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1

Physicochemical properties of cesium chromate and ferrate : experimental and first-principles insights for severe accident source-term modeling

Amelia Almira Citra, Ngarayana I Wayan, Suprayoga Edi, Saragi Elfrida, Andryansyah, Chinh Nguyen Ba Vu, Xinrun Chen, Mulyana Dany

Nukleonika

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2026

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Vol. 71, No. 1

17--26

EN

Reliable thermodynamic data for cesium compounds are essential to predict fission products behavior during severe nuclear reactor accidents. This study establishes the physicochemical properties of cesium chromate (Cs2CrO4), cesium ferrate (Cs2FeO4), and its decomposition product CsFeO2 through combined experimental and first-principles approaches. High-purity samples were synthesized by solid-state reaction and characterized using powder X-ray diffraction (XRD), thermogravimetric–differential scanning calorimetry (TG-DSC), and in-situ high-temperature XRD measurements up to 1050°C. First-principles DFT and quasi-harmonic phonon calculations provided complementary insights into vibrational and electronic properties. Cs2CrO4 crystallizes in an orthorhombic Pnma structure and undergoes one-step decomposition at temperatures of about 950°C. Cs2FeO4 exhibited a rapid dehydration at about 97°C, transformed to CsFeO2 starting from 170°C, transiently reabsorbed oxygen at a temperature range of 400°C to 800°C, and finally decomposed to Fe2O3 above 1086°C. The computed heat capacities reproduced the experimental Cp up to 750 K (476.85°C), while the imaginary phonon modes reveal dynamic instabilities in ferrate phases. An electronic-structure analysis revealed band gaps of about 3.0 eV for Cs2CrO4 and about 1.2 eV for Cs2FeO4, while CsFeO2 displays metallic behavior. By linking these results to severe accident scenarios, this work clarifi es how decomposition thresholds, phase stability ranges, and redox sensitivity of cesium compounds govern their volatility, transport, and deposition in reactor containment. The validated dataset provides critical input for source-term databases (e.g., ECUME – effective chemistry database of fission products under multiphase reaction) and severe accident codes such as MELCOR and ASTEC, thereby improving the predictive accuracy of cesium release and radiological safety assessments.

2

Węglowe materiały adsorpcyjne z pozostałości po ekstrakcji nadkrytycznej róży pomarszczonej do oczyszczania gazów i cieczy

Wierzba Martyna, Paluch Dorota, Bazan-Woźniak Aleksandra, Pietrzak Robert

Wiadomości Chemiczne

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2025

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[Z] 79, 3-4

199--214

PL

The present study demonstrates that the waste material resulting from the supercritical extraction of Rosa rugosa can serve as a cost-effective precursor for the production of carbon adsorbents, which exhibit excellent sorption capacities for gaseous and liquid pollutants. The mineral content of the adsorbents is reduced by direct activation in both microwave and conventional furnaces in comparison to the mineral content of the raw material. The activated carbons obtained contain less than 4.8% ash, with the mineral content increasing in line with the activation temperature. Furthermore, surface chemistry analysis revealed that all samples exhibit basic functional groups, whose concentration rises with temperature. The adsorbents show limited efficiency in hydrogen sulfide removal, with improved performance in humid conditions. It was found that many of the carbons produced demonstrated strong adsorption capabilities for liquid-phase pollutants, with the most effective adsorbent for iodine, methylene blue, and Eriochrome Black T being the sample activated at 800°C in a conventional furnace. Conventional heating methods were found to yield higher sorption capacities in comparison to microwave activation techniques.

