H3nota derivatives are among the most studied macrocyclic ligands and widely used for metal ion binding in biology medicine. Despite more than 40 years of chemical research on H3nota, comprehensive study its solution chemistry has been overlooked. Thus, coordination behavior with several divalent ions was detail respect to application as a chelator copper radioisotopes medical imaging therapy. In solid-state structure free ligand zwitterionic form, one proton is bound cavity through strong...

The study compares two existing microbiological inhibition tests, Screening Test for Antibiotic Residues (STAR) and Premi®Test with recently introduced Nouws (NAT) Total Antibiotics the screening of antimicrobial residues in tissues food-producing animals. In negative or positive sample classification based on growth test strain sensitive to many antibiotics sulphonamides, out 142 samples obtained from slaughterhouses retail operations, 39 yielded a result one more tests: 4 four 14 three 13...

The changes of total anthocyanins (TA) content in fruit blueberries relation to freezing duration are the aim this study. samples 21 chosen cultivars obtained from research breed station were stored polyethylene bags box at temperature -18°C. In ethanolic blueberry extracts TA contents by spectrophotometric method during time 6 months period 3 determined. Significant differences among observed confirmed. value interval was 615.8-3206.3 mg/kg. average 10 very early, resp. early 1655.8 mg/kg,...

Bryndza is a natural, white, mature and spreadable kind of cheese, since 2008, it has been manufactured in specified mountainous areas the Slovak Republic with Protected Geographical Indication. The aim this work was to provide useful information about microbial, physico‐chemical sensory characteristics bryndza, taking into consideration variabilities related traditional methods production technology three bryndza cheese varieties. Statistically significant differences were observed chemical...

The dynamic development of foreign trade is important for the stable economic position. It can be considered as a confirmation actual efficiency national economy and its ability to competitive in global economics. In this paper, we analyze main tendencies export Ukraine with Visegrad countries examine whether there relationship between level GDP volume activities these countries. It should noted that various agreements were concluded each country V4 group regarding relations. The aim paper...

Research background: In recent years, special attention has been given to the research direction regarding study of economic, social, and demographic aspects regional development. This is especially important for transition countries, including Ukraine. Despite that, there a lack studies in which interdependencies economic indicators Ukraine?s regions are investigated. Purpose article: The paper assesses relationships between selected Ukrainian (export goods per capita, foreign direct...

The of relation between chosen macro- and microelements, total polyphenol (TP) anthocyanin content (TA) antioxidant capacity (TAC) in 6 selected cultivars cranberries (Sussi, Linnea, Sanna, Runo Bielawski, Ida, Koralle) is the aim this study. influence on microelements was confirmed. Mg interval 478.3-555.2 mg/kg, K 5690-7690 Fe 10.7-29.3 Cr 0.5-0.8 Cu 3.5-5.0 mg/kg Zn 8.1-9.8 mg/kg. lowest Mg, Cr, contents were determined cultivar Ida with highest TP TA contents. observed 221.778-498.503...

Cultivar is one of the most important internal factors affecting polyphenol concentration in plants. However, influence grown locality, climate conditions and way cultivation belong to external factors. In our experiment different nitrogen doses (0 - 40 80 120 160 240 kg N.ha-1) applied form Vermikompost on total content derived antioxidant activity cv. Sorento were investigated. While 1st 5th variants determined dry mater potato tubers decreased from 399.2 70.40 mg.kg-1, 6th variant that...

The changes of vitamin C content in relation to Cd, Pb and Zn accumulation 6 potatoes varieties: very early (Junior, Impala), (Livera), middle (Agria), medium-late (Asterix, Desirée) were surveyed this work. soil used pot trial had pseudototal (in extract aqua regia

The influence of the technological processes grape processing on content hydroxycinnamic acids and volatile phenolic substances in wine was studied. method targeted oxygenation applied technology Welschriesling Chardonnay varieties. determined by gas chromatography, liquid basic analytical parameters FTIR spectrometry. must had a statistically significant effect phenolics wine. In all three monitored years (2015–2017), 4-vinylphenol 4-vinylguajacol significantly decreased. A dependence...

The paper is devoted to estimation of impact selected economic indicators (gross regional product per capita, foreign direct investment and the average monthly nominal wage regular employee) on export goods capita regions Ukraine.It based data State Statistics Service Ukraine for 2010-2015.The prepared regression model confirms that all above-mentioned have a positive trade activities at level country.Though, influence different.The results show was not statistically significant.Gross...

Abstract The aim of this study is to investigate the effects gas transit pipeline temperature on soil moisture, and yield harvest crops. area was located in village Ivanka pri Nitre (Nitra District, Southwestern Slovakia). Soil type site Orthic Brown Chernozem. Temperature transported increased range 2.07°C 3.4°C measured a depth ranging from 250 mm 350 above lines. also reduced moisture by 1.27‒3.18 percentiles weight. Yield winter wheat grown lines higher 9.40% 2004 13.06% 2006. sunflower...

This paper describes the experiment of measuring temperature and cutting force during drilling short holes without using lubricants, at constant speed, increasing shift. Measurement was performed on steel samples grade 11 523. During drilling, monitored by a thermocouple, method two foreign metals. Cutting measured strain-gauge sensor. The provides quick orientation in given issue points out to optimisation conditions. Based results, it can be stated that range temperatures size forces...

The main objective of the presented paper was analysis current state food security in world, segmentation 100 selected countries and determination its driving factors. used 27 indicators covering 5 basic areas: agricultural production, poverty, demography, economic development, environmental indicators. based on data from FAO World Bank for most recent available period, which year 2020. dimension reduced with application factor analysis, factors sufficiency were determined. result 6 factors:...

Analyzing consumer behavior in bakery product markets involves understanding the factors that influence consumers' choices and preferences when it comes to baked goods. One crucial aspect of this analysis is examining how different diseases impact consumption products, such as celiac disease, Crohn's or a low histamine diet. By incorporating these into markets, researchers can gain valuable insights individuals' preferences. This knowledge help bakeries food manufacturers develop products...

The paper looks at the life situation of Czech and Slovak seniors between 2005 2016. aim is to analyze data from national standardized surveys (EU-SILC) and, based on analyzed data, describe living conditions (an objectively measured standard poverty rate) subjective satisfaction with an emphasis in single-person households. results show a large increase number analysis households' income showed that per-member monthly for whole population was similar average households seniors, while group...

The paper is focused on the evaluation of price development raw cow milk in Slovak Republic. aim to analyse average prices Q class cow´s 2006 – 2018 and forecast trend these by June 2019. Monthly data from Market Report Milk Dairy Products issued Agricultural Information Department ATIS, as part Paying Agency, were base our information resource. These analyzed using statistical software called SAS. Box-Jenkins methodology was used model future purchase milk, designed for modeling stationary...

Although Slovakia belongs to the smallest milk producers in EU, we have bear mind importance of industry for economy Slovakia. Current expectations are that primary able produce at lowest possible price, with state support on same level as other EU states, processing companies a good purchasing price raw materials, retailers share margins and increase market Slovak dairy products last but not least consumers buy produced Milk production has profound ecological social benefit our countryside...