Florence Alexandra Tóth

Mrs. Florence Alexandra Tóth

orcid

Research Focus & Metrics

Academic Career Length

6Years (2021-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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10 February 2025 in Foods
Verified
Journal Article
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WAWalaa Alibrahem
Walaa Alibrahem
Duyen H. H. NguyenDuyen H. H. Nguyen
Duyen H. H. Nguyen
NHNihad kharrat Helu
Nihad kharrat Helu
FTFlorence Alexandra Tóth
Florence Alexandra Tóth
Peter NagyPeter Nagy
Peter Nagy
COCsaba Zsolt Oláh
Csaba Zsolt Oláh
Allyl isothiocyanate (AITC) is a low-molecular-weight natural chemical predominantly obtained from the autolysis of sinigrin, a glucosinolate found in cruciferous vegetables like mustard, horseradish, and wasabi. AITC has sparked widespread interest due to its various biological actions, which include strong antioxidant, anti-inflammatory, antibacterial, and anticancer capabilities. This compound offers promising potential in several fields, particularly in food preservation, medicine, and enhancing food quality through natural means. AITC’s effectiveness against a broad spectrum of microorganisms, including foodborne pathogens and spoilage agents, makes it an attractive natural alternative to synthetic preservatives. The potential to extend the shelf life of perishable foods makes AITC an important tool for food production, meeting rising customer demand for natural additives. In addition to its antimicrobial effects, AITC demonstrates significant anti-inflammatory activity, reducing levels of pro-inflammatory cytokines and modulating key signaling pathways, which could make it valuable in managing chronic inflammatory conditions. Furthermore, emerging research highlights its potential in cancer prevention and treatment, as AITC has been demonstrated to induce apoptosis and inhibit cell increase in several cancer cell lines, offering a natural approach to chemoprevention. This review delves into the chemical structure, metabolism, and bioavailability of freshly produced AITC, providing a comprehensive overview of its beneficial properties. Challenges related to AITC’s volatility, dosage optimization, and regulatory considerations are also discussed, alongside future research directions to enhance the stability and efficacy of AITC-based formulations. The findings underscore AITC’s role as a versatile bioactive compound with known potential to support human health and the sustainable food industry.

19 July 2021 in Agriculture
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Journal Article
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EGEdit Gorliczay
Edit Gorliczay
BIBoczonádi Imre
Boczonádi Imre
NKNikolett Éva Kiss
Nikolett Éva Kiss
FTFlorence Alexandra Tóth
Florence Alexandra Tóth
SPSándor Attila Pabar
Sándor Attila Pabar
JTJános 21 Tamás
János 21 Tamás
Due to the intensification of the poultry sector, poultry manure is being produced in increasing quantities, and its on-site management is becoming a critical problem. Animal health problems can be solved by stricter the veterinary and environmental standards. The off-site coupled industrial chicken manure recycling technology (Hosoya compost tea) fundamentally affects the agricultural value of new organic-based products. Due to the limited information available on manure recycling technology-related microbiological changes, this was examined in this study. A pot experiment with a pepper test plant was set up, using two different soils (Arenosol, slightly humous Arenosol) and two different doses (irrigation once a week with 40 mL of compost tea: dose 1, D1; irrigation twice a week with 40 mL of compost tea: dose 2, D2) of compost tea. Compost tea raw materials, compost tea, and compost tea treated soils were tested. The products (granulated manure, compost tea) and their effects were characterized by the following parameters: aerobic bacterial count (log CFU/g), fluorescein diacetate activity (3′,6′-diacetylfluorescein, FDA, µg Fl/g soil), glucosidase enzyme activity (GlA; PNP/µmol/g), and identification of microorganisms in compost tea with matrix-assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-TOF MS). Furthermore, we aimed to investigate how the microbiological indicators tested, and the effect of compost tea on the tested plant, could be interpreted. Based on our results, the microbiological characteristics of the treated soils showed an increase in enzyme activity, in the case of FDA an increase +0.26 μg Fl/g soil at D1, while the GlA increased +1.28 PNP/µmol/g with slightly humous Arenosol soil and increased +2.44 PNP/µmol/g at D1; and the aerobic bacterial count increased +0.15 log CFU/g at D2, +0.35 log CFU/g with slightly humous Arenosol and +0.85 log CFU/g at W8. MALDI-TOF MS results showed that the dominant bacterial genera analyzed were Bacillus sp., Lysinibacillus sp., and Pseudomonas sp. Overall, the microbial inducers we investigated could be a good alternative for evaluating the effects of compost solutions in soil–plant systems. In both soil types, the total chlorophyll content of compost tea-treated pepper (Capsicum annuum L.) had increased as a result of compost tea. D1 is recommended for Arenosol and, D2 for slightly humous Arenosol soil.

9 September 2025 in Soil Systems
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FZFehér Zsolt Zoltán
Fehér Zsolt Zoltán
Tamás MagyarTamás Magyar
Tamás Magyar
FTFlorence Alexandra Tóth
Florence Alexandra Tóth
Peter NagyPeter Nagy
Peter Nagy
Monitoring the concentration of heavy metals in urban soils is of a paramount importance for several reasons. These inorganic pollutants can pose a significant health risk to living organisms, as they are toxic even at low concentrations and can be present in the soil for a long period of time. This study assesses the spatial distribution, concentration levels, and potential anthropogenic and natural sources of eight typical heavy metals (As, Cd, Co, Cr, Cu, Ni, Pb and Zn) occurring in urban surface soils across Debrecen, Hungary. A total of 295 topsoil samples were collected; heavy metal concentrations were determined by energy-dispersive X-ray fluorescence (EDXRF) spectrometry. The results were interpreted using descriptive statistics, correlation analysis, hierarchical clustering, factor analysis, ordinary kriging interpolation, and spatial-discriminant analysis. The dual origin of the metal contaminants was revealed: As, Co, Pb, and Zn showed strong anthropogenic signatures associated with traffic, urban waste, and construction materials, whereas Cr and Ni were associated with natural geogenic sources. Cd reflected both lithogenic and point-source urban pollution. The current evaluation incorporated Hungarian and Dutch regulatory benchmarks to identify exceedances of environmental quality thresholds. It was found that only Cd and Cr exceeded the Hungarian target values, on average. Linear discriminant analysis based on pollution maps highlighted contamination hotspots around traffic corridors and newly industrialized zones. The importance of high-resolution soil monitoring in the rapidly urbanizing city is highlighted. Given its anticipated industrial and transportation developments, accumulations of heavy metals are probably going to be further exacerbated; therefore, the results provide a critical baseline for future environmental assessments and long-term monitoring.