3

Usuwanie wybranych składników zawartych w kosmetykach przy pomocy adsorbentów węglowych otrzymanych z kory dębu

Żuberek Karolina, Wolski Robert, Paluch Dorota, Pietrzak Robert

Wiadomości Chemiczne

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2025

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[Z] 79, 5-6

297--317

4

Skuteczne usuwanie barwników organicznych za pomocą biowęgli otrzymanych z pozostałości po ekstrakcji nadkrytycznej nasion marchwi

Zieliński Damian, Paluch Dorota, Bazan-Woźniak Aleksandra, Wolski Robert, Pietrzak Robert

Wiadomości Chemiczne

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2025

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[Z] 79, 3-4

181--198

EN

The continuous development of the food, pharmaceutical, and chemical industries has led to increasing environmental pollution. Stricter legal regulations concerning air and water quality have intensified the search for more effective purification methods. Surface waters used for consumption are heavily contaminated by industrial and municipal wastewater discharge. The study presents the preparation, physicochemical properties, and adsorption capacities of activated carbons derived from residues of supercritical extraction of carrot seeds. The carbonization process led to a reduction in volatile matter and a significant increase in mineral content compared to the raw material. Acid-base analysis revealed variations in oxygen functional groups, with physically activated carbons displaying basic character and chemically activated ones showing acidic properties. The findings suggest that carrot seed extraction residues can serve as a cost-effective raw material for producing efficient carbon-based adsorbents for liquid-phase pollutant removal.

5

Metale ziem rzadkich : niezbędne pierwiastki technologii jutra

Czaja Małgorzata

Wiadomości Chemiczne

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2025

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[Z] 79, 11-12

1044--1064

EN

Rare earth elements (REE) are a group of 17 elements, including the lanthanides as well as scandium and yttrium, characterized by unique physicochemical properties arising from their electron configuration and the presence of 4f orbitals. This article presents the classification of REE, their occurrence in nature, physicochemical properties, and processing and recycling technologies, highlighting environmental and technological challenges. The significance of REE in modern technologies - such as electronics, renewable energy, automotive, magnetic materials, and catalysis - is discussed. The article also addresses the market situation and availability of these elements, emphasizing the need for sustainable extraction and recycling methods to ensure resource security and support technological development.

6

Wpływ promieniowania jonizującego na właściwości materiałów stosowanych jako wizjery środków ochrony indywidualnej

Pawełczyk Elżbieta, Gozdek Tomasz, Klajn Katarzyna, Leszczyńska Milena, Płocińska Magdalena, Okrasa Małgorzata, Majchrzycka Katarzyna

Przemysł Chemiczny

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2025

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T. 104, nr 7

724--730

PL

Zbadano wpływ promieniowania jonizującego na właściwości fizyczno- -chemiczne materiałów stosowanych jako wizjery w środkach ochrony indywidualnej (ŚOI) stosowanych przez straż pożarną w sytuacjach zagrożenia radiacyjnego. Badano zmianę przepuszczalności światła, rozpraszania światła, mikrotwardości, struktury chemicznej oraz morfologii powierzchni poliwęglanowych wizjerów poddanych różnym dawkom promieniowania gamma i beta. Określono właściwości termiczne na podstawie wyników analizy TGA. Zwiększenie dawki promieniowania prowadziło do istotnych zmian właściwości optycznych i mechanicznych wizjerów, co może wpływać na ich skuteczność ochronną i bezpieczeństwo użytkowników. Zmiany te są jednak szczególnie widoczne przy większych dawkach, sugerując konieczność regularnej oceny wizjerów użytkowanych w środowisku promieniowania.

EN

56 Samples cut from polycarbonate (PC) visors used in personal protective equipment used by firefighters in radiation hazard situations were exposed to gamma and beta radiation (doses of 1, 10 and 100 kGy). Changes in light transmittance, light diffusion, microhardness, chem. structure and surface morphol. of the PC visors were studied. Thermal properties were detd. based on the results of TGA. Increasing the radiation dose led to significant changes in the optical and mech. properties of the visors, which may affect their protective performance and user safety. These changes were particularly pronounced at higher doses, suggesting the need for regular assessment of visors used in radiation hazard environments.

