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Mohos V, Faisal Z, Fliszár-Nyúl E, Szente L, Poór M. Testing the extraction of 12 mycotoxins from aqueous solutions by insoluble beta-cyclodextrin bead polymer. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:210-221. [PMID: 34322792 PMCID: PMC8724181 DOI: 10.1007/s11356-021-15628-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 07/20/2021] [Indexed: 06/13/2023]
Abstract
Mycotoxins are toxic metabolites of filamentous fungi; they are common contaminants in numerous foods and beverages. Cyclodextrins are ring-shaped oligosaccharides, which can form host-guest type complexes with certain mycotoxins. Insoluble beta-cyclodextrin bead polymer (BBP) extracted successfully some mycotoxins (e.g., alternariol and zearalenone) from aqueous solutions, including beverages. Therefore, in this study, we aimed to examine the ability of BBP to remove other 12 mycotoxins (including aflatoxin B1, aflatoxin M1, citrinin, dihydrocitrinone, cyclopiazonic acid, deoxynivalenol, ochratoxin A, patulin, sterigmatocystin, zearalanone, α-zearalanol, and β-zearalanol) from different buffers (pH 3.0, 5.0, and 7.0). Our results showed that BBP can effectively extract citrinin, dihydrocitrinone, sterigmatocystin, zearalanone, α-zearalanol, and β-zearalanol at each pH tested. However, for the removal of ochratoxin A, BBP was far the most effective at pH 3.0. Based on these observations, BBP may be a suitable mycotoxin binder to extract certain mycotoxins from aqueous solutions for decontamination and/or for analytical purposes.
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Affiliation(s)
- Violetta Mohos
- Department of Pharmacology, Faculty of Pharmacy, University of Pécs, Rókus u. 2, Pécs, H-7624 Hungary
- Food Biotechnology Research Group, János Szentágothai Research Centre, University of Pécs, Ifjúság útja 20, Pécs, H-7624 Hungary
| | - Zelma Faisal
- Department of Pharmacology, Faculty of Pharmacy, University of Pécs, Rókus u. 2, Pécs, H-7624 Hungary
- Food Biotechnology Research Group, János Szentágothai Research Centre, University of Pécs, Ifjúság útja 20, Pécs, H-7624 Hungary
| | - Eszter Fliszár-Nyúl
- Department of Pharmacology, Faculty of Pharmacy, University of Pécs, Rókus u. 2, Pécs, H-7624 Hungary
- Food Biotechnology Research Group, János Szentágothai Research Centre, University of Pécs, Ifjúság útja 20, Pécs, H-7624 Hungary
| | - Lajos Szente
- CycloLab Cyclodextrin Research & Development Laboratory, Ltd., Illatos út 7, Budapest, H-1097 Hungary
| | - Miklós Poór
- Department of Pharmacology, Faculty of Pharmacy, University of Pécs, Rókus u. 2, Pécs, H-7624 Hungary
- Food Biotechnology Research Group, János Szentágothai Research Centre, University of Pécs, Ifjúság útja 20, Pécs, H-7624 Hungary
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Interaction of zearalenone-14-sulfate with cyclodextrins and the removal of the modified mycotoxin from aqueous solution by beta-cyclodextrin bead polymer. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113236] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Faisal Z, Garai E, Csepregi R, Bakos K, Fliszár-Nyúl E, Szente L, Balázs A, Cserháti M, Kőszegi T, Urbányi B, Csenki Z, Poór M. Protective effects of beta-cyclodextrins vs. zearalenone-induced toxicity in HeLa cells and Tg(vtg1:mCherry) zebrafish embryos. CHEMOSPHERE 2020; 240:124948. [PMID: 31726616 DOI: 10.1016/j.chemosphere.2019.124948] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2019] [Revised: 09/20/2019] [Accepted: 09/22/2019] [Indexed: 06/10/2023]
Abstract
Zearalenone is a xenoestrogenic mycotoxin produced by Fusarium species. High exposure with zearalenone induces reproductive disorders worldwide. Cyclodextrins are ring-shaped host molecules built up from glucose units. The apolar cavity of cyclodextrins can entrap so-called guest molecules. The formation of highly stable host-guest type complexes with cyclodextrins can decrease the biological effect of the guest molecule. Therefore, cyclodextrins may be suitable to decrease the toxicity of some xenobiotics even after the exposure. In this study, the protective effect of beta-cyclodextrins against zearalenone-induced toxicity was investigated in HeLa cells and zebrafish embryos. Fluorescence spectroscopic studies demonstrated the formation of stable complexes of zearalenone with sulfobutyl-, methyl-, and succinyl-methyl-substituted beta-cyclodextrins at pH 7.4 (K = 1.4-4.7 × 104 L/mol). These chemically modified cyclodextrins considerably decreased or even abolished the zearalenone-induced loss of cell viability in HeLa cells and mortality in zebrafish embryos. Furthermore, the sublethal effects of zearalenone were also significantly alleviated by the co-treatment with beta-cyclodextrins. To test the estrogenic effect of the mycotoxin, a transgenic bioindicator zebrafish model (Tg(vtg1:mCherry)) was also applied. Our results suggest that the zearalenone-induced vitellogenin production is partly suppressed by the hepatotoxicity of zearalenone in zebrafish. This study demonstrates that the formation of stable zearalenone-cyclodextrin complexes can strongly decrease or even abolish the zearalenone-induced toxicity, both in vitro and in vivo. Therefore, cyclodextrins appear as promising new mycotoxin binders.
