Iryna Smetanska

Hochschule Weihenstephan-Triesdorf · Growing and Processing of Plant Products

Recently, the rising incidence of natural catastrophe has increased the disaster preparedness, aiming to mitigate its devastating effect. Developing an emergency food is one of meaningful attempts to rise the preparedness. This research aimed to determine the best formula of ready-to-eat rice in retort pouch packaging accepted by consumers, and to...

Food pairing is a method for identifying the suitability of certain foods and drinks with each other. The current study aimed to investigate how many different food items can be combined with tea as well as the characteristics of these food items. The research was conducted by stages, including an online survey of the most popular tea companion foo...

Potential of Low Cost Agro-Industrial Wastes as a NaturalAntioxidant on Carcinogenic Acrylamide Formation in PotatoFried Chips

Lycium schweinfurthii is a traditional medicinal plant grown in the Mediterranean region. As it is used in folk medicine to treat stomach ulcers, it took more attention as a source of valuable secondary metabolites. The in vitro cultures of L. schweinfurthii could be a great tool to produce secondary metabolites at low costs. The presented study ai...

In recent decades, there has been a huge level of interest in bioactive compounds from natural sources [...]

Lycium schweinfurthii is a Mediterranean wild shrub rich in plant secondary metabolites. In vitro propagation of this plant may support the production of valuable dietary supplements for humanity, introduction of it to the world market, and opportunities for further studies. The presented study aimed to introduce an efficient and reproducible proto...

Bambara groundnut has great potentials as an industrial raw material as documented by several authors. The emergence of climate change has threatened the cultivation and yield of currently commercialized legume crops indicating the need for alternative crop. This challenge has attracted the attention of researchers in search of alternative crops an...

Cancer has been recognized as a global health burden in rates of morbidity and mortality. Much effort has been devoted to discover promising cancer therapeutic agents from natural sources, and there has been some progress in introducing new anticancer drugs into the pharmaceutical market. Plant-derived natural products have played a very important...

Six honey samples from different origin were examined and compared for their physicochemical proprieties (pH, moisture content, TSS, water activity, amino acid and refractive index) and antioxidant activity antioxidant content, (total phenolic and total flavonoids). In addition, colore intensityABS635, Hunter color values, lycopene, β – carotene an...

Phenolic acids represent a big group of plant secondary metabolites that can be used as food additives, nutraceuticals, and pharmaceuticals. Obtaining phenolic acids from the plant in vitro cultures provide an attractive alternative to produce high-value plant-derived products. The impact of yeast extract and jasmonic acid on the induction of defen...

Red beet (Beta vulgaris) is a swollen root, dark red–purple in color, consumed either raw as salad or further processed. Red beet gets its distinctive color due to the presence of nitrogen-containing water-soluble pigments betalains. It is widely used as a natural food colorant and labeled as E-162. Red beet is a rich source of vitamins, such as vi...

The article analyzes the productivity and economic efficiency of the cultivation of intensive type corn hybrids. It was found that the average yield is 9.6t/ha, and the level of profitability is more than 65% (for 2019-2021). It was established that the p

Background and objective: Anthocyanin is responsible for the red color of apple. Ultraviolet light plays a key role in activating the genes responsible for anthocyanin biosynthesis. However, the most important concern is using UV light irradiation on fruit to increase anthocyanins level and its nutritional quality. In this study, the accumulation...

The suitability of introduced apple varieties for processing into juices and ciders was analyzed. High-quality juices are obtained from apple varieties: Jonagold, Red Topaz, Relinda and Black Prince. Technological varieties with a high juice yield of more

Fresh cucumbers of the Asterix variety contain a low content of valuable nutrients. Higher content of biologically active substances was characterized by more formed fruits of the group of greens on average by 30-40%. To prepare high-quality and biologica

Orthosiphon aristatus Boldingh., a native tropical plant from Indonesia, is a medicinal herb that has been reported to possess an antidiabetic potential. However, study on this functional activity is limited especially on in vitro plant culture of Orthosiphon aristatus. The present study sought to investigate the effect of ultraviolet (UV) and ultr...