7

Właściwości wytrzymałościowe mas ceramicznych do produkcji kruszyw lekkich wypalanych w atmosferze redukcyjnej i utleniającej

Panna Wojciech, Cyboroń Jarosław, Gajek Marcin, Szumera Magdalena

Kruszywa : produkcja - transport - zastosowanie

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2025

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Nr 2-3

44--51

PL

W artykule opisano badania nad możliwością optymalizacji produkcji lekkich kruszyw ceramicznych, takich jak keramzyt, z surowców ilastych dostępnych w Polsce. Skupiono się na wpływie dodatków, takich jak celuloza i węglan wapnia, oraz warunków wypalania w atmosferze utleniającej i redukcyjnej na właściwości fizykochemiczne i mechaniczne wytworzonych materiałów. Praca analizuje, jak czynniki te wpływają na temperaturę spiekania, wytrzymałość na ściskanie oraz mikrostrukturę kruszyw, wskazując na możliwość obniżenia temperatury wypału i poprawy parametrów użytkowych kruszyw lekkich, co ma znaczenie zarówno technologiczne, jak i ekologiczne.

EN

The article describes studies on the possibility of optimising the production of lightweight ceramic aggregates, such as expanded clay, made from clay raw materials available in Poland. It focuses on the influence of additives like cellulose and calcium carbonate, as well as firing conditions in oxidising and reducing atmospheres, on the physicochemical and mechanical properties of the produced materials. The paper analyses how these factors affect the sintering temperature, compressive strength, and structure of aggregates, indicating the potential to lower the firing temperature and improve the functional parameters of lightweight aggregates, which is significant both technologically and environmentally.

8

Vertical profiles of physicochemical properties and nutrients in mangrove and non-mangrove sediments of the small islands of Bali, Indonesia

Andiani Anak Agung Eka, Prartono Tri, Rastina, Sunuddin Adriani

Ecological Engineering & Environmental Technology

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2025

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Vol. 26, iss. 9

92--108

EN

Coastal sediments play a dual role in biogeochemical processes, both as a medium for substance storage and transformation, and as a natural archive, recording the historical traces of environmental change, including possible changes in mangrove coverage and species composition. This study is to disclose the mangrove zone in modifying the biogeochemical characteristics of sediments. The 50 cm sediment cores were collected at three stations representing variations in mangrove and non-mangrove stand structure and analyzed in various layers. Grain size, color, pH, salinity, oxidation-reduction potential (ORP), organic carbon (C-organic), total nitrogen (TN), ammonium (NH4+), nitrite (NO2-), nitrate (NO3-), phosphate (PO43-), and total phosphorus (TP) were measured from the concerned layers of sediments. The results revealed that gradual decreases in pH, ORP, C-organic, and nutrient concentrations in mangrove sediment profiles were observed, suggesting chemical processes associated with increasing anoxic/reducing conditions in deeper layers. In contrast, those in the non-mangrove sediments apparently varied. Principal component analysis (PCA) demonstrated clear spatial segregation among stations. Mangrove sediments were characterized by fine-grained sediments, higher C-organic, and enriched nutrient profiles, whereas coarser textures, alkaline conditions, and low nutrient concentrations were observed in the non-mangrove sediments. Different profiles of sediment properties across these distinctive zones were also identified. These weaker associations with any dominant parameter were probably related to the influence of sparse stand structure, simple mangrove morphology, and dynamics of site hydrology. These findings highlight the critical role of mangrove in biogeochemical processes to form and modify properties of the physico-chemical sediment, and possibly the ecological function of coastal environments.

9

Study of ecosystem edaphic components in the tailings storage of a decommissioned sulfur mining enterprise

Nahursky Oleg, Vykhivska Kateryna, Krylova Halyna, Vasiichuk Viktor, Nahursky Andriy, Bogatov Oleg, Kachan Stepan, Pavlenko Olena, Orobchuk Oksana

Ecological Engineering & Environmental Technology

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2025

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Vol. 26, iss. 4

70--75

EN

The study examined the abiotic components of the ecosystem within the tailings storage facility of a decommissioned sulfur mining enterprise located in the territory of the “Roztochia” Biosphere Reserve. An assessment of the physicochemical properties of the surface soil layer was conducted, including density, solid phase density, porosity, actual acidity, humus content, and elemental composition. It was found that the studied soils are characterized by low porosity (41.56%), an almost complete absence of humus, and high concentrations of sulfur (28.55%) and calcium (68.83%). These characteristics create unfavorable conditions for the formation of vegetation cover. The results underscore the necessity of remediation measures to restore natural ecosystems and biodiversity.

