Browsing by Author "Pecio, Monika"

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    Chelate-induced accumulation of rare earth elements in plants grown on soil and ash-based growing media
    (Instytut Uprawy Nawożenia i Gleboznawstwa - Państwowy Instytut Badawczy w Puławach, 2025) Gmur, Dominika; Siebielec, Grzegorz; Pecio, Monika
    Phytoextraction is a phytoremediation technique that uses plants to remediate contaminated areas. The aim of the study was to investigate the differences between the use of two doses of chelate (5 mM and 10 mM): CA, EGTA, and EDTA on three se-lected plant species which grew on two substrates (soil with increased REE content, ash). The study focused on the following rare earth elements (REE) representatives: lanthanum (La), cerium (Ce), europium (Eu), and gadolinium (Gd). Three plant species were included in the study: common yarrow (Achillea millefolium L.), red clover (Trifolium pratense L.) and autumn fern (Dryopteris eryth-rosora (D.C.Eaton) Kuntze). The plant were grown on two substrates, the main components of which were soil with increased REE content and ash. Plant samples, divided into aboveground part and underground part, were analyzed by ICP-MS. The obtained REE concentrations in plant tissues ranged from 0.02 to 60.20 mg kg−1 (La), 0.05 to 62.22 mg kg−1 (Ce), 0.01 to 45.91 mg kg−1 (Eu), and 0.02 to 63.60 mg kg−1 (Gd). To determine the ability of plants to phytoextract REE, two factors were calculated: the translocation factor (TF) and the bioconcentration factor (BCF). The highest TF value was obtained for D. erythrosora and A. millefolium, when they were grown on substrate with ash. In the experiment, the BCF index value was not higher than 1. In general, the effect of chelates on REE accumulation was plant-specific. The application of CA resulted in the most efficient REE accumulation by plants.
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    Effect of the addition of water extract from guelder rose (Viburnum opulus) flowers on physicochemical and sensory properties of veal burgers
    (Elsevier, 2026) Kowalczyk, Marek; Domaradzki, Piotr; Florek, Mariusz; Materska, Małgorzata; Żółkiewski, Paweł; Skałecki, Piotr; Teter, Anna; Kaliniak-Dziura, Agnieszka; Pecio, Monika; Dmoch, Małgorzata; Poleszak, Ewa
    The use of plant extracts is gaining increasing popularity among both food producers and consumers. Extracts can impart health-promoting properties and improve the antioxidant properties of food products, while stabilising sensitive compounds can positively extend the shelf life of food. The objective of the study was to assess the effect of the addition of water extract from guelder rose flowers (GRE) at concentrations of 0.05%, 0.1% and 0.4% on the physicochemical properties (pH, water activity, texture, colour, lipid oxidation - TBARS, α-tocopherol content), sensory properties (beef aroma, off-odours, juiciness, tenderness, beef flavour, off-flavours) and overall quality of veal burgers stored refrigerated for 15 days. Burgers containing 0.1% and 0.4% GRE showed a significantly lower pH (on average, 5.56 in both GRE treatments vs. 5.61 in control samples) and higher purge loss after 10 days (2.39% and 2.90%, respectively, vs. 1.00% in control samples) and 15 days of storage (3.04% and 3.80%, respectively, vs. 1.22% in control samples; P < 0.05). The addition of the extract, irrespective of its concentration, slowed down lipid oxidation and significantly increased α-tocopherol retention (2.15–2.21 μg/g in GRE treatments vs. 1.83 μg/g in control samples; P < 0.05). However, at concentrations of 0.1% and 0.4%, it worsened the sensory properties while increasing the intensity of off-odours and off-tastes, thus lowering the overall quality rating (on average, 6.75 and 5.75, respectively, vs. 7.37 in control samples; P < 0.05). Among the tested GRE levels, a concentration of 0.05% was associated with the most favourable overall outcomes, without significant negative effects on water-holding capacity or sensory characteristics (P > 0.05), while improving α-tocopherol retention and reducing TBARS values. The use of water extract from guelder rose flowers at an appropriate concentration can improve the shelf life and oxidative stability of burgers without adversely affecting their water-holding capacity and sensory quality.
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    Variability in Nutrient Content and Biochemical Parameters of Soil Under Rotational Pasture Management of Farmed Fallow Deer
    (Agriculture, MDPI, 2024-11-08) Futa, Barbara; Ukalska-Jaruga, Aleksandra; Tajchman, Katarzyna; Janiszewski, Paweł; Pecio, Monika
    Fallow deer are animals kept on large-scale pastures, which influence soil properties, including the content of nutrients in the soil and the flow of these nutrients in the soil–plant–animal system. Therefore, the aim of this case study was to analyze the variability in the macronutrient content and biochemical properties of soil under rotational grazing conditions of farmed fallow deer. Fallow deer grazed in two summer pens from April to November, and in the winter pen from December to March. The analyses included the determination of several soil parameters to capture sensitive soil changes and assess potential degradation of the soil environment in response to grazing: pHKCl, TOC, TN, N-NO3, N-NH4 +, total (P, K, Mg, Ca, and Na) and available (Pav, Kav, Mgav) forms of macronutrients, and selected soil enzymes (dehydrogenase, acid phosphatase and alkaline phosphatase, and urease). The results showed that the pHKCl in the plots used by farm fallow deer was lower than in the soil of the control object. Moreover, the TN and TOC content in the soils of all pastures was statistically significantly lower than in the soil without grazing, while for TOC, the same effect was observed in the winter pasture soil. The content of N-NO3 − was several times higher than that of N-NH4+ in the soils of the studied breeding plots. The relationships noted indicate that grazing is important in the transformation of soil organic matter, which is influenced by the relationship between carbon and nitrogen. In addition, the grazing of farmed fallow deer had a negative effect on the content of P in the soils of all pastures and a positive impact on the accumulation of K. Winter grazing had a positive effect on the amount of Pav and Kav in the soil, but a negative effect on the content of Mgav, compared to grazing in the summer quarters. In the plots used for pastures, the activity of soil enzymes was higher than in the control soil. It has been shown that the influence of fallow deer farming on the soil environment of pastures is not unequivocal. Therefore, long-term monitoring of changes in the properties of these soils is necessary.