Małgorzata Kowczyk-Sadowy

Małgorzata Kowczyk-Sadowy
Bialystok University of Technology

About

20
Publications
5,870
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215
Citations
Citations since 2017
13 Research Items
164 Citations
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2017201820192020202120222023010203040
2017201820192020202120222023010203040

Publications

Publications (20)
Article
Full-text available
Pomace from apples, grapes, blackcurrants, and oranges is a waste product of fruit processing, which is formed during the production of juices. Pomace is a rich source of biologically active compounds such as polyphenols, carotenoids, or vitamins. They also contain pectin, cellulose, lignin, proteins, and minerals. All these components, apart from...
Article
Full-text available
Stabilized municipal sewage sludge and selected waste from agri-food processing can be used for agricultural purposes, which is part of the circular economy. Therefore, chosen residues were tested for the possibility of using them for fertilisation purposes. They were then subjected to the process of composting in a bioreactor with artificial aerat...
Article
W 10 próbkach mięsa drobiowego (świeżego, pieczonego, gotowanego lub liofilizowanego), pochodzących ze sklepów spożywczych oznaczono zawartość azotanów(III) i azotanów(V). Próbą referencyjną było mięso drobiowe z hodowli domowej. Najmniejszą zawartość azotanów(III) i azotanów(V) stwierdzono w mięsie pochodzącym z wiejskiej (własnej) hodowli drobiu....
Article
Full-text available
The aim of the described research was to assess the suitability of onion husk waste as a material for the production of solid fuels in the form of granules (pellets). Due to the low susceptibility to thickening of onion husks, the addition of a binder in the form of potato pulp was used (waste with a high starch content). Both wastes were subjected...
Article
Full-text available
The aim of the presented research was to determine the suitability of cherry stones as a solid fuel. Mixtures of cherry stones with the addition of 10%, 15%, and 20% rye bran as a binder were subjected to the pressure agglomeration process in a rotary matrix working system (170, 220, and 270 rpm). The density of pellets, their kinetic durability, a...
Conference Paper
Full-text available
The research aim of this study was to assess the suitability for pellet production of bakery industry waste in the form of "sponge flour" in a mix with peanut postproduction sweepings (20%, 30%, 40%, 50%). An increase in the content of peanuts (from 20% to 50%) in the mix was shown to increase the power demand of the pelleting system and the physic...
Article
A potato pulp was mixed with shredded couch grass rhizomes (size of pieces below 4 mm, humidity 9.1%) in proportions 15–25% by mass, than compacted and granulated to obtain a fodder additive. The granulator demand for elec. power, kinetic strength of granules, their d. and the content of phenolic compds. were detd. The increase of potato pulp conte...
Article
H2O activity, contents of phenolic compds. and vitamin C as well as caloric value of pomace of 3 Polish apple varieties after drying by various methods at temp. 23–55°C as well as before drying were detd. to assess the suitability of the waste for food and energy applications. The drying resulted in reducing the contents of phenolic compds. and asc...
Article
Full-text available
The study evaluates granulated coffee grounds use as an additive to soil. Specific physico-chemical and functional properties of soil that enable assessment of its fertility and that have a possible impact on plants growth and development were analysed. The research proved that granulated coffee grounds added to soil increase sorption properties an...
Article
The biological activity of chemical compounds depends on their molecular structure. In this paper molecular structure of 3-hydroxyphenylacetates in comparison to 3-hydroxyphenylacetic acid was studied. FT-IR, FT-Raman and NMR spectroscopy and density functional theory (DFT) calculations was used. The B3LYP/6-311++G(d,p) hybrid functional method was...
Article
The structural and vibrational properties of lithium, sodium, potassium, rubidium and cesium homovanillates were investigated in this paper. Supplementary molecular spectroscopic methods such as: FT-IR, FT-Raman in the solid phase, UV and NMR were applied. The geometrical parameters and energies were obtained from density functional theory (DFT) B3...
Article
The aim of this study was to analyze changes in the content of selected polycyclic aromatic hydrocarbons (PAHs) in urban soils fertilized with municipal sewage sludge. The factors in the experiment were three lawns along the main roads in Bialystok (in Popieluszki, Hetmanska and Raginisa Strs.), doses of sewage sludge (0 - control; 75 and 150 Mg/ha...
Article
Full-text available
This work is a continuation of research on a correlation between the molecular structure and electronic charge distribution of phenolic compounds and their biological activity. The influence of lithium, sodium, potassium, rubidium and cesium cations on the electronic system of trans o-coumaric (2-hydroxy-cinnamic) acid was studied. We investigated...
Article
The estimation of the electronic charge distribution in metal complex or salt allows to predict what kind of deformation of the electronic system of ligand would undergo during complexation. It also permits to make more precise interpretation of mechanism by which metals affect the biochemical properties of ligands. Theinfluence ofsodium cation on...
Article
Manganese(II), copper(II) and cadmium(II) complexes of p-coumaric acid (p-hydroxycinnamic acid) were synthesized. Their composition was established by means of elementary and thermogravimetric analysis. To study the molecular structure of synthesized compounds many miscellaneous analytical methods, which complement one another, were used: infrared...
Article
Full-text available
The evaluation of the electronic charge distribution in metal complexes enables more precise interpretation of mechanism by which particular metal ions affect biochemical properties of ligands [J. Inorg. Biochem. 99 (2005), 1407–1423, J. Mol. Struct. 919 (2009), 284–289]. In this paper we investigated the influence of alkali metal cations (lithium,...
Article
Full-text available
The evaluation of the electronic charge distribution in metal complexes enables more precise interpretation of mechanism by which particular metal ions affect biochemical properties of ligands [J. Inorg. Biochem. 99 (2005), 1407–1423, J. Mol. Struct. 919 (2009), 284–289]. In this paper we investigated the influence of alkali metal cations (lithium,...

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