10

Application of aronia melanocarpa fruit powder obtained by an innovative low-temperature drying method for facial care masks

Klimaszewska Emilia, Ogorzałek Marta, Korolska Natalia, Tomasiuk Ryszard

Scientific Journal of Gdynia Maritime University

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2024

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nr 130

63--75

EN

The purpose of the study was to develop recipes and create skin care masks based on Aronia Melanocarpa Fruit Powder, obtained by an innovative low-temperature drying method, and to evaluate the physicochemical and functional properties of such products. It was noted that as the concentration of fruit powder in the tested formulations increased, the value of dynamic viscosity increased, while the yield point decreased. It was found that an increase in the concentration of plant powder in the formulation caused a change in the saturation and hue of the analysed masks towards red and yellow. After application of the developed masks to the skin, TEWL decreased, with the lowest value recorded for the mask with the highest concentration (0.5%) of Aronia Melanocarpa Fruit Powder.

11

Wpływ właściwości mineralnego oleju silnikowego na efektywność operacyjną gazowych systemów kogeneracyjnych

Kalwar Adam, Pytel Krzysztof, Filipek Roman, Kurdziel Franciszek

Przemysł Chemiczny

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2024

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T. 103, nr 11

1341--1349

PL

Przedstawiono obserwacje wynikające z eksploatacji silników spalinowych stosowanych w przemyśle energetycznym jako stacjonarne agregaty prądotwórcze. Na podstawie zgromadzonych danych zaprezentowano przykłady diagnostyki właściwości oleju silnikowego. Przeprowadzono analizę oraz opisano wybrane właściwości analizowanego oleju mineralnego, a także dokonano oceny efektywności stosowania wybranych olejów w kontekście eksploatacji badanego silnika gazowego.

EN

An anal. of operating data of combustion engines used as stationary power generators in the energy industry was carried out. Diagnostic procedures for the properties of mineral engine oil during operation were discussed. The anal. included the compon. and phys. chem. properties of engine oil, such as the presence of elements, kinetic viscosity, acid and base no., as well as aging processes (oxidn. and nitration). Correlation anal. was carried out for the analyzed parameters, using the Pearson coeff. and Spearman rank correlation. It indicateed many relationships between elements and chem. indicators, which may be important in the study of contamination, oil degrdn. and operating processes.

12

Otrzymywanie wosków poliolefinowych w procesie termicznej degradacji. Część 2, Wpływ struktury surowca na właściwości wosku polietylenowego

Kowalska Justyna, Grzymek Marek, Czaja Krystyna

Przemysł Chemiczny

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2024

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T. 103, nr 3

368--374

PL

Gatunki polietylenów dużej gęstości (HDPE), małej gęstości (LDPE) oraz linowych polietylenów małej gęstości (LLDPE) wytypowane na podstawie wcześniej wykonanych badań molekularno-strukturalnych i termicznych poddano procesowi termicznej degradacji w ustalonych warunkach w kierunku uzyskania wosków polietylenowych. Otrzymane produkty poddano szczegółowej analizie, a uzyskane wyniki porównano z odpowiednimi wynikami uzyskanymi dla użytych surowców. Na tej podstawie przedyskutowano mechanizm tworzenia wosków polietylenowych w procesie termicznej degradacji poliolefin.

EN

Polyolefin waxes were produced by thermal degrdn. of high-d. low-d. and linear low-d. polyethylenes and studied for their structure by IR spectroscopy with Fourier transformation. The structures were compared with structures of resp. raw materials. The thermal degrdn. was confirmed as an efficient method for prodn. of polyolefin waxes.