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Affiliation(s)
- Zelma Faisal
- Department of Pharmacology, Faculty of Pharmacy, University of Pécs, Szigeti út 12, H-7624, Pécs, Hungary; János Szentágothai Research Center, University of Pécs, Ifjúság útja 20, H-7624, Pécs, Hungary.
| | - Edina Garai
- Department of Aquaculture, Institute of Aquaculture and Environmental Safety, Faculty of Agricultural and Environmental Sciences, Szent István University, Páter Károly u. 1, H-2100, Gödöllő, Hungary.
| | - Rita Csepregi
- János Szentágothai Research Center, University of Pécs, Ifjúság útja 20, H-7624, Pécs, Hungary; Department of Laboratory Medicine, Medical School, University of Pécs, Ifjúság út 13, H-7624, Pécs, Hungary.
| | - Katalin Bakos
- Department of Aquaculture, Institute of Aquaculture and Environmental Safety, Faculty of Agricultural and Environmental Sciences, Szent István University, Páter Károly u. 1, H-2100, Gödöllő, Hungary.
| | - Eszter Fliszár-Nyúl
- Department of Pharmacology, Faculty of Pharmacy, University of Pécs, Szigeti út 12, H-7624, Pécs, Hungary; János Szentágothai Research Center, University of Pécs, Ifjúság útja 20, H-7624, Pécs, Hungary.
| | - Lajos Szente
- CycloLab Cyclodextrin Research & Development Laboratory, Ltd., Illatos út 7, H-1097, Budapest, Hungary.
| | - Adrienn Balázs
- Department of Environmental Safety and Ecotoxicology, Institute of Aquaculture and Environmental Safety, Faculty of Agricultural and Environmental Sciences, Szent István University, Páter Károly u. 1, H-2100, Gödöllő, Hungary.
| | - Mátyás Cserháti
- Department of Environmental Safety and Ecotoxicology, Institute of Aquaculture and Environmental Safety, Faculty of Agricultural and Environmental Sciences, Szent István University, Páter Károly u. 1, H-2100, Gödöllő, Hungary.
| | - Tamás Kőszegi
- János Szentágothai Research Center, University of Pécs, Ifjúság útja 20, H-7624, Pécs, Hungary; Department of Laboratory Medicine, Medical School, University of Pécs, Ifjúság út 13, H-7624, Pécs, Hungary.
| | - Béla Urbányi
- Department of Aquaculture, Institute of Aquaculture and Environmental Safety, Faculty of Agricultural and Environmental Sciences, Szent István University, Páter Károly u. 1, H-2100, Gödöllő, Hungary.
| | - Zsolt Csenki
- Department of Aquaculture, Institute of Aquaculture and Environmental Safety, Faculty of Agricultural and Environmental Sciences, Szent István University, Páter Károly u. 1, H-2100, Gödöllő, Hungary.
| | - Miklós Poór
- Department of Pharmacology, Faculty of Pharmacy, University of Pécs, Szigeti út 12, H-7624, Pécs, Hungary; János Szentágothai Research Center, University of Pécs, Ifjúság útja 20, H-7624, Pécs, Hungary.