The grains and sprouts of colored wheat genotypes (having blue, purple and yellow colored grains) contain specific anthocyanidins, such as pelargonidin and cyanidin derivatives, that produce beneficial health effects. The objective of the presented study is to compare the antioxidant capacity and contents of bioactive phytochemicals in grains and s...

Complex of biochemical indicators modern late varieties of apples, which forming nutritional and biological value of fruits was analyzed. Calculated rating grade of the researching varieties. Florina, Champion, Radoghost, Scythian gold, Todes and Pearl of

A comparative study of the content of nitrates in some vegetable products in the winter-spring period, sold in supermarkets in Kyiv, was carried out. During the study, it was found that the concentration of nitrates in the studied vegetables is different.

Nowadays many scientific groups in the functional food area are looking for plants with high content of phytochemicals as an important source of active pharmaceuticals or with valuable nutritional properties. Buckwheat among these plants got a primer position as potential source of gluten free food products as well as rich source of antioxidant com...

Hairy root culture is a promising alternative method for the production of secondary metabolites. In this study, transformed root of Linum usitatissimum was established using Agrobacterium rhizogenes A4 strain from root cultures for lignans, phenolic acids and antioxidant capacity determination. Total lignin content (secoisolariciresinol diglucosid...

Salatmischungen in Tüten erleichtern Verbrauchern die Essenszubereitung im Alltag. Obwohl der abgepackte Tütensalat fast dreimal so viel wie unbearbeiteter Salat kostet, greift rund die Hälfte der Deutschen aus Bequem-lichkeit zu Fresh-Cut-Salaten. Der Absatz von fertigen Salatmischungen entwickelt sich in den letzten Jahren positiv. Damit diese Pr...

Beta-glucan is a branched polysaccharide whose monomers are bound by (1,3, 1,4) and (1,6) beta-glucosidic bonds and has a wide spectrum of biological activity and, above all, immunomodulating and anti-inflammatory. Beta-glucan is found in fungi, yeast, bacteria, algae. However, the isolation of beta-glucan from this raw material, both natural and o...

In the present study, the effects of the metabolite elicitors chitosan, methyl jasmonate (MeJA) and salicylic acid (SA) as well as the hairy root transformation were tested for silymarin and phenolic compound accumulation in in vitro cultures of Milk thistle. For callus induction, leaf explants were cultured on MS medium supplemented with 5 mg/l NA...

Agrobacterium rhizogenes is gaining intensity in research to develop and produce a large number of commercially important secondary metabolites, such as lignans. Worldwide, lignans are receiving great attention because of their putative beneficial effects on human health. In this study, we investigated the potential of callus and A. rhizogenes, hai...

The antioxidant activity and total phenolic contents in leaves and leaf extracts of Stevia plants grown under the different conditions of Egypt, India, Paraguay, Greece and Spain were studied. The moderate levels of total phenolics (from 5.64 to 6.45 mg mL-1) was found in Stevia leaf extracts from Egypt, India and Greece which can depend from the c...

Bee products (e.g., propolis and bee pollen) are traditional healthy foods. In this study, antioxidant properties and in vitro antibacterial activity of honeybee pollen and propolis methanol extracts were determined. Propolis with higher phenolic content showed significant greater activity over pollen extracts. Caffeic acid, ferulic acid, rutin, an...

There is increasing interest in finding new food sources to alleviate malnutrition in developing countries. Nine little known legumes (Mallotus subulatus (white variety), Cassia hirsutta, Canavalia ensiformis, Vignea subterranean (checkered variety), Vigna racemosa, Mallotus subulatus (red variety), Vignea subterranean (cream variety), Sphenostylis...

In the current study, an efficient protocol for in vitro plant regeneration and genetically transformed root induction by agrobacterium rhizogenes strain A4 was developed. Powerful response for hairy roots induction was achieved using stem explants cultured on co-cultivation half strength MS-medium containing 500 mg/l cefotaxime. Contrary leaf expl...