27 October 2025 in Pharmaceutics
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Gréta TörősGréta Törős
Gréta Törős
Hassan Ragab El-RamadyHassan Ragab El-Ramady
Hassan Ragab El-Ramady
Duyen H. H. NguyenDuyen H. H. Nguyen
Duyen H. H. Nguyen
WAWalaa Alibrahem
Walaa Alibrahem
NHNihad kharrat Helu
Nihad kharrat Helu
Prokisch JózsefProkisch József
Prokisch József
Antimicrobial resistance (AMR) poses an escalating global health crisis, projected to cause up to 10 million deaths annually by 2050. Conventional antibiotics are increasingly ineffective due to microbial adaptation, overuse, and disruption of gut microbiota. Nanotechnology offers promising alternatives, but traditional nanoparticle synthesis often relies on toxic chemicals and energy-intensive processes. This review explores mushroom-derived nanoparticles (myco-NPs) as sustainable, eco-friendly antimicrobials. Edible and medicinal mushrooms contain bioactive compounds, including polysaccharides, flavonoids, and proteins, that act as reducing and stabilizing agents in nanoparticle biosynthesis. Myco-NPs exhibit antimicrobial activity through membrane disruption, oxidative stress, immune modulation, and biofilm inhibition, while also demonstrating synergistic effects with antibiotics and potential roles in regulating the gut microbiota. Recent advances highlight their potential applications in medicine, food safety, and environmental protection. However, challenges remain regarding standardization, safety evaluation, and large-scale production. We emphasize interdisciplinary collaboration as essential to translating mushroom-based nanotechnology into effective clinical and industrial solutions.

14 February 2024 in Horticulturae
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FTFlorence Alexandra Tóth
Florence Alexandra Tóth
Tamás MagyarTamás Magyar
Tamás Magyar
JTJános 21 Tamás
János 21 Tamás
Peter NagyPeter Nagy
Peter Nagy
Extreme weather and the declining organic matter content of soils cause serious sustainability problems in agriculture. Therefore, soil conditioner composites (chicken manure, bentonite and super absorbent polymer) were developed and tested in an integrated apple orchard characterized by poor nutrient and water management to study their effects on soil, leaf and fruit attributes. Composites with higher doses of additives increased soil organic carbon by 4–9 g/kg, and organic nitrogen by 1.8–2.8 g/kg compared to the control (p < 0.05). Similarly, soil nitrate content steadily increased from 8–10 mg/kg to 30–38 mg/kg by composites. Composites effectively elevated leaf N, K, Ca, and Mg while not affecting the leaf P (p < 0.05). Treatments significantly enhanced the yields by 14–63% on average compared to the control. Treatments with bentonite improved the fruit weight by 2% and 24% compared to the chicken manure. On average, composite treatments increased the titratable acidity of fruits by 26–43% compared to the control and 0.5–10% compared to the treatment containing solely chicken manure. Overall, the developed organic-based composites are able to cope with changing circumstances that could help mitigate the negative effects of climate change, especially in arid areas, thus contributing to sustainable nutrient management.

1 June 2024 in Soil Science Annual
Verified
Journal Article
Open access
FTFlorence Alexandra Tóth
Florence Alexandra Tóth
Tamás MagyarTamás Magyar
Tamás Magyar
JTJános 21 Tamás
János 21 Tamás
Peter NagyPeter Nagy
Peter Nagy
Self-developed soil conditioner composites containing fermented chicken manure as a raw material alongside bentonite and super-absorbent polymer in different doses and combinations were tested in a 112 day long soil incubation experiment. This study aimed to determine their effects on soil N mineralization, and the changes in the amount of soil mineralized nitrogen forms, cumulative mineralized nitrogen (Nmin), and C/N ratio in a sandy soil (Lamellic Arenosol) at two different soil water holding capacity (SWHC) levels and soil layers. Potentially mineralized nitrogen (PMN), net mineralization rates (NMR), and nitrification rates (NNR) were also calculated to study the effectiveness of treatments. Soil NH4-N decreased by 50-70% while NO3-N increased by 150-200% in the treated soil, so the NO3-N and NH4-N ratio changed from 1/3 to 2/1 during the incubation. Nmin gradually increased and was described by a linear tendency (R≥0.99) for both soil layers and SWHC levels. Composite treatments increased significantly the PMN, and NMR values by 2-4 times and NNR values by 40-240% compared to the control. Applied composites enhanced the mineralized proportion of total nitrogen content by 2-6%. It was found that the composites were more effective at lower SWHC level and in their application layer than chicken manure alone. Overall, the developed organic-based composites are able to cope with changing soil conditions, which can help mitigate the negative effects of climatic anomalies, especially in arid areas with limited water resources by improving soil nutrient supply, thus contributing to sustainable nutrient management.