13

Soil Study and Identification of Plant Species Growing Near Two Thermal Springs (Ain El Haouamed and Ain Hamra) in the Eastern Region of Morocco

Mouchane Mohamed, Hazyoun Zineb, Taybi Hanan, Assem Najat, Bargach Kaoutar

Journal of Ecological Engineering

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2024

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Vol. 25, nr 7

212--223

EN

In order to deepen our understanding of the ecosystems around thermal springs and contribute to their preservation and enhancement, our study focused on the physico-chemical analysis of soils located in the immediate vicinity of two thermal springs Ain El Haouamed (S1) and Ain Hamra (S2) in the eastern region of Morocco. At the same time, we identified the plants that thrive in these areas and have developed specific adaptations to particular environmental conditions. The results of physico-chemical soil analyses revealed distinct characteristics. Around the f irst thermal spring (S1), the soil has a sandy loam texture, while around the second spring (S2), a clayey loam texture. The pH of both soils is slightly basic. In terms of organic matter, significant variations were observed between soil samples taken in these areas. Electrical conductivity and other physico-chemical parameters showed variable values. A study of the vegetation near the thermal springs shows the presence of (Matricaria chamomilla, Juncus acutus, Carex sylvatica) at site 1 and (Tamarix gallica, Inula viscosa, Phragmites australis, Typha angustifolia) at site 2. This information will certainly contribute to a better understanding of these specific thermal ecosystems. The present study has led to the identification of several plant species of great interest, representing an important advance in our knowledge of the biodiversity of these areas. These results can also be used to develop strategies for the preservation and sustainable management of these particular ecosystems.

14

Characterization of Landfill Leachate and their Toxic Effects on Germination and Seedling Growth of Various Plant Species – A Case Study

Taha Rima Saed, Alkassasbeh Jaffar Y.M., Alharbi Omar M.L., Bouqellah Nahla A., Sweity Amer, Jumanah D. Al-Shawabkeh

Journal of Ecological Engineering

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2024

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Vol. 25, nr 11

335--353

EN

Leachate generated from landfills contains many toxic contaminants, such as dissolved organics, inorganic salts, ammonia, and heavy metals, which impact the surrounding environmental systems. This study characterized the AL-Mufarrihat Sanitary Landfill (MSL) leachate in Al-Medinah Al-Munawwarh (MM) province, Saudi Arabia, by analyzing important physicochemical parameters. Phytotoxicity was assessed using various higher plant bioassays, namely, cucumber (Cucumis sativus L.), tomato (Lycopersicum esculentum L.), cabbage (Brassica oleracea var. capitata L.), and corn (Zea mays L.). The effective concentration of seed germination represented by EC50 was calculated using a USEPA computer program based on Finney’s Probit analysis method. Selected phytotoxicity test endpoint parameters, namely relative seed germination (RSG), relative root elongation (RRE), and germination index (GI) were determined. The tested leachate exhibited low concentrations of heavy metals, whereas high levels of chemical oxygen demand (COD) and ammonia nitrogen (NH3-N) were recorded. The mean EC 50 values for MSL leachate exposed to B. oleracea, L. esculentum, C. sativus, and Z. mays were 2.66%, 3.12%, 4.27%, and 5.22%, respectively. These values indicate that B. oleracea was the most sensitive bioassay, whereas Z. mays was the least sensitive. All tested bioassays showed severe phytotoxic responses to the exposed higher leachate concentrations, represented by complete inhibition for RSG, RRE, and GI. Lower leachate concentrations exhibited stimulatory effects on RSG, whereas RRE and GI were hindered, even at these lower concentrations. The results revealed that although RSG and RRE were effective and promising parameters in phytotoxicity evaluation, GI was the most responsive parameter for phytotoxicity assessment. The high levels of organic and inorganic compounds in the leachate are likely the primary cause of the phytotoxicity observed in the bioassays. The results of this study highlight the pollution potential of landfill leachate in Saudi Arabia and will furnish supplementary reference information for hazard assessment and future leachate management.

