@article{MTMT:34864593, title = {A new green approach to l-histidine and β-alanine analysis in dietary supplements using rapid and simple contactless conductivity detection integrated with high-resolution glass-microchip electrophoresis}, url = {https://m2.mtmt.hu/api/publication/34864593}, author = {Pukleš, Iva and Páger, Csilla and Sakač, N. and Matasović, B. and Kovač-Andrić, E. and Šarkanj, B. and Samardžić, M. and Budetić, M. and Molnárová, K. and Marković, D. and Vesinger, A. and Jozanović, Marija}, doi = {10.1007/s00216-024-05314-9}, journal-iso = {ANAL BIOANAL CHEM}, journal = {ANALYTICAL AND BIOANALYTICAL CHEMISTRY}, unique-id = {34864593}, issn = {1618-2642}, year = {2024}, eissn = {1618-2650}, orcid-numbers = {Jozanović, Marija/0000-0002-9509-8105} } @CONFERENCE{MTMT:34846032, title = {Adalékanyagtartalmú növényi eredetű tejhelyettesítő italok fehérjetartalmának profilozása mikrofluidikai eljárással}, url = {https://m2.mtmt.hu/api/publication/34846032}, author = {Balogh-Hartmann, Fruzsina and Páger, Csilla and Bufa, Anita and Madarászné Horváth, Ibolya and Marosvölgyi, Tamás and Makszin, Lilla}, booktitle = {Absztraktkötet: XII. Interdiszciplináris Doktorandusz Konferencia = Book of Abstract: XII. Interdisciplinary Doctoral Conference}, unique-id = {34846032}, year = {2024}, pages = {117-117}, orcid-numbers = {Marosvölgyi, Tamás/0000-0002-4244-5513; Makszin, Lilla/0000-0002-9764-4763} } @article{MTMT:34188002, title = {Electrophoretic Determination of L-Carnosine in Health Supplements Using an Integrated Lab-on-a-Chip Platform with Contactless Conductivity Detection}, url = {https://m2.mtmt.hu/api/publication/34188002}, author = {Pukleš, Iva and Páger, Csilla and Sakač, Nikola and Šarkanj, Bojan and Matasović, Brunislav and Samardžić, Mirela and Budetić, Mateja and Marković, Dean and Jozanović, Marija}, doi = {10.3390/ijms241914705}, journal-iso = {INT J MOL SCI}, journal = {INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES}, volume = {24}, unique-id = {34188002}, issn = {1661-6596}, abstract = {The health supplement industry is one of the fastest growing industries in the world, but there is a lack of suitable analytical methods for the determination of active compounds in health supplements such as peptides. The present work describes an implementation of contactless conductivity detection on microchip technology as a new strategy for the electrophoretic determination of L-carnosine in complex health supplement formulations without pre-concentration and derivatization steps. The best results were obtained in the case of +1.00 kV applied for 20 s for injection and +2.75 kV applied for 260 s for the separation step. Under the selected conditions, a linear detector response of 5 × 10−6 to 5 × 10−5 M was achieved. L-carnosine retention time was 61 s. The excellent reproducibility of both migration time and detector response confirmed the high precision of the method. The applicability of the method was demonstrated by the determination of L-carnosine in three different samples of health supplements. The recoveries ranged from 91 to 105%. Subsequent analysis of the samples by CE-UV-VIS and HPLC-DAD confirmed the accuracy of the obtained results.}, year = {2023}, eissn = {1422-0067}, orcid-numbers = {Páger, Csilla/0000-0002-0031-059X; Šarkanj, Bojan/0000-0002-1567-6455; Matasović, Brunislav/0000-0002-5727-0613; Marković, Dean/0000-0002-6218-973X; Jozanović, Marija/0000-0002-9509-8105} } @CONFERENCE{MTMT:34186807, title = {Microfluidic-based protein quantification in plant- based drinks derived from nuts}, url = {https://m2.mtmt.hu/api/publication/34186807}, author = {Balogh-Hartmann, Fruzsina and Páger, Csilla and Bufa, Anita and Madarászné Horváth, Ibolya and Marosvölgyi, Tamás and Makszin, Lilla}, booktitle = {13th Balaton Symposium on High-Performance Separation Methods Book of Abstracts}, unique-id = {34186807}, year = {2023}, orcid-numbers = {Marosvölgyi, Tamás/0000-0002-4244-5513; Makszin, Lilla/0000-0002-9764-4763} } @CONFERENCE{MTMT:34186786, title = {Microfluidic analysis for determination of the protein content in legume-based plant drinks}, url = {https://m2.mtmt.hu/api/publication/34186786}, author = {Balogh-Hartmann, Fruzsina and Páger, Csilla and Bufa, Anita and Madarászné Horváth, Ibolya and Marosvölgyi, Tamás and Makszin, Lilla}, booktitle = {13th Balaton Symposium on High-Performance Separation Methods Book of Abstracts}, unique-id = {34186786}, year = {2023}, orcid-numbers = {Marosvölgyi, Tamás/0000-0002-4244-5513; Makszin, Lilla/0000-0002-9764-4763} } @article{MTMT:34167332, title = {Microfluidic Analysis for the Determination of Protein Content in Different Types of Plant-Based Drinks}, url = {https://m2.mtmt.hu/api/publication/34167332}, author = {Balogh-Hartmann, Fruzsina and Páger, Csilla and Bufa, Anita and Madarászné Horváth, Ibolya and Verzár, Zsófia and Marosvölgyi, Tamás and Makszin, Lilla}, doi = {10.3390/molecules28186684}, journal-iso = {MOLECULES}, journal = {MOLECULES}, volume = {28}, unique-id = {34167332}, issn = {1420-3049}, abstract = {The widespread consumption of plant-based drinks, driven by health and dietary reasons (including cow's milk allergy, lactose intolerance, milk protein intolerance, following a vegetarian or vegan diet) necessitates automated and accurate test methods. Our study demonstrates the simultaneous determination of protein components and total protein concentrations in plant-based milk alternatives using a rapid and reproducible microchip gel electrophoretic method. As expected, the electrophoretic profiles of each plant-based drink differed. Based on our analyses and statistical evaluation, it can be determined that the protein profiles of different plant-based beverages do not differ significantly between different manufacturers or different expiry dates. The measured total protein content was compared with the nominal values, i.e., the values stated on the beverage labels. As the number of consumers of functional and specialized plant-based milk alternatives continues to rise, it is important to prioritize methods that provide qualitative and quantitative information on protein composition and other nutrients.}, keywords = {food allergy; Protein profile; Total protein content; Plant-based milk alternatives; microchip gel electrophoretic method}, year = {2023}, eissn = {1420-3049}, orcid-numbers = {Verzár, Zsófia/0000-0001-5323-0748; Marosvölgyi, Tamás/0000-0002-4244-5513; Makszin, Lilla/0000-0002-9764-4763} } @{MTMT:34050312, title = {Different electrophoretic approaches in the determination of L-Carnosine in commercial dietary supplement formulations}, url = {https://m2.mtmt.hu/api/publication/34050312}, author = {Pukleš, Iva and Páger, Csilla and Nikola, Sakač and Brunislav, Matasović and Bojan, Šarkanj and Katarína, Molnárov and Vesigne, Ana and Jozanović, Marija}, booktitle = {XI. Interdiszciplináris Doktorandusz Konferencia 2022. november 25-26 = 11th Interdisciplinary Doctoral Conference 25-26th of November 2022}, unique-id = {34050312}, year = {2022}, pages = {201}, orcid-numbers = {Jozanović, Marija/0000-0002-9509-8105} } @{MTMT:34050384, title = {LIPOPEPTIDEK VIZSGÁLATA CE-MS MÓDSZERREL VÍZMENTES KÖZEGBEN}, url = {https://m2.mtmt.hu/api/publication/34050384}, author = {Patyi, Gábor and Páger, Csilla and Sándor, Viktor and Kiss, Ibolya}, booktitle = {XLIV. Kémiai Előadói Napok}, unique-id = {34050384}, year = {2021}, pages = {22}, orcid-numbers = {Kiss, Ibolya/0000-0001-5447-2706} } @{MTMT:33603585, title = {Ciklikus lipopeptidek vizsgálata CE-MS/MS módszerrel vízmentes közegben}, url = {https://m2.mtmt.hu/api/publication/33603585}, author = {Patyi, Gábor and Páger, Csilla and Sándor, Viktor}, booktitle = {METT25 a Magyar Elválasztástudományi Társaság jubileumi konferenciája}, unique-id = {33603585}, year = {2021} } @article{MTMT:31933042, title = {The Role of Ionic Liquid Interaction in the Separation of Fatty Acid Methyl Esters—Polyunsaturated Geometric Isomers in GC–MS}, url = {https://m2.mtmt.hu/api/publication/31933042}, author = {Mező, Emerencia and Bufa, Anita and Páger, Csilla and Poór, Viktória and Marosvölgyi, Tamás and Kilár, Ferenc and Makszin, Lilla}, doi = {10.3390/separations8040038}, journal-iso = {SEPARATIONS}, journal = {SEPARATIONS}, volume = {8}, unique-id = {31933042}, issn = {2297-8739}, abstract = {Knowledge of the type and level of saturated and unsaturated fatty acids in food and clinical matrices is of practical importance, but the wide variety of fatty acids makes analyses very complex. The discrimination of the geometric isomers of fatty acid needs proper and effective separation conditions. The efficiency of three different stationary phases was evaluated by GC–MS methods in the separation of fatty acids in their methyl ester forms. Significant differences were observed in the efficiencies of polysiloxane-based (non-polar HP-5MS and medium/high polarity DB-225MS) and ionic liquid-based (SLB-IL111) columns. Baseline separation of the geometric isomers of linoleic acid methyl ester was obtained by the extremely polar SLB-IL111 column, showing a preference over the other two columns. The optimization of the experimental conditions (response linearity, limit of detection, limit of quantification, system suitability, intraday and interday repeatability and accuracy) showed the separation power of the ionic liquid interaction in the analyses by using short (25–30 m long) columns. By deducting the general principles of the interaction, predictions can be made for the separation of other isomers. The results facilitate the precise identification of various types of fatty acids in real samples for nutritional information.}, keywords = {VALIDATION; GC-MS; Interaction; Fatty acid methyl ester; geometric isomers; ionic liquid phase; trans fats}, year = {2021}, eissn = {2297-8739}, orcid-numbers = {Marosvölgyi, Tamás/0000-0002-4244-5513; Kilár, Ferenc/0000-0001-5737-5514; Makszin, Lilla/0000-0002-9764-4763} }