Володимир Хоменчук

Володимир Хоменчук
Ternopil Volodymyr Hnatiuk National Pedagogical University · Department of Chemistry

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28
Publications
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Publications

Publications (28)
Article
The metal content (Ferrum, Cobalt, Manganese, Zinc, Copper) in water, bottom sediments and tissues of freshwater fish (carp, crucian carp, pike, perch) from small rivers of Western Podillya (Seret, Strypa, Zolota Lypa) was studied. High concentrations have been found in the water and bottom sediments of the Ferrum and Manganese, which is probably d...
Article
The content of monosaccharides in flower nectar, nectar productivity, as well as the viability of pollen of hybrids Brassica napus L. Kuga, Dk Expression, Emerald (Smaragd) and Abacus were studied. It was found that during the first and second pollen crops the most intensive germination of pollen grains occurred in Emerald (Smarahd) (75 % and 87 %,...
Article
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Lipids are a heterogeneous group of chemical compounds that are found in all animal and plant organisms and combine based on common properties. The physiological role of lipids in fish is extremely important and diverse. They perform a number of functions, including energetical, structural, regulatory and others. The authors analyzed the data in th...
Article
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The osmotic resistance of erythrocytes and the content of hemoglobin in the blood of carp (Cyprinus carpio L.) and pike (Esox lucius L.) under the action of Fe3+ ions at concentrations of 0.2 and 0.5 mg/dm3, were under study which corresponded to 2 and 5 maximum permissible concentration (MPC). The research demonstrated that increased concentration...
Article
Full-text available
The morphometric characteristics of the most common commercial fish were studied: carp – Cyprinus carpio L., pike – Esox lucius L., crucian carp– Carassius auratus gibelio Bloch. and perch – Perca fluviatilis L., two years old, with an average mass of 290–330 g., 300–350 g., 150–230 g. and 170–230 g. respectively, caught from the small rivers of th...
Article
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The soils of Ukraine have been well studied, however this did not prevent them from the intensive degradation processes. About a third of the arable land is eroded, about 20% of organic matter is lost, almost all the arable land in the subsoil is compacted, the nutrient forms of mobile phosphorus and especially calcium are significantly reduced, ca...
Article
Full-text available
Nowadays the majority of rivers in Ukraine in general and the Volyn region in particular are contaminated as environmental protection measures are not taken. The Turia and Prypiat Rivers also suffer from human activity. They have recently undergone considerable anthropogenic pressure, which caused water pollution with industrial, municipal wastewat...
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From the launched research we obtained the aggregate data, that not only confirm and broaden our concept of the important role of protein and nucleic metabolism in the processes of detoxication of heavy metals ions and formation of resistance to them, but also allow making an integral estimation of biochemical reaction of carp organism to chronic i...
Article
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The influence of ions of Manganese, Zinc, Copper and Lead in two concentrations, which corresponded to 2 and 5 MPC, on the content of free amino acids in the carp organism was studied. It is shown, that free amino acids are compounds, that are actively used in the energy supply of fish organisms. Their metabolism is one of the factors, that provide...
Article
Full-text available
The content of individual metals in carp, crucian carp, perch and pike tissues from small rivers of Western Podillya is investigated. It is shown, that for different metals there are individual patterns of accumulation in different tissues of the organism. However, the general tendencies that determine cellular transformations in fish are: tissue-s...
Article
The fractional composition of lipids in the gills, liver, kidneys and muscles in narp (Cyprinus carpio) and pike (Esox lucius) under the impact of 0.2 and 0.5 mg/dm of Fe3+ ions in water, which correspond to 2 and 5 maximal permissible concentrations, was studied. Changes in lipid content in fish tissues depended on Fe3+ ions concentration in water...
Article
The impact of elevated concentration (2 and 5 MPC) of Fe³⁺ ions in water on content of nucleic acids and proteins in liver and muscles of carp (Cyprinus carpio L.) and pike (Esox lucius L.) was studied. Metabolic activity of the nucleic acids and proteins in fishes' tissues under experimental conditions was shown to change. Mechanisms of biochemica...
Article
The changes in lipid content in the gills of carp and pike under impact of cadmium ions was studied. Toxic impact caused changes of total lipids content, individual fractions of phospholipids and their ratio.
Article
The changes of the lipids' content in mitochondrial membranes of the pike (Esox lucius) gills under elevated concentration of zinc ions were studied. Zinc ions were found to change content of individual phospholipids fractions. The role of mitochondrial phospholipids in the fish adaptation to zinc ions is discussed.
Article
Impact of the crude oil and diesel fuel on activity of succinate dehydrogenase and cytochrome-c-oxidase in the gills and liver of fish has been studied. Activity of these enzymes was shown to increase under the effect of diesel fuel, and decrease under the effect of the crude oil. Conclusion has been made that row oil is more toxic for the energy m...
Article
Impact of the oil products on activity of ATPases of the carp gills has been studied. It was stated that low concentrations of diesel oil (1, 5 MPC) had no toxic effect, moreover they increased fish survivability. Toxic effect of oil (10, 20 MPC) mainly exhibits itself as changes of the cell membranes penetrability with participation of ATPase syst...
Article
The effect of the crude oil (concentration from 5 to 30 maximum permissible concentrations (MPC)) on activity of succinate dehydrogenase, transamination enzymes and glycogen content in the tissues of carp has been studied. Suppression of the succinate dehydrogenase link of the respiratory chain was noted, which plays an important role in compensato...
Article
Effect of the crude oil and diesel fuel in the concentration from 5 to 30 MPC (maximal permissible concentration) on the activity of transamination enzymes in gills, liver and muscles of carps (Cyprinus carpio) has been investigated. It was stated, that heightened concentration of the diesel fuel in water has more toxic effect on the fishes' vital...

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