Jolanta Piekut

Jolanta Piekut
Bialystok University of Technology · Faculty of Civil and Environmental Engineering

About

28
Publications
5,317
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387
Citations
Citations since 2017
10 Research Items
241 Citations
20172018201920202021202220230102030405060
20172018201920202021202220230102030405060
20172018201920202021202220230102030405060
20172018201920202021202220230102030405060
Introduction
Skills and Expertise

Publications

Publications (28)
Article
Full-text available
Micronization is an emerging technology used in food production, in which the size of particles is reduced to microns in the processing of plant raw materials and by-products, thus making it an interesting research topic. Spinach stems are by-products of spinach leaf processing, but there is little information regarding their processing and possibl...
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 study was to determine the effect of the addition of black cumin (Nigella sativa L.) pressing waste (BCW) and black cumin seeds (BCS) on the properties of starch bread. The control bread was prepared from wheat starch (100%) with a gluten-free certificate, plantain husk (5%), and guar gum (2%). BCS and BCW were added between 0 and 10...
Article
Full-text available
Agri-food waste is generated at various food cycle stages and is considered to be a valuable feedstock in energy systems and chemical syntheses. This research identifies the potential and suitability of a representative agri-food waste sample (i.e., plum stones) as a solid fuel. Ground plum stones containing 10, 15, and 20 wt.% of rye bran were sub...
Article
Full-text available
Abstract This work aimed at the chemical and structural characterization of powders obtained from chestnut flower honey (HFCh) and honey with Inca berry (HBlu). Honey powders were obtained by spray drying technique at low temperature (80/50 °C) with dehumidified air. Maltodextrin (DE 15) was used as a covering agent. The isolation and evaluation of...
Article
Full-text available
This study describes the problems of managing biodegradable waste in the form of leaves in the thermochemical conversion process of waste biomass. The results of experimental studies of physicochemical properties of leaves of 4 selected tree species (i.e., oak, hazel, maple, and walnut) are shown. The study consisted of determining the energy param...
Article
Shredded couch grass rhizomes were granulated at 76–125°C and humidity 12.2–23.7% to study the process impact on the phys.-chem. properties of the granulate. The contents of phenolic acids and polyphenols were detd. by gas chromatog. The humidity of the couch grass rhizome had a significant impact on the course of its granulation process (process t...
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 aim of this study was to assess microbiological indoor air quality of selected bakeries located in the region of Podlasie. The microbiological studies were conducted in autumn in 2014 in three selected bakeries. Microbiological air counts were measured by impaction using an air sampler MAS-100 NT. The microbiological air studies, comprised the...
Article
Full-text available
The aim of this study was to determine the behaviour of strobilurin and carbocyamides commonly used in chemical protection of lettuce depending on carefully selected effective microorganisms (EM) and yeast (Y). Additionally, the assessment of the chronic health risk during a 2-week experiment was performed. The statistical method for correlation of...
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 the study was to present the dynamics of changes in the number of selected microorganisms in the rhizosphere zone of grasses two years after the application of sewage sludge. The study was conducted on four specially prepared research plots along the main roads in Bialystok. Three doses of sewage sludge were applied: 0 (control), 7.5 and...
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 synthesis of the zinc(II) complex of p-coumaric acid is described. The chemical formula of the complex as obtained from the single-crystal X-ray analysis is [Zn4(C9H7O3)8(H2O)6]·4(H2O). The compound crystallizes in the triclinic space group p-1 with one molecule in the unit cell. There are two crystallographically independent Zn(II) cations in...
Article
In many European countries apples are the fruits that are consumed in the greatest quantity. Many experiments have shown that apples possess high anti-oxidant activity, may inhibit the multiplication of cancer cells, reduce lipid oxidation, and lower cholesterol levels [1]. In this study the special Gold Milenium apple cultivar was chosen. Juices m...
