This paper analyzes the literature data on the practical use of plants of the genus Filipendula as a nutritional component and a promising source of biologically active substances. For immunomodulatory action, the flowers and leaves of the meadowsweet are mainly used, which have demonstrated a significant effect in numerous in vitro and in vivo models. Among the diseases in which the immunomodulatory properties of plants of the genus Filipendula are found the most application are inflammatory processes of the upper respiratory tract, a number of inflammatory disorders of the skin, as well as a diaphoretic and antispasmodic, in bronchial asthma, etc. An analysis of the literature data allows us to conclude that these plants have a beneficial effect on human health, both individually and as a component of food, due to their unique phytochemical profiles.

Common chicory (Cichorium intybus L.) is widely known in traditional medicine of many countries, but in official medicine its use is limited as a part of biologically active additives. Despite the available information about pharmacological activity of leaf extracts, their use as a medicinal herbal raw material is almost not considered. The purpose of the work is to study the accumulation dynamics of phenolic compounds (PC) in the leaves of cultivated chicory to optimize the time of harvesting the above-ground mass. The article presents data on the accumulation dynamics of PC in the leaves of two varieties of cultivated chicory, and also compares the obtained data with similars of wild-growing chicory.Results. It was noted that the content of phenolic compounds in the leaves of cultivated chicory is 1,5-2 times higher in comparison with the raw materials of wild plants. The studied varieties differ in the content of PC by 8% in average. It has been established that the main phenolic compounds in the leaves of cultivated chicory are chicoric, chlorogenic and cafftaric acids; their total content in the obtained extracts is 55 %. It was noted that the period of maximum accumulation of PC in leaves falls on the end of september – beginning of october. The established chemical composition, a higher content of phenolic compounds compared to wild plants, as well as the coincidence of the maximum accumulation of PC in the leaves with the approximate date of harvesting chicory roots allows us to consider its cultivation in culture as a promising direction with the aim of the integrated use of the obtained raw materials for both food and pharmaceutical industry.

Relevance. Potatoes with red and purple flesh are highly valued dietary products and sources of polyphenolic compounds with antioxidant activity, especially anthocyanins. It has been found that the anthocyanin content in potatoes correlates with the total soluble phenolic content and antioxidant activity. These measures are significantly higher for coloured potatoes. The total phenolic content in particular the total anthocyanin content increases during the cold storage of coloured potatoes. Pigmented potatoes are also more preferable for food and industrial processing because of retaining of antioxidant properties and improving of final products quality. Сoloured potatoes selection and biotechnological approaches of regulation of anthocyanins accumulation are based on the understanding of the molecular genetic processes of anthocyanins biosynthesis. The anthocyanin biosynthesis is a part of the phenylpropanoid metabolic pathway. It is controlled by the MBW complex. The MBW complex includes the transcription factors MYB, bHLH, and WD40. A number of the MYB complex genes have been identified in potatoes. The key role in potatoes pigmentation variability is currently assigned to the StAN1 gene. According to available data anthocyanins play a protective role in response to various types of stress in potatoes.

In the genus Solanum there are a number of less common vegetables. S. aethiopicum L. and S. macrocarpon L. are a two popular species of eggplant, traditionally grown in tropical Africa. The object of research was breeding lines and hybrids of S. melongena L. and accessions of S. aethiopicum and S. macrocarpon. Plants were grown in condition of low-capacity hydroponics according to all agrotechnical requirements. The fruits for analysis were collected from one layer of plants at the phase of technical maturity. Phenolic compounds are unique secondary metabolites that are synthesized in all plant cells and have increasingly wide application in pharmacology and medicine. Flavonoids was in the range of 0.7-1.1% in lines and F1 hybrids of S. melongena, however more flavonoids was obtained in the African eggplant accessions, such as S. aethiopicum L., 1,4% and S. macrocarpon L., 1.2%. The total content of phenolic compounds was in the range of 1.7-2.3% in the pulp of S. melongena L. fruits. The total content of phenol carbonic acids ranged from 1.0-1.5% in the lines and hybrids F1 studied, as referred to S. melongena. The content of phenol carbonic acids is higher from 1.5% to 1.8% in S. aethiopicum and S. macrocarpon. In the pulp of the interspecific hybrid fruits the total content of flavonoids and phenol carbonic acids was 2.6-2.7% that was 1.5 times as much as in S. melongena.

Using the high-efficiency liquid chromatography, the phenolic compounds of yacon (Polymnia sonchifolia) introduced in Ukraine have been studied. The derivants of hydroxycinnamic acid is prevalent in the ethanol extracts from leaves and roots of yacon. Differences in the contents of  ethanol extracts from fresh and dry roots were shown. The total amount of hydroxycinnamic acids was 2,8 % – 4,3 % depending on the layer of leaves. It was found that roots content 36-45% of fructosans expressed as fructose and dry matter.

The biochemical content of stachys nodules is provided: dry matter -30,5%, among which proteins - 2,2%, amides - 1,7%, lipids- 0,2%, carbohydrates- 19 % (reducing sugars - 1,8%, cellulose - 2,1%, pectin - 1,9%. Stachys has big amount biologically active substances and antioxidants such as vitamin C, stachyose, phenolic compounds, flavonoids, and glycosides. Stachys also has micro- and macro-elements and mineral compounds, which play important role in physiological and metabolitic processes of plant and human.