15

Trwałość i badania fizyko-chemiczne tynków elewacyjnych

Bochen Jerzy

Inżynier Budownictwa

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2024

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nr 6

78--83

16

A comparative study on selected physical properties of diesel-ethanol-dodecanol blends

Krzemiński Artur, Jaworski Artur, Kuszewski Hubert, Woś Paweł

Combustion Engines

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2024

|

R. 63, nr 1

99--105

EN

The article presents findings of the comparative analyses of the selected physicochemical parameters of diesel fuel and diesel-ethanol blends with the addition of dodecanol, used to stabilise the blend Diesel fuel and the blends were tested for density, flash point, and cold filter plugging point. The physicochemical properties were assessed in seven samples with different proportional volumes of ethanol contained in diesel fuel. Homogeneous blends were produced by adding 5% dodecanol to blends containing between 5% and 30% ethanol. The study was conducted to assess the selected physicochemical properties of diesel-ethanol blends with the addition of dodecanol and to compare the obtained results with the requirement of EN590:2022-08.

17

Physicochemical properties of water in the Nida valley, Poland

Phan Cong Ngoc, Strużyński Andrzej, Kowalik Tomasz

Archives of Environmental Protection

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2024

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Vol. 50, no. 2

42--54

EN

The investigation of Nida Valley water aimed to assess fluctuations in physicochemical properties. In this study, environmental monitoring method was utilized to evaluate the changes in physicochemical properties of water. Over a 24-month period, from June 2021 to May 2023, a total of 228 water samples were collected from 10 sampling sites, with a monthly sampling frequency. Statistical analyses were utilized including the Shapiro–Wilk test (α = 0.05), Kruskal–Wallis test and Wilcoxon (Mann–Whitney) rank sum test (α = 0.05), Pearson correlation analysis (α = 0.001) and principal component analysis (PCA). Statistical analyses revealed significant differences between months in GW samples for for temperature, dissolved oxygen, pH, total nitrogen, total phosphorus, chloride, manganese, and zinc in GW samples and for T and DO in SW samples. Pearson correlation coefficient analysis (α = 0.001) identified strong positive correlations within the SW dataset. Similarly, significant positive correlations were observed among the GW dataset. Noteworthy positive correlations were also detected between the GW and SW datasets. Principal component analysis (PCA) revealed a substantial dissimilarity between GW2 samples compared to others, characterized by elevated manganese, iron, and Sulfate content. Two distinct groups emerged: Group 1 included samples at GW1, GW2, GW3, GW5, and SW2, while Group 2 comprised all other samples. This study demonstrated the stability in the physicochemical properties of SW and underscore a discernible correlation between the hydrochemical compositions of both SW and GW in the riparian area. Outstanding characteristics in hydrochemical component of sample waters have been indicated.

18

Influence of perfluorodecalin content on the properties of blood substitute

Mystkowska Joanna, Prokopczyk Gabriela, Łysik Dawid

Acta Mechanica et Automatica

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2024

|

Vol. 18, no. 4

714--720

EN

Blood is a vital part of our circulatory system. It is responsible for transporting oxygen and nutrients, regulating body temperature, and fighting infections. However, any imbalances in blood composition or disruptions in the blood production process can affect the body's overall functioning. Anemia is one of the most common blood diseases diagnosed worldwide. It is characterized by a deficiency of red blood cells or hemoglobin, which reduces the body's ability to transport oxygen. To address this issue, researchers are developing blood substitutes with artificial oxygen carriers that can replace or support the natural function of red blood cells in oxygen transport. Perfluorocarbon-based oxygen carriers (PFCs) such as perfluorodecalin (PFD) are promising for treating severe blood disorders because they can deliver O2 to tissues in various conditions. PFCs have higher storage stability than other oxygen carriers due to their bilayer sphere structure. In this study, we aimed to explore the effects of different concentrations of PFD (1%wt., 2%wt.) and storage time (7, 14, 21, 28 days) on the properties of blood substitutes, including its physicochemical (pH, surface tension, electrolytic conductivity, contact angle, redox potential, oxygen content) and rheological characteristics. The results show that the PFD concentration did not have a statistically significant effect on most of the tested properties, except for the oxygen content, which was higher for the 2%wt. solution after 28 days of incubation. The incubation time significantly impacts the change in surface tension, contact angle, redox potential, and oxygen content. The obtained results are essential due to the use of perfluorodecalin in medicine as an oxygen carrier.

