@article{MTMT:34836449, title = {Antibacterial activity of Hungarian varietal honeys against respiratory pathogens as a function of storage time}, url = {https://m2.mtmt.hu/api/publication/34836449}, author = {Radványi, Lilla and Balázs, Viktória Lilla and Kocsis, Béla and Csikós, Eszter and Ángyán, Virág Diána and Szabó, Péter and Biró, Viktória and Kocsis, Marianna and Farkas, Ágnes}, doi = {10.1038/s41598-024-60961-3}, journal-iso = {SCI REP}, journal = {SCIENTIFIC REPORTS}, volume = {14}, unique-id = {34836449}, issn = {2045-2322}, abstract = {Today, antibiotic therapies that previously worked well against certain bacteria due to their natural sensitivity, are becoming less effective. Honey has been proven to inhibit the biofilm formation of some respiratory bacteria, however few data are available on how the storage time affects the antibacterial effect. The activity of black locust, goldenrod, linden and sunflower honeys from three consecutive years (2020, 2021, 2022) was analyzed in 2022 against Gram-negative (Haemophilus influenzae, H. parainfluenzae, Pseudomonas aeruginosa) and Gram-positive (Streptococcus pneumoniae) bacteria using in vitro microbiological methods. After determining the physicochemical parameters of honey, broth microdilution was applied to determine the minimum inhibitory concentration of each honey type against each bacterium, and crystal violet assay was used to test their antibiofilm effect. The possible mechanism of action was explored with membrane degradation test, while structural changes were illustrated with scanning electron microscopy. Honeys stored for one or two years were darker than fresh honeys, while older honeys had significantly lower antibacterial activity. The most remarkable inhibitory effect was exerted by linden and sunflower honeys, and P. aeruginosa proved to be the most resistant bacterium. Based on our results, honey intended for medicinal purposes should be used as fresh as possible during a treatment.}, year = {2024}, eissn = {2045-2322}, orcid-numbers = {Csikós, Eszter/0000-0002-5368-9492; Farkas, Ágnes/0000-0002-8590-3203} } @article{MTMT:34832995, title = {Changes in the Carotenoids of Zamia dressleri Leaves during Development}, url = {https://m2.mtmt.hu/api/publication/34832995}, author = {Murillo, Enrique and Nagy, Veronika and Menchaca, Dania and Deli, József and Agócs, Attila}, doi = {10.3390/plants13091251}, journal-iso = {PLANTS-BASEL}, journal = {PLANTS-BASEL}, volume = {13}, unique-id = {34832995}, abstract = {It has been observed that the leaves of some Zamia species undergo a kind of “reverse ripening”; that is, they change from their original brown color to green during development. We assumed that this strange color change was due to the change in carotenoid composition, so we followed the changes for several weeks. The detailed carotenoid composition and content at different stages of development of the leaves was determined with HPLC-DAD focusing on the changes in red and yellow carotenoids. The total and relative amounts of red and yellow carotenoids were determined simultaneously from one measurement from a saponified and/or unsaponified extract. At the beginning of development, the concentration of red carotenoids was higher than that of the yellow ones; it decreased drastically until 22 days and continued to decrease slowly until they completely disappeared. The concentration of yellow carotenoids decreased at the beginning as well, but after 22 days it started to increase. The amount of red carotenoids started to decrease when the leaflet stopped growing. Lutein is the main component in old leaflets, which is not a red carotenoid precursor. Red carotenoids can always be found in their esterified form in the leaves. These findings support the hypothesis that red and yellow carotenoid accumulation are independent and probably have different functions in the leaflet. The strange color change was explained based on the compartmentalization of red and yellow carotenoids and on the changing activity of the enzyme capsanthin–capsorubin synthase responsible for the synthesis of red carotenoids capsorubin and capsanthin.