Diverse technological methods are widely used in horticulture to improve the energy of seed germination, as well as growth and development of plants and their productivity. Ecologically safe methods to accelerate the plant growth processes are known as a presowing treatment of seeds and foliar feeding by plant growth-stimulating agents of natural origin. Pre-sowing seed treatment is necessary when plants grow and maturate not simultaneously, as noticed in amaranth. The action of growth-stimulating agents is an influence in slight concentration not only on biometrical plant parameters, but also on photosynthetic reactions and whole plant physiology. The seed treatment by preparations containing biologically active substances is not only ecologically safe methods but also an economically profitable. Consequently, improvement of quality in vegetable crops by high content of biologically active substances in them, such as polyphenols can be reached with technologies based on the use of preparations, containing biologically active substances and biogenic chemical elements. It was shown that distinctive feature of red leaf plants of amaranth cultivar ‘Valentina’ was a very variable concentration of phenolic compounds such as flavonoids (quercetin, apigenin and their glycosides), hydroxycinnamic acids, simple phenols, polymeric and condensed polyphenols in different aged leaves at the time of vegetation. Moreover, the metabolite variation, antioxidant in fractions of phenolic compounds, obtained from different aged leaves, was increased by biopreparations of natural origin. It is supposed that those preparations had an effect on stress-action system as in protective plant reaction, increasing the antioxidants content. The data obtained has shown that the plants of amaranth, as a promising source of antioxidants, can be used to develop functional food products and phytopreparations.

The development of new type of tea, the baikhovi black tea with leaves of amaranth (50:50), allowed the enrichment of tea by the compounds with vitamin P-activity, quercetine, rutin (3-times increasing), protein, pectin, key amino acids, vitamin C, calcium, ferrum, and organogenic silicon. Owing to the high content of red-violet antioxidant betacyanin in leaves of amaranth, the tea color was improved and antioxidant activity was increased.

Relevance. Rhodiola rosea L. is a perennial herbaceous plant from the Crassulaceae family. The roots and rhizomes of R. rosea contain a range of biologically active compounds. This species is included in the State Pharmacopoeia of the Russian Federation. Medicinal preparations derived from them are widely used as adaptogens, general tonic and anti-stress agents. While the roots have been extensively studied, less attention has been given to the biologically active compounds found in the leaves of R. rosea. An introduced population of R. rosea grows on the territory of the botanical garden of medicinal plants of the All-Russian scientific research Institute of medicinal and aromatic plants (VILAR). The possibility of cultivating this species in the conditions of the Moscow region is being studied.Material and Methodology. The objective of this study was to investigate the composition of phenolic compounds in R. rosea leaves from VILAR biocollection using ultra-efficient liquid chromatography combined with mass spectrometry. Extraction was carried out with 80% acetone. An ultra-high performance liquid chromatographic system with a photodiode array detector and mass spectrometer was used for the analysis of phenolic compounds. Identification was carried out using UV- and mass spectrometry data.Results. As a result of UPLC-DD-MS analysis, peaks of 20 phenolic compounds were detected in R. rosea leaves, of which 19 compounds were tentatively identified. The leaf extract contained eight phenolic compounds from the group of galloyl-glucoses (three isomers of monogalloyl-glucose, trigalloyl-glucose, two isomers of tetragalloyl-glucose, two isomers of pentagalloyl-glucose), two gallotannins (isomers of hexagalloyl-glucose), five flavonoids (four herbacetin derivatives and one gossypetin), phenolic acids (caffeoyl-malic and ferulic acids), arbutin and esculetin. It has been shown that the biologically active substances of R. rosea provide prospects for the use of leaves as raw materials for the development of herbal preparations with anti-inflammatory, antiviral and antitumor effects.

Relevance. Cabbage Kale (Brassica oleracea L. var. acephala) is a green, red and purple leafy vegetable cultivated in Northern and Central Europe, as well as North America. Kale deservedly occupies a high place in the list of functional products due to its high content of biologically active substances. Kale contains vitamins, minerals, antioxidant compounds, carbohydrates, unsaturated fatty acids, proteins and dietary fiber. Despite its high attractiveness as a functional food product, it is not cultivated on a massive scale in Russia.Methodology. The purpose of this work is to study the content of phenolic compounds in two varieties of kale cabbage to substantiate recommendations for its cultivation in Russia. The variety and hybrid of kale cabbage – Dwarf Blue Scotch with green leaves and the hybrid Redbor F1 with red leaves – were used as the object of the study. The content of soluble phenolic compounds and flavonoids, as well as the qualitative composition of phenolic compounds in kale cabbage, was studied. Determination was carried out according to generally accepted methods. Grown plants at the age of 16 weeks were used as samples for analysis. The experiment was carried out in laboratory conditions in 5 replicates.Results. The results of the studies indicate a fairly high content of phenolic compounds and flavonoids in the studied varieties of kale cabbage. It has been demonstrated that the Redbor F1 hybrid is characterized by a higher content of soluble phenolic compounds compared to the Dwarf Blue Scotch variety by an average of ~20%. It was concluded that this Redbor F1 hybrid can be used to develop methods for increasing the efficiency of the synthesis of secondary metabolites that are beneficial to human health, and is recommended to farmers for cultivation in the Russian Federation.