Artical present the develop the receipts for jams with low sugar particularly fructose content. The best result was obtained in jams with sugar alcohol erythritol, particularly in product taste (135 while for sugar 140 points) and consistence (120, while for sugar 145 points). It is conceivable that the sugar as well as particularly fructose could...

This study is focused on the selection analysis of high rutin contents in various buckwheat species and cultivars, such as Fagopyrum esculentum Moench. (Cultivars Lileya, Bilshovik, Rubra), F. tataricum G. (ssp. rotundatum (Bab) Krot. and ssp. tuberculatum Krot.), F. cymosum Meissn, and Fagopyrum giganteum Krot. Rutin contents in vegetative organs...

EINLEITUNG Kaffee ist nach Erdöl das zweitwichtigste Exportgut weltweit. Es gibt zwei wirtschaftsbedeutenden Kaffeearten – Coffea arabica und Coffea canephora (robusta). Produktion und Qualität von Arabica- und Robusta-Kaffeebohnen ist ein wichtiger Wirtschaftsfaktor sowohl in der Landwirtschaft als auch in der Lebensmittelindustrie. Dabei wird die...

Two cytochrome P450 proteins, CYP79F1 and CYP79F2, are involved in the biosynthesis of aliphatic glucosinolates (GSs) in brassicaceous species. In order to increase aliphatic GS levels in Arabidopsis thaliana hairy root cultures (HRCs) with the aim of biomanufacturing GSs, CYP79F1 and CYP79F2 from either Arabidopsis thaliana or Brassica rapa were f...

Background Effect of chlorocholine chloride (CCC) on phenolic acids composition and polyphenols accumulation in various anatomical parts (stems, leaves and inflorescences) of common buckwheat (Fagopyrum esculentum Moench) in the early stages of vegetation period were surveyed. Results Treatment of buckwheat seeds with 2% of CCC has been increased...

The effects of chitosan or a yeast extract on the production of secondary metabolites and on the induction of plant defence responses in cell suspension cultures of Malus × domestica Borkh. were investigated. Chitosan or yeast extract enhanced the production of phenolic acids by 1.5-fold and by 2.0-fold after 3 d of culture following elicitor treat...

Hairy root cultures transformed with Agrobacterium rhizogenes or undifferentiated callus cultures are used for production of plant secondary metabolites. Glucosinolates (GS) are a group of secondary metabolites that produce a variety of bioactive compounds upon hydrolysis. Several studies report the successful production of high concentrations of s...

Orthosiphon aristatus, an Indonesian medicinal plant, is normally used as a traditional herbal tea. Recently, this plant has begun to attract attention due to its antioxidant properties. However, little is known about tea fermentation effect on antioxidant properties of this plant. Thus, to extend the tea fermentation study, in vitro sprout culture...

In this study, Fagopyrum esculentum (common buckwheat) sprayed with nickel (Ni) [0, 0.5, 1.0, 3.0 and 5.0 mM] for different duration has been investigated for Ni accumulation, malondialdehyde (MDA), total phenolics and phenolic acids. Ni accumulation significantly increased in dose-dependent manner. Plants exposed for 72 h, showed visible damages a...

In the present study, the influence of three types of lactic acid bacteria (Lactobacillus plantarum ATCC 8014, Lactobacillus acidophilus NCFM, Danisco, and Lactobacillus rhamnosus GG E522 (ATCC 53103)) on antioxidant activities of fermented red cabbage sprouts was determined and compared with those of their unfermented/control counterparts. The fer...

The fresh-cut fruit and vegetable market has grown rapidly in recent years with justifiable expectations of continuous growth. On the other hand, such products are still under study in order to improve the quality, safety, and, in particular, the shelf life of the products to fulfill consumers’ expectations. Numerous applications of recent science...