}, year = {2024}, eissn = {2223-7747}, orcid-numbers = {Nagy, Veronika/0000-0002-9019-7980; Deli, József/0000-0002-0625-6117} } @CONFERENCE{MTMT:34814487, title = {A gesztenyeméz biofilm képződést gátló hatása}, url = {https://m2.mtmt.hu/api/publication/34814487}, author = {Koloh, Regina and Farkas, Ágnes and Balázs, Viktória Lilla and Kocsis, Béla}, booktitle = {Absztraktkötet: XII. Interdiszciplináris Doktorandusz Konferencia = Book of Abstract: XII. Interdisciplinary Doctoral Conference}, unique-id = {34814487}, year = {2024}, pages = {87-87}, orcid-numbers = {Farkas, Ágnes/0000-0002-8590-3203} } @CONFERENCE{MTMT:34814458, title = {Mi az evidenciaalapú megközelítés alapján megítélt összefüggés a Pseudomonas aeruginosa baktérium és a kakukkfű illóolaj között?}, url = {https://m2.mtmt.hu/api/publication/34814458}, author = {Nagy, Anett and Ormai, Edit and Horváth, Györgyi and Kocsis, Béla and Balázs, Viktória Lilla}, booktitle = {Absztraktkötet: XII. Interdiszciplináris Doktorandusz Konferencia = Book of Abstract: XII. Interdisciplinary Doctoral Conference}, unique-id = {34814458}, year = {2024}, pages = {86-86}, orcid-numbers = {Horváth, Györgyi/0000-0001-5344-0294} } @CONFERENCE{MTMT:34814440, title = {Hársméz, levendula illóolaj és kombinációjuk antibakteriális aktivitása}, url = {https://m2.mtmt.hu/api/publication/34814440}, author = {Ángyán, Virág Diána and Farkas, Ágnes and Kocsis, Béla and Radványi, Lilla}, booktitle = {Absztraktkötet: XII. Interdiszciplináris Doktorandusz Konferencia = Book of Abstract: XII. Interdisciplinary Doctoral Conference}, unique-id = {34814440}, year = {2024}, pages = {85-85}, orcid-numbers = {Farkas, Ágnes/0000-0002-8590-3203} } @CONFERENCE{MTMT:34814410, title = {Nozokomiális patogének és a szegfűszeg illóolaj kapcsolatának bemutatása evidenciaalapú megközelítésben}, url = {https://m2.mtmt.hu/api/publication/34814410}, author = {Ormai, Edit and Kocsis, Béla and Böszörményi, Andrea and Horváth, Györgyi and Balázs, Viktória Lilla}, booktitle = {Absztraktkötet: XII. Interdiszciplináris Doktorandusz Konferencia = Book of Abstract: XII. Interdisciplinary Doctoral Conference}, unique-id = {34814410}, year = {2024}, pages = {83-83}, orcid-numbers = {Horváth, Györgyi/0000-0001-5344-0294} } @CONFERENCE{MTMT:34795176, title = {Növényi kivonatok vizsgálata in vivo kontakt dermatisz modellben}, url = {https://m2.mtmt.hu/api/publication/34795176}, author = {Shubail, Sarah and Csikós, Eszter and Kemény, Ágnes and Jaber, Areej and Utczás, Margita and Horváth, Györgyi}, booktitle = {Abstract Book of the 7th International Cholnoky Symposium}, unique-id = {34795176}, year = {2024}, pages = {25-25}, orcid-numbers = {Csikós, Eszter/0000-0002-5368-9492; Kemény, Ágnes/0000-0002-4523-3938; Horváth, Györgyi/0000-0001-5344-0294} } @CONFERENCE{MTMT:34795108, title = {Négy gyógyszerkönyvi illóolaj antibakteriális hatásának vizsgálata a Pseudomonas aeruginosa baktériummal szemben}, url = {https://m2.mtmt.hu/api/publication/34795108}, author = {Nagy, Anett and Ormai, Edit and Horváth, Györgyi and Kocsis, Béla and Balázs, Viktória Lilla}, booktitle = {Abstract Book of the 7th International Cholnoky Symposium}, unique-id = {34795108}, year = {2024}, pages = {23-23}, orcid-numbers = {Horváth, Györgyi/0000-0001-5344-0294} } @CONFERENCE{MTMT:34795054, title = {A gesztenyeméz biofilmgátló hatása az idő függvényében}, url = {https://m2.mtmt.hu/api/publication/34795054}, author = {Koloh, Regina and Farkas, Ágnes and Kocsis, Béla and Kocsis, Marianna and Balázs, Viktória Lilla}, booktitle = {Abstract Book of the 7th International Cholnoky Symposium}, unique-id = {34795054}, year = {2024}, pages = {21-21}, orcid-numbers = {Farkas, Ágnes/0000-0002-8590-3203} } @CONFERENCE{MTMT:34795038, title = {A borsmenta illóolaj hatása kórházi környezetben előforduló patogéneken}, url = {https://m2.mtmt.hu/api/publication/34795038}, author = {Ormai, Edit and Kocsis, Béla and Böszörményi, Andrea and Horváth, Györgyi and Balázs, Viktória Lilla}, booktitle = {Abstract Book of the 7th International Cholnoky Symposium}, unique-id = {34795038}, year = {2024}, pages = {19-19}, orcid-numbers = {Böszörményi, Andrea/0000-0003-3982-7059; Horváth, Györgyi/0000-0001-5344-0294} }