Olga Grygorieva

• PhD
• Senior Researcher at M.M. Gryshko National Botanical Garden

This study aimed to test the antioxidant parameters of the flower and fruit ethanol extracts of 15 genotypes of Asimina triloba (L.) Dunal. (AzTr-01 – AzTr-15) collected in the M.M. Gryshko National Botanical Garden (Kyiv, Ukraine). Antioxidant activity of the extracts of the investigated genotypes was measured with free radical scavenging activity...

Fragaria L. species are popularly known as garden-grown (F. x ananassa Duchesne ex Rozier) or wild (F. moschata Weston and F. vesca L.) plants with biologically active compounds directly responsible for the high antioxidant potential. This work aimed to determine the total polyphenol compounds, anthocyanins, and antioxidant activity of different ex...

Black chokeberry (Aronia melanocarpa L.) attracts scientific interest due to its high content of bioactive compounds with beneficial effects on human health. Presented work aimed to determine the total polyphenol content (TPC), total anthocyanin content (TAC), and antioxidant activity by methods ABTS, DPPH, FRAP of black chokeberry (Aronia melanoca...

Cherries are highly valued not only for their appealing taste and nutritional benefits but also for their rich profile of phenolic compounds, which contribute significantly to their potential health-promoting properties. Apart from these beneficial substances, cherries may also accumulate traces of heavy metals, which raises important concerns as t...

Strawberry (Fragaria vesca L.) plays a valuable role in human nutrition due to its richness in minerals, vitamins, antioxidants, flavonoids, anthocyanins, and other bioactive compounds that benefit the human body. This study focused on assessing the total polyphenol content (TPC) and antioxidant activity (AA) using UV-Vis spectrophotometry, and lev...

The formation of chimera is a well-known phenomenon in variegated ornamental and wild plants, but the biochemical peculiarities of this phenomenon are not well studied. The purpose of this work was to conduct a comparative study of the photosynthetic apparatus functioning, the content of macro-, microelements, flavonoids and brassinosteroids in the...

The contents of biogenic and risk elements in the pomace of 6 grape cultivars (Blaufränkisch, Cabernet Franc, Cabernet Sauvignon, Devín, Dunaj, and Merlot) were analyzed in this study. Content of K, Ca, P, Mg, and Na was 11 750 – 19 070, 2 400 – 3 908, 1 678 – 2 684, 336 – 760, and 1.43 - 59.3 mg.kg-1 DM respectively. Content of Fe, Cu, Mn, Zn, Ni,...

This study aimed to evaluate the mineral content, and content of bioactive compounds in fruits of Cornelian cherry (Cornus mas L.). Neochlorogenic acid, chlorogenic acid, caffeic acid, and rutin were determined in the samples. Vitamin C content ranged from 610.36 to 1344 mg kg⁻¹ FW. Content of K, Ca, P, Mg, and Na in samples ranged from 1750.8 to 2...

Modern pharmacology shows that beetroot extracts exhibit antihypertensive and hypoglycaemic activity as well as excellent antioxidant activity. The promising results of the phytochemicals contained in the extracts suggest the opportunity for their use in functional foods.This study aimed to evaluate the biochemical profile (total ash and crude prot...

Phenological studies do not lose their relevance and are carried out in very different aspects. They are important for monitoring the response of plants to climate changes, the selection of new cultivars of plants, the introduction of new non-traditional fruit crops, agricultural production, etc. According to the BBCH scale, the phenological phases...

This review is based on the nutritional content of the available indigenous foods to identify area of future research. Most indigenous foods are affordable and has good source of micronutrients, but the consumption rate of these foods is declining. It is important to increase awareness of the need to consume indigenous foods to reduce food insecuri...

Nowadays, especially important is the introduction of new plants into cultivation in connection with global climate change. Acclimatization of new fruit plants in Ukraine contributes to an increase in the biodiversity of flora. Castanea sativa Mill. (sweet chestnut) fruits belong to underutilized fruit plants of the forest-steppe of Ukraine, as a p...