The effects of heavy metal ions (Co(2+), Ag(+), Cd(2+)) on cell viability and secondary metabolite production, particularly anthocyanins and phenolic acids in Vitis vinifera cell suspension cultures, were investigated. Of these, Co at all three used concentrations (5.0, 25, and 50 μM), Ag, and Cd at low concentration (5.0 μM) were most effective to...

The food-processing industry generates substantial quantities of phenolic-rich by-products that could be valuable natural sources of antioxidants. In this study, the antioxidant properties and total phenolic and flavonoid contents of three industrial by-products (potato peels, sugar beet pulp, and sesame cake) extracted with different solvents were...

In vitro shoot culture of Orthosiphon aristatus was selected as a model system for lactic acid bacteria (LAB) fermentation study. This in vitro plant was subjected to different types of LAB fermentations (Lactobacillus plantarum ATCC 8014 and Lactobacillus acidophilus NCFM) for a different time periods of 24, 48, and 72 h at 37oC. The LAB fermentat...

Red beet plants are rich in betalains that can be used as food natural colorants. Betalains were extracted from red beet and encapsulated with different carrier agents and freeze or spray dried. Effect of different encapsulating agents as maltodextrin, guar gum, gum Arabic, pectin and xanthan gum with different concentration (as encapsulating agent...

Green tea is a derivative of Camellia sinensis a tea plant native to many countries in Asia (China, India, and Japan). Depending on harvesting and handling of the plant material of Camelia sinensis we distinguish between several types of green tea. These types have different oxidization grade which forms the different antioxidant properties of the...

The influence of fermentation, natural and inoculated by two types of lactic acid bacteria (Lactobacillus plantarum ATCC 8014 and Lactobacillus acidophilus, NCFM), on antioxidant properties of red cabbages was determined and compared with those of their unfermented counterparts. Fermentation led to increased antioxidant activity, which was measured...

Cited By (since 1996):2, Export Date: 18 October 2014

Although some study have established hairy root cultures from brassicaceous plants with glucosinolates (GS) as characteristic secondary metabolite, studies are missing which compare hairy roots with the corresponding mother plants. Therefore, two different plant species-Sinapis alba and Brassica rapa subsp. rapa pygmeae teltoviensis-were transforme...

Vitis vinifera c.v. Muscat de Frontignan (grape) contains various high valuable bioactive phenolic compounds with pharmaceutical properties and industrial interest which are not fully exploited. The focus of this investigation consists in testing the effects of various biological elicitors on a non-morphogenic callus suspension culture of V. vinife...

High rosmarinic acid (RA) productivity has been achieved by applying jasmonic acid and yeast extract elicitors to the in vitro sprout culture of Orthosiphon aritatus (IOSC). The highest RA accumulation from three solvents was detected in IOSC after treatment with yeast extract (5 g/L). HPLC analysis clearly confirmed a drastic increase in RA subjec...

In vitro cultivation of Orthosiphon aristatus sprout culture (IOSC) allows harvest of this plant at any situation regardless climates condition and seasons. In addition, a rapid growth can be combined with sustainable secondary metabolisms. In this study, the antioxidant activities (AAs) of methanol, ethanol, and water extracts of IOSC using elicit...

This study was carried to evaluate the effect of drought and salt dtress on accumulation of phenolic, flavonoids and flavonols compounds in in vitro cultured sprouts of garden cress plant. Drought stresses were induced by supplementation of culture medium with different levels of polyethylene glycol (PEG) and mannitol and NaCl was used in various c...

Red beet is a rich source of phenolic acids and has high antioxidant capacity. Effect of and different processing methods (microwave, vacuum, boiling, roasting and germination) on phenolic acid (HPLC) content and antioxidant activity of red beet were studied. The measured antioxidant activity included free radical scavenging activities against DPPH...

Common buckwheat (Fagopyrum esculentum Moench) is recognized as a healthy food in many countries because it is nutrient-rich crop. This experiment was conducted to investigate the antioxidant activity and production of phenolic acids from hairy cultures of roots, leaves and stems of Common buckwheat. In these cultures, a large amount of chlorogenic...