Article
In this paper we investigate the relationship between molecular structure of alkali metal vanillate molecules and their antimicrobial activity. To this end FT-IR, FT-Raman, UV absorption and (1)H, (13)C NMR spectra for lithium, sodium, potassium, rubidium and caesium vanillates in solid state were registered, assigned and analyzed. Microbial activi...
Article
In this work we investigated relationship between molecular structure of alkali metal o-, m-, p-anisate molecules and their antimicrobial activity. For this purpose FT-IR spectra for lithium, sodium, potassium, rubidium and caesium anisates in solid state and solution were recorded, assigned and analysed. Microbial activity of studied compounds was...
Article
Full-text available
Selected bands of FT-IR spectra of Mg(II), Ca(II), Cu(II) and Zn(II) benzoates of both solid state and water solution, were assigned to appropriate molecular vibrations. Next evaluation of electronic charge distribution in both carboxylic anion and aromatic ring of studied compounds was performed. Classical plate tests and turbidimetry measurements...
Article
The FT-IR, FT-Raman and UV spectra of 3,5-dihydroxybenzoic and 3,5-dichlorobenzoic acids as well as lithium, sodium, potassium, rubidium, caesium 3,5-dihydroxy- and 3,5-dichlorobenzoates were recorded, assigned and compared. The theoretical geometries, Mulliken atomic charges, IR wavenumbers were obtained in B3LYP/6-311++G** level. On the basis of...
Article
The FT-IR, Raman spectra of picolinic acid as well as Fe(III), Zn(II), Cu(II), Ni(II) and Ag(I) picolinates were registered, assigned and compared. Some regularities in the spectra of studied picolinates within the regions: 1650–1340 cm−1 [ν(CC)ar, νas(COO−), νs(COO−)]; 1300–1020 cm−1 [β(CH)]; 780–620 cm−1 [γ(CH), α(CCC)] were found. 1H and 13C NMR...
Article
FT-IR and Raman experimental data were assigned to appropriate bond vibrations and used to compare the different electronic charge distributions in the aromatic rings and carboxylic anions of various lithium, sodium, potassium, rubidium and caesium o-iodobenzoates and picolinates. Then principal component analysis (PCA) was applied in order to atte...
Article
Alkaline metal, calcium and magnesium p-iodobenzoates and alkaline metal nicotinates, as well as sodium and potassium picolinic and isonicotinates were investigated by means of their antimicrobial and chemical properties. The quality estimation of the influence of metal cation coordinated to the carboxylic anion of the series of studied compounds o...
Article
The lithium, sodium, potassium, rubidium and caesium isonicotinates, potassium picolinate and nicotinate (microbiological data) as well as sodium benzoate (as a referee for microbiological tests) were under study. The selected experimental bands occurring in the FT-IR and FT-Raman spectra of studied alkaline metal isonicotinates and potassium picol...

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Project (1)
Project
The aim of the project is to improve the cultivation efficiency of the medicinal plant Rhodiola rosea L.. The method of microclonal reproduction will be used. It is used in the reproduction of rare and valuable plant species. The next goal of the project will also be the development and implementation of an innovation - Rhodiola rosea extract, standardized for the content of active substances - salidroside and rosavins. The potential of using Rhodiola Rosea extract is high. Scientific research confirms its adaptogenic effect, including neuroprotective, cardioprotective, antidepressant, anxiolytic, nootropic, increasing life expectancy and stimulating activity of the central nervous system. Clinical studies confirm that repeated administration of R. rosea extract has an anti-fatigue effect, which increases mental performance (especially the ability to concentrate in healthy people) and reduces burnout in patients with fatigue syndrome. The lack of confirmed interactions with other drugs and side effects during clinical trials make it potentially attractive for use as a safe medical product / drug. In the era of synthetic drugs, which are not always effective and may cause side effects, the search for new, natural drugs is the object of research interest all over the world. Rhodiola rosea extract can definitely be such a product and / or be used in the pharmaceutical industry for the production of drugs. The impact of the project will be not only nationwide but also international, especially in relation to countries with similar climatic conditions.