The results of seasonal variation of total polyphenols (TPC), flavonoids (TFC) and phenolic acid (TPAC) accumulation and antioxidant activity of Artemisia balchanorum Krasch. × Artemisia taurica Willd. genotypes from the Kherson Oblast of Ukraine represented in this study. The total polyphenol content was identified by the Folin-Ciocalteu method an...

The interest in natural products, namely, bee products is actual nowadays. The Bee pollen is a rich source of nutrients and biologically active compounds with numerous biological activities such as antioxidant, antimicrobial, anticancer, anti-inflammatory, etc. The search for new plant raw as a source of natural products has a practical meaning. Th...

The morphological variability of the male and female flowers of 23 date plum (Diospyros lotus L.) genotypes found together at date plum collection in Arboretum Mlynany (Slovak Republic) was investigated. The collection consists of seed-propagated genotypes, which were established in 1970 with introduced seeds from different countries. Results showe...

This paper is a report on the nutritional composition (dry matter, total protein, fat, crude fibre, ash, β-glucan content, and selected mineral compounds), antioxidant (antioxidant activity with the DPPH method and total anthocyanin content), physical properties, and sensory profiles of prepared bread enriched with black oat flours (variety Norik a...

The aim of this study was to determine antioxidant activity (DPPH and phosphomolybdenum method), polyphenols content (total polyphenols, flavonoids, and phenolic acids), mineral compounds composition (Cu, Zn, Mn, Fe, Cr, Ni, Co, Pb and Cd) and antimicrobial activity (with disc diffusion method) of medicinal herbs traditionally used in the Slovak re...

Phenology is a key trait of plants of all species, as it determines their season and duration of growth and reproduction, as well as their ability to capture variable resources. Understanding the phenology of Elaeagnus multiflora Thunb. a rare but promising fruit and medicinal plant of Ukraine, namely the codification of the stages of seasonal deve...

The dark-blue, fleshy berries of Lonicera caerulea L. are used as fresh or processed in many products such as juice, smoothie, wine, compote, jam, marmalade, candies, chocolate, cake, or extracts. L. caerulea fruits are appreciated in the food industry and medicine mainly due to a high content of biologically active phenolic compounds, especially a...

A by-product from processing of soy into drinks and tofu is the insoluble portion of soybeans, a high-fiber product called okara. With the growing interest in plant substitutes for meat and milk, which are produced mainly from soy, the amount of this by-product, which is often considered waste, is also increasing. Its processing then causes conside...

The research focused on determining the economic value of a selected collection of 20 shrubs from a wild-growing population of Mahonia aquifolium (Pursh) Nutt. from Arboretum Mlyňany and Nitra region. By morphological analysis, we determined weight of fruits 0.18-0.50 g, the height of fruits 5.57-13.22 mm, the width of fruits 0.98-11.00 mm, and the...

This scientific work was aimed to evaluate the antioxidant potential of aromatic plants of Thymus spp. in the East of Ukraine. These plants are known as medicinal and food around the world. All antioxidant parameters were investigated spectrophotometrically: total content of polyphenols (TPC), the total content of phenolic acids (TPAC), the total c...

Within the framework of the Convention on the Conservation of Biodiversity and the implementation of the program “Agrobiodiversity for the improvement of nutrition, health and quality of life” by joint research of the Department of Acclimatization of Fruit Plants of the M. M. Gryshko National Botanical Garden of the National Academy of Sciences of...

It is known that a polymorphic population consisting of a large number of genotypes adapts more rapidly to the environment conditions. The availability of a large gene pool predetermines the success of the introduction and further breeding of new cultivars with economically valuable features. Morphometrics is a classical tool for studying the ampli...

The honeysuckle (Lonicera caerulea L.) belonging to the Caprifoliaceae family, has been used for a long time in Chinese, Japanese and Russian folk medicine. Nowadays, the fruits of honeysuckle are becoming more and more popular also in Europe – mainly in Poland, Slovenia, the Czech Republic, and Slovakia because of valuable medicinal properties and...