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Faisal Z, Fliszár-Nyúl E, Dellafiora L, Galaverna G, Dall'Asta C, Lemli B, Kunsági-Máté S, Szente L, Poór M. Cyclodextrins Can Entrap Zearalenone-14-Glucoside: Interaction of the Masked Mycotoxin with Cyclodextrins and Cyclodextrin Bead Polymer. Biomolecules 2019; 9:E354. [PMID: 31405003 PMCID: PMC6724229 DOI: 10.3390/biom9080354] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Revised: 08/07/2019] [Accepted: 08/07/2019] [Indexed: 01/07/2023] Open
Abstract
Zearalenone (ZEN) is a Fusarium-derived xenoestrogenic mycotoxin. In plants, zearalenone-14-O-β-d-glucoside (Z14G) is the major conjugated metabolite of ZEN, and is a masked mycotoxin. Masked mycotoxins are plant-modified derivatives, which are not routinely screened in food and feed samples. Cyclodextrins (CDs) are cyclic oligosaccharides built up from D-glucopyranose units. CDs can form stable host-guest type complexes with lipophilic molecules (e.g., with some mycotoxins). In this study, the interaction of Z14G with native and chemically modified β- and γ-CDs was examined employing fluorescence spectroscopy and molecular modeling. Furthermore, the removal of Z14G from aqueous solution by insoluble β-CD bead polymer (BBP) was also tested. Our results demonstrate that Z14G forms the most stable complexes with γ-CDs under acidic and neutral conditions (K ≈ 103 L/mol). Among the CDs tested, randomly methylated γ-CD induced the highest increase in the fluorescence of Z14G (7.1-fold) and formed the most stable complexes with the mycotoxin (K = 2 × 103 L/mol). Furthermore, BBP considerably reduced the Z14G content of aqueous solution. Based on these observations, CD technology seems a promising tool to improve the fluorescence analytical detection of Z14G and to discover new mycotoxin binders which can also remove masked mycotoxins (e.g., Z14G).
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Affiliation(s)
- Zelma Faisal
- Department of Pharmacology, Faculty of Pharmacy, University of Pécs, Szigeti út 12, H-7624 Pécs, Hungary
- János Szentágothai Research Center, University of Pécs, Ifjúság útja 20, H-7624 Pécs, Hungary
| | - Eszter Fliszár-Nyúl
- Department of Pharmacology, Faculty of Pharmacy, University of Pécs, Szigeti út 12, H-7624 Pécs, Hungary
- János Szentágothai Research Center, University of Pécs, Ifjúság útja 20, H-7624 Pécs, Hungary
| | - Luca Dellafiora
- Department of Food and Drug, University of Parma, Via G.P. 7 Usberti 17/A, 43124 Parma, Italy
| | - Gianni Galaverna
- Department of Food and Drug, University of Parma, Via G.P. 7 Usberti 17/A, 43124 Parma, Italy
| | - Chiara Dall'Asta
- Department of Food and Drug, University of Parma, Via G.P. 7 Usberti 17/A, 43124 Parma, Italy
| | - Beáta Lemli
- János Szentágothai Research Center, University of Pécs, Ifjúság útja 20, H-7624 Pécs, Hungary
- Institute of Organic and Medicinal Chemistry, Medical School, University of Pécs, Szigeti út 12, H-7624 Pécs, Hungary
| | - Sándor Kunsági-Máté
- János Szentágothai Research Center, University of Pécs, Ifjúság útja 20, H-7624 Pécs, Hungary
- Institute of Organic and Medicinal Chemistry, Medical School, University of Pécs, Szigeti út 12, H-7624 Pécs, Hungary
| | - Lajos Szente
- CycloLab Cyclodextrin Research & Development Laboratory, Ltd., Illatos út 7, H-1097 Budapest, Hungary
| | - Miklós Poór
- Department of Pharmacology, Faculty of Pharmacy, University of Pécs, Szigeti út 12, H-7624 Pécs, Hungary.
- János Szentágothai Research Center, University of Pécs, Ifjúság útja 20, H-7624 Pécs, Hungary.
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Faisal Z, Kunsági-Máté S, Lemli B, Szente L, Bergmann D, Humpf HU, Poór M. Interaction of Dihydrocitrinone with Native and Chemically Modified Cyclodextrins. Molecules 2019; 24:molecules24071328. [PMID: 30987312 PMCID: PMC6479545 DOI: 10.3390/molecules24071328] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Revised: 03/29/2019] [Accepted: 04/01/2019] [Indexed: 01/18/2023] Open
Abstract
Citrinin (CIT) is a nephrotoxic mycotoxin produced by Aspergillus, Penicillium, and Monascus genera. It appears as a contaminant in grains, fruits, and spices. After oral exposure to CIT, its major urinary metabolite, dihydrocitrinone (DHC) is formed, which can be detected in human urine and blood samples. Cyclodextrins (CDs) are ring-shaped molecules built up from glucose units. CDs can form host-guest type complexes with several compounds, including mycotoxins. In this study, the complex formation of DHC with native and chemically modified beta- and gamma-cyclodextrins was tested at a wide pH range, employing steady