19

FTIR fingerprint — testing a new representation of the binary fingerprint based on FTIR spectra in the prediction of physicochemical properties

Tomaszewski Kacper, Kurczab Rafał

Science, Technology and Innovation

|

2023

|

Vol. 17, no. 1-2

9--29

EN

The paper deals with the development of a new method for the generation of binary fingerprints based on the Savitzky-Golay (SG) algorithm and first-order derivatives of FTIR spectra, which are then used to create prediction models for selected the physicochemical properties of chemical compounds. Models based on the FEDS (Functionally- Enhanced Derivative Spectroscopy) transformation and raw spectra were used as a reference to determine whether the use of the SG filter and first-order derivatives was worth to further develop. The FTIR spectra of 103 compounds with theoretically determined values of logP, logD and logS were studied. The Tanimoto coefficient and correlation coefficient were used to compare the fingerprints obtained, while the root mean square error (RMSE) was used to assess the quality of the prediction models. Based on the results, it was found that the use of the SG filter and derivatives had a positive effect on the quality of the prediction models for logP and logS, and a negative effect on the quality of the models for logD, compared to the models based on original spectra and FEDS transformation.

20

Wpływ rodzaju techniki obróbki kulinarnej na jakość filetów z karpia (Cyprinus carpio) pokrytych powłoką furcelleranowo-żelatynową

Modzelewska-Kapituła Monika, Tkacz Katarzyna, Mozolewski Wacław, Zduńczyk Weronika, Malczyk Ewa, Szulc Marta, Ziomek Agata

Przemysł Spożywczy

|

2023

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T. 77, nr 4

30--34

PL

Celem pracy było określenie wpływu rodzaju techniki obróbki cieplnej, kulinarnej na właściwości fizykochemiczne, odżywcze i sensoryczne filetów z karpia (Cyprinus carpio) pokrytych aktywną powłoką furcelleranowo-żelatynową z dodatkiem ekstraktu z rozmarynu. Filety karpia, po naniesieniu powłoki, poddano: (i) pieczeniu w piecu konwekcyjno-parowym w środowisku pary wodnej, (ii) obróbce sous vide, (iii) pieczeniu w piekarniku w papilotach z folii aluminiowej oraz (iv) smażeniu w oleju rzepakowym w panierze z mąki ryżowej. Dokonano pomiarów parametrów barwy, składu chemicznego (zawartości wody, białka, tłuszczu i popiołu), cech tekstury oraz przeprowadzono ocenę organoleptyczną. Stwierdzono, że zastosowanie obróbki cieplnej zmodyfikowało barwę i skład chemiczny filetów w porownaniu do filetów surowych. Stwierdzono, że występują różnice we wpływie poszczególnych technik obróbki cieplnej na skład chemiczny, teksturę i barwę filetów. Obróbką kulinarną, pozwalającą na uzyskanie najbardziej pożądanych cech sensorycznych filetów karpia, było smażenie i może być ono rekomendowane jako metoda obróbki cieplnej filetów karpia pokrytych powłoką furcelleranżelatyna rybna z ekstraktem z rozmarynu.

EN

The study aimed to determine the effect of the type of culinary heat treatment technique on the physicochemical, nutritional and sensory properties of carp fillets (Cyprinus carpio) covered with an active furcellaran-gelatine coating with the addition of rosemary extract. After coating carp fillets, were subjected to: (i) heating in a convection-steam oven in a steam environment, (ii) sous vide processing, (iii) roasting in the oven in aluminium foil paper cases, and (iv) frying in rapeseed oil in batter from rice flour. Colour parameters, chemical composition (content of water, protein, fat and ash), texture characteristics were measured and organoleptic evaluation was carried out. It was found that the use of heat treatment modified the colour and chemical composition of fillets compared to raw fillets. It was found that there were differences in the effect of individual heat treatment techniques on the chemical composition, texture and colour of the fillets. The culinary treatment that allowed to obtain the most desirable sensory characteristics of carp fillets was frying and it can be recommended as a method of thermal treatment of carp fillets coated with furcelleran-fish gelatine with rosemary extract.