Allium vegetables belong to the most widespread and commonly grown vegetables in Slovakia. In this study, we dealt with the content of selected heavy metals (Zn, Mn, Cr, Cu, Ni, Pb, and Cd) in cultivated garlic (Záhorský, Lukan, Makoi), onion (Amika, Red Matte, Diamant), and leek (Bavaria, Golem, Tango). We determined the total content of heavy met...

У тезах ідеться про передумови створення, цілі, завдання та результати реалізації міжнародного проєкту «SAVE BEES. Save endangered bees to improve nutrition, health and quality of life». Проєкт було реалізовано впродовж 2019-2020 років за участі 13 країн. Основною метою проєкту було: створити інтелектуальний та інституційний потенціал міжнародної п...

Applied two preparations of alginite formed from natural bituminous rock alginite in 4 different variants into the soil (granular forms) and spraying on leaves (extracts) in 2 cultivars of Solanum lycoper-sicum L. resulted in reduced production traits on plants and fruits, increased or decreased accumulation of macro and microelements content in pl...

Echinocystis lobata (Mich.) Torr. et Gray extracts were investigated for their bioactive compounds and their potential for natural antioxidant properties. In vitro antioxidant activity of methanol, ethanol, and water extracts were evaluated by 1,1-diphenyl-picrylhydrazyl (DPPH) radical scavenging activity. Total phenolic content (TPC) and total fl...

Capsicum chili peppers are popular vegetables in Slovakia. They provide a supply of health-promoting substances, but contaminated vegetables can pose a serious health risk to the people who consume them. Therefore, the aim of this study was to determine the content of heavy metals (Mn, Zn, Cr, Cu, Ni, Cd, Pb and Hg) in the soil as well as in select...

The publication aims to present some knowledge about the less-known but at the same time very scarce bituminous rock alginite with comprehensive practical use in the form of a brief overview. Alginite is an organic-bituminous rock that was formed about six million years ago from dead fossil algae Botryococcus braunii Kütz and diatoms in the area of...

The studying of Castanea sativa Mill. pollen allows us to determine the details of morphological characteristics and described the most important parameters and pollen sculpture that can be used to identify representatives of species. The general characteristics and significant morphological traits of pollen grains of 16 genotypes Castanea sativa M...

An international team of scientists continues to study the resource potential of non-conventional or little-utilized plants. Pawpaw (Asimina triloba (L.) Dunal) fruit (pulp and peel) and seeds were analyzed for their nutritional compositions. Seeds exhibited significantly higher levels of crude protein, lipid, and vitamin E (11.82 %, 34.0 %, and 20...

The fruits of Cornus mas and Cornus officinalis have been known and appreciated in folk medicine for years and have a high biological value, which is mainly connected with their polyphenols and iridoids content. However, hybrids of C. mas × C. officinalis have not been investigated. The aim of this study was to evaluate the iridoids, anthocyanins,...

The chemical composition of pollen and honey primarily depends on the botanical and geographical origin of the species, as well as other factors – climatic conditions, soil type, plant species, etc. The present study was to knowledge the biochemical profile of pollen, staminate catkins, and honey samples of Castanea sativa Mill. which were examined...

Pseudocydonia sinensis (Thouin) C. K. Schneid. less known plant species in the Ukraine conditions, but the fruits were widely used in traditional Chinese medicine for the treatment of asthma, colds, sore throat, mastitis, rheumatoid arthritis, and tuberculosis. The content of protein, ash, and lipids in the seeds was found to be greater than in the...

Background. The search for new plant raw material as a potential source of antioxidants is still ongoing. This study aimed to evaluate the antioxidant and antimicrobial capacity of the plant raw material of Crambe spp. during vegetation. Materials and methods. The free radical scavenging activity and molybdenum reducing power of the extracts were u...

Background: The search for new plant raw material as a potential source of antioxidants is still ongoing. This study aimed to evaluate the antioxidant and antimicrobial capacity of the plant raw material of Crambe spp. during vegetation. Methods: The free radical scavenging activity and molybdenum reducing power of the extracts were used to dete...

