthocyanins in the hibiscus extract increases the nutritional value of the finished product.

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.


2022 ◽  
Vol 51 (4) ◽  
pp. 779-783
Author(s):  
Galina Dubtsova ◽  
Alexander Lomakin ◽  
Irina Kusova ◽  
Ekaterina Bulannikova ◽  
Dmitriy Bystrov

Introduction. Plant raw materials can be a source of biologically active substances and increase the nutritional value of food products. The present research objective was to determine the content of biologically active substances in powdered viburnum and barberry. Study objects and methods. The study featured viburnum (Viburnum opulus L.) and barberry (Berberis vulgaris L.), dried by convection and crushed into particles of 50 microns. Results and discussion. The total content of phenolic compounds in powdered viburnum was 3114.07 mg/100 g, in powdered barberry – 2272.7 mg/100 g. The content of flavonoids in powdered viburnum was 324.52 mg/100 g, in powdered barberry – 390.00 mg/100 g. The flavonoid profile of the powders included rutin, hyperoside, quercitrin, isoquercintrin, and astralagin. The total content of catechins was 446 mg/100 g for viburnum and 506 mg/100 g for barberry. The catechins included mainly epigallocatechin and catechin. In powdered viburnum, the catechin composition was as follows: epicatechin – 196, catechin – 118, and epigallocatechin – 89 mg/100 g; in powdered barberry: epigallocatechin – 173, catechin – 111, and epicatechin – 74 mg/100 g. The antiradical activity in relation to trolox equivalent was 7560 mg/100 g in powdered viburnum and 9460 mg/100 g in powdered barberry. Conclusion. The obtained viburnum and barberry powders can fortify food with biologically active substances and expand the range of functional products.


2021 ◽  
Vol 51 (2) ◽  
pp. 301-311
Author(s):  
Bayana Bazhenova ◽  
Anastasia Burkhanova ◽  
Yuliya Zabalueva ◽  
Roman Dobretsky

Introduction. Antioxidant system is one of the main cellular mechanisms of adaptation. It is able to neutralize the destructive effect of free radicals, both external and internal. Functional products, especially of meat origin, can provide necessary antioxidant properties. Some types of plant raw materials possess a high content of polyphenol complexes with antioxidant properties. Therefore, introduction of phytonutrients into the composition of meat products can help to expand the range of foods with an antioxidant effect. Daurian rosehip is rich in biologically active substances and can increase their safety during processing. The research objective was to study the possibility of immobilization of Daurian rosehip antioxidants by protein-lipid inclusion. Study objects and methods. The research featured fruits of Daurian rosehip, its aqueous alcoholic extract, and protein-lipid complex. Results and discussion. The article presents experimental data on the chemical composition of Daurian rosehip. The optimal method with the best antioxidant results was a microwave phytoextraction by an aqueous alcoholic solution at a power of 800 W for 6–7 min. The antioxidants were immobilized by including the protein-lipid complex into the gel. The experiment demonstrated excellent functional and technological characteristics of the resulting system. Conclusion. The research revealed the optimal modes of microwave extraction of biologically active substances of Daurian rosehip. The rosehip extract was included into the protein-lipid complex and immobilized antioxidants, thus increasing their efficiency.


2020 ◽  
Vol 20 (1) ◽  
pp. 31-35
Author(s):  
B. Iegorov ◽  
L. Fihurska ◽  
O. Tsiundyk ◽  
Y. Morozovska

The article considers the benefits of growing salmon fish in ponds, pools, cages, as well as in lakes and reservoirs in comparison with natural conditions. The main countries producing salmon fish in the world are analyzed. The share in gross production in the world is about 48 %, and in Ukraine is about 7 %. The quality and nutritional value of salmon fish is confirmed by the high market price. The main countries producing salmon fish in the world are analyzed. The share in gross production in the world is about 48%, and in Ukraine it is about 7%. The quality and nutritional value of salmon fish is confirmed by the high market price. The relevance of salmon fish breeding is substantiated, it allows for a relatively short period of time (up to 2 years) to obtain fish with a market weight of up to 3.0 kg The state of salmon cultivation in Ukraine is considered, about 1,500 tons of salmon are marketed annually. The need for the production of compound feeds for salmon fish in relation to natural feed is substantiated. Compound feed expenses per 1 kg of salmon fish mass increase in relation to wild fish feed expenses are presented. The need for salmon fishes for nutrients and biologically active substances for the manufacture of nutritious compound feeds, due to the production of high quality salmon, is presented. The types of compound feeds, their advantages and saving of feeding are presented. Technological methods for the production of compound feeds for salmon fish are analyzed, such as dry or wet granulation, extrusion, briquetting, compound feed production by knurling, microencapsulation of granules and paste-like compound feeds. Ready-made feed should be balanced, waterresistant, have reduced fragility, feed costs for fish growth should be minimal and have increased fish productivity. All types of feed should be completely eaten by fish, absorbed as much as possible, not secrete dyes, not lead to liver obesity, provide fish with a balanced amount of nutritious and biologically active substances. The state of domestic feed mills for the production of high-quality feed for salmon fish is analyzed. Because of it, in order to the advent of new recipes and methods of feeding, the technology for the production of animal feed for these fish species is being improved.


2021 ◽  
Vol 17 (2) ◽  
pp. 33-39
Author(s):  
T. B. Kolotiy ◽  
Z. S. Kovalenko

Recently, there has been an increasing interest in whey drinks. It is possible to expand the range of whey drinks and regulate their nutritional value due to the wide use of a variety of fillers. Non-traditional local plant materials can be used as fillers. The products of processing (powders, juices, syrups) of fruits and berries are more and more widely used. The value of wild fruits, along with a pleasant taste, is determined by the content of vitamins, minerals, antioxidants and other biologically active substances that play an important role in human nutrition, regulate metabolic processes, and affect the functions of individual organs. The aim of the research is to study the effect of fruit syrups on the nutritional value of whey drinks. The fruits of the following wild plants are consid- ered as the objects: common viburnum (Viburnum opulus), cinnamon rosehip (Rosa cinnamomeal), raspberry (Rubus idaeus L.). The choice of raspberries, rose hips and viburnum as raw materials for enriching drinks is due to the high content of biologically active substances, such as vitamins C, B, E, a fairly large raw material base, environmental friendliness, and availability. The article considers the results of the use of fruit syrups obtained from rose hips, viburnum and raspberries in the preparation of whey drinks. The influence of the dosage of fruit syrups (5 %, 10 % and 15 %) on the organoleptic and physicochemical indicators of the quality of whey drinks has been established. The optimal dosages of syrups from fruits of wild plants in the preparation of whey drinks have been determined. Rosehip, viburnum and raspberry syrups have a high nutritional value, which will enrich whey drinks and give them a functional focus.


2018 ◽  
pp. 169-174
Author(s):  
Светлана (Svetlana) Николаевна (Nikolaevna) Петрова (Petrova) ◽  
Анастасия (Аnastasiya) Дмитриевна (Dmitrievna) Кантан (Kantan) ◽  
Юлия (Yuliya) Валерьевна (Valer'evna) Яргунова (Yargunova)

Black currant being a widespread Russian culture is of interest as a source of biologically active substances due to its easy accessibility and renewability. Both berries and its leaves contain biologically active substances capable of exhibiting antioxidant properties, the chemical structure of which is accessible to the enzymatic systems of the human body. The paper presents the results of the investigation of the composition and properties of thick extracts obtained from black currant leaves with successive treatment of plant material with a number of organic solvents (hexane, acetone, 70% ethanol) in order of increasing their polarity, followed by distillation of the extractants. In the obtained extracts, biologically active substances such as flavonoids, chlorophylls and carotenoids are quantitatively determined. According to the content of chlorophylls and carotenoids, acetone extract is the leader and alcoholic extract is the leader in the content of flavonoids. The extract obtained with the use of acetone, contains the greatest total amount of biologically active substances. An evaluation of the antioxidant activity of the extracts was carried out using oxidation of adrenaline by air oxygen as a model reaction. It is shown that the rate of its oxidation decreases 3 to 5 times in the presence of extracts of the leaves of black currant. Acetone thick extract shows the greatest inhibitory ability.


2021 ◽  
Vol 2021 (1) ◽  
pp. 55-64
Author(s):  
Nikolay Gaponov

This paper presents the results of experimental studies the influence of biologically active substances of propolis on micromorphometric parameters of the ileum in young pigs. The results of the experiment make it possible to ascertain a change in the functional activity of the studied organ after the use of the drug from propolis. Since the most active process of absorption of monomeric hydrolysis products, especially amino acids and carboxylic acids, occurs in the ileum. Hydrolysis of intermediate products to monomers and preparation of the transition to absorption is carried out by enzymes fixed on the intestinal cell membranes. And the level of bioconversion of feed and retention of nutrients depends on their shape and structure, which ultimately affects the payment for feed with products. Therefore, the study of the histology of the small intestine and especially the ileum is of great importance. So, as a result of the study, it was found that the most characteristic histological changes in the structural components of the intestinal wall are observed in young animals of the experimental groups. The thickness of the main lamina of the mucous membrane of the ileum in piglets in the control group is 308.28 ± 2.81 µm, in piglets in the experimental group – 255.49 ± 0.75 µm. The height of the villi of the ileum, in the animals of the control group, is significantly lower and amounts to 193.89 ± 2.66 µm versus 280.97 ± 3.37 µm in the experimental group. Similar changes are observed in young animals of the older age group. The height of intestinal villi in pigs of the experimental group significantly exceeds the indicator of the control group and is 256.89 ± 1.62 µm and 163.96 ± 0.61 µm, respectively. The muscle plate of the intestinal mucosa of the pigs in the experimental group is significantly thicker than the control and is 17.8 ± 0.2 μm and 8.89 ± 0.08 μm, respectively. The obtained experimental material substantially supplements the information on the biological properties of propolis preparations. In practical veterinary medicine, research results can be taken into account when prescribing propolis for medicinal and prophylactic purposes. Since histological analysis of intestinal sections did not reveal destructive or pathological changes in any of the compared groups. In feeding, using the obtained practical material, we can specify the stimulating effect of the propolis preparation to intensify the growth of animals depending on the age of the pigs.


Author(s):  
D. Aleksandrova ◽  
A. Legosteva

During development of antidiabetic extract in blueberry shoots (Vaccinium myrtillus L.), ginseng leaves (Panax ginseng C.A.Mey.) and water-alcohol extraction from this plant material the flavonoid content is studied because this group of biologically active substances has hypoglycemic effect. Qualitative reactions for different groups of flavonoids has confirmed their presence in blueberry shoots and ginseng leaves. In addition, qualitative analysis of water-alcohol extraction on their base using spectrophotometry has also showed presence of this group of biologically active substances. Along with that, quantitative content of flavonoids has been detected using differential spectrophotometry in blueberry shoots, ginseng leaves and water-alcohol extraction on their base.


2021 ◽  
pp. 62-65

The aim of the study is to develop a technology for the production of food sweetener from stevia (Stevia rebaudiana Bertoni) - a plant of the Asteraceae (Compositae) family, cultivated in Uzbekistan using alcohol extracts. Diterpene glycosides were isolated from the extract - stevioside (1), rebaudioside A (2) and other biologically active substances. Pharmacological studies in mice have shown the presence of an immunostimulating effect in the alcoholic extract and in the individual diterpene glycoside, stevioside (1).


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