Background: Economically important vegetables are a strong source of antioxidants with different characteristics. Capsicum L. (pepper) is an important agricultural plant because of its economical, medicinal, and nutritional values. Methods: This study aimed to test antioxidant parameters in the fruits of 9 cultivars of Capsicum annuum L. (CA 01-...

Diversity of Sambucus nigra pollen within Slovakia in selected morphological characters by SEM study. Biosystems Diversity, 28(4), 399-404. doi:10.15421/012051 This study analyzed pollen morphology and characteristics of 20 Sambucus nigra L. genotypes from populations of various ecotypes and geographical localities from the territory of Slovakia....

Sweet chestnut (Castanea sativa Mill.) as an introduced species in Slovakia is the object of our research in terms of morphometric analysis of fruits from randomly selected 30 genotypes from the repository Príbelce with presence of old varieties, biennial seedlings of intraspecific and interspecific hybrids and individuals from free pollination fro...

Pseudocydonia sinensis (Thouin) C.K. Schneid. less known plant species in the Ukraine conditions, but the fruits were widely used in traditional Chinese medicine for the treatment of asthma, colds, sore throat, mastitis, rheumatoid arthritis, and tuberculosis. In this study, chemical compositions of the leaves of Pseudocydonia sinensis were investi...

Solidago canadensis L. was introduced to Europe as an ornamental plant from North America in 1645 and began to spread during the XIX-XX centuries. Nowadays the species is considered the most aggressive invasive species. On the other hand, S. canadensis is considered to be a medicinal plant. The raw material known as Herba Solidaginis includes herbs...

The aim of the research is the determination of the total antioxidant activity and the content of phenolic compounds of the leaves of 12 species of non-traditional plants, namely, Amelanchier alnifolia (Nutt.) Nutt. ex M. Roem., Aronia mitschurinii A.K. Skvortsov & Maitul., Castanea sativa Mill., Chaenomeles japonica (Thunb.) Lindl., Cornus mas L.,...

Background: Sea buckthorn is a good and possible source of a wide range of bioactive compounds with a positive effect on the human body, especially polyphenols and carotenoids. Methods: The present study aimed to evaluate the antioxidant and antimicrobial activities of Hippophae rhamnoides L. products - 100% oil, 100% juice, dry berries, and tea...

Chokeberry (Aronia Medik.) is a non-traditional fruit plant known as a rich source of biologically active compounds and inhibits the numerous biological activities. We compared the antioxidant activity and phenolic compounds of fruits between widely cultivated Aronia mitschurinii (AM-TCH, from Tchekhov district; AM-D, from Dmitrov district; AM-OZ,...

Background: Neglected and underutilized plant species could serve as a valuable source of natural bioactive compounds. The objective of this study was to evaluate the biological activity of Chinese quince (Pseudocydonia sinensis Schneid) genotypes of Ukrainian and Slovak origin. Methods: The content of the total antioxidant activity (DPPH method...

The plant raw material of Galega officinalis L. (goat's rue) and Galega orientalis Lam. (fodder galega) investigated in this study. These species are known as fodder crops with high productivity of green mass and as medicine plants. The current study was aimed to evaluate an accumulation in dry raw of selected plants the total content of phenolic a...

The study of the adaptability of alien plant species is very important. According to this characteristic there is possible to forecast their further spreading in the secondary distribution range. This is especially relevant for the species having already "escaped" from cultivation and started actively invading the natural communities. Well known th...

The paper is devoted to the study of the allelopathic properties of the root environment of Castanea sativa Mill. plants of different ages under the conditions of introduction. The objects of the research were 10 and 40-year-old plants of C. sativa, which are growing in Forest-Steppe of Ukraine in M.M. Gryshko National Botanical Garden of National...

Objective-to evaluate the antioxidant potential of ethanol extracts of wild selected plants in conditions of M.M. Gryshko National Botanical Garden of the NAS of Ukraine through the determination of phenolic compounds. Material and methods. In this study used dried raw of Cichorium intybus L., Lamium purpureum L. and Viscum album L. Plants of C. in...

The aim of the research is the determination of the total antioxidant activity and the content of phenolic compounds of the leaves of 10 species of non-traditional plants, namely, Amelanchier alnifolia (Nutt.) Nutt. ex M. Roem., Aronia mitschurinii A.K. Skvortsov & Maitul., Castanea sativa Mill., Cornus mas L., Diospyros kaki L., Diospyros lotus L....

The aim of this study was to determine the variability of morphometric characters of fruits of L. caerulea. Reaction norm of fruit’s characters is very high, this was the base for the creation of many cultivars in the Russian Federation. The results obtained in M.M. Gryshko National Botanical Garden of NAS of Ukraine (NBG) will help us to select th...

The aim of the study was to determine total antioxidant activity (DPPH and phosphomolybdenum method) and the content of phenolic compounds of the fresh fruits and jellies made from one species (Actinidia chinensis Planch Cornus mas L., Diospyros virginiana L., Chaenomeles japonica (Thunb.) Lindl. Ex Spach, Lonicera caerulea L., Mespilus germanica L...

Pollen grain structure is one of the diagnostic taxonomic and phylogenetic parameters. Study of morphology and morphometry of pollen grains of Amelanchier spp. allows found new additional diagnostic parameters of species. The aim of this study was to compare the morphological parameters of pollen grains of the five species of Amelanchier spp. Polle...

The aim of this study was to evaluate antioxidant capacity of Scutellaria baicalensis Georgi from two regions of Ukraine: Kyiv city (M. M. Gryshko National Botanical Garden of NAS of Ukraine (NBG)) and Kherson region (Experimental Facility "Novokakhovska" of Rice Research Institute of Ukrainian Academy of Agrarian Sciences (EFN of RRI)). Observatio...

Sixteen ethanolic extracts were obtained from seven different bee bread samples. The total flavonoid content in the extracts was determined by aluminium-chloride method and was in the range of 8.3 mg/L ± 6.24% to 195.3 mg/L ± 1.35% and 28.8 mg/L ± 19.33% to 603.3 mg/L ± 4.64% with reference to quercetin and rutin, respectively. The relative standar...

The phytochemical characteristics of alien species have not yet been fully studied. Meanwhile, the reserves of their raw materials in the secondary distribution range are very large and can be used as new sources of functional ingredients for food, nutraceuticals, cosmeceuticals, and medicines. Particular attention is attracted by species which hav...

The genus Aubrieta Adans. includes 12-24 species naturally distributed in South-West Asia (mainly in Anatolia) and in South and Southeast Europe. Most of these species grow in mountain, subalpine and alpine altitudinal belts. The most common is A. deltoidea (L.) DC. It has long been known as a garden ornamental plant in Western Europe and in other...

The aim of the work was to determined the basic morphological and morphometric traits of rugosa rose (Rosa rugosa Thunb.) and antiradical activity of fruit pulp canned in different kind of honeys and in beverages prepared from honey. In experiments there were used 4 genotypes of roses originated from arboretum Mlyňany (Slovakia). The evaluation of...

The aim of our study is to determine microbial contamination, antibacterial and antioxidant activities of 14 pollen samples of Corylus avellana collected from different locations in Slovakia. Microbiological analysis was carried out in two steps: microbiological assays and studies of antibacterial activity of pollen extracts. The antimicrobial prop...

The combination of honey with tea or honey with water is one of the most traditional flavour improvement, nutrition and therapy. The aim of the study was to determine the influence of different types of honey on selected physicochemical properties of water and teas. For experi¬mental purposes, we used 50 types of polyfloral honey obtained from diff...

Pseudocydonia sinensis Schneid. (Chinese quince) fruits are an excellent source of bioactive compounds. The objective of this study was to evaluate the antioxidant activity, total polyphenol, fl avonoid, and phenolic acid content of dry Pseudocydonia sinensis fruits (peel and pulp) of collection from M. M. Gryshko National Botanical Garden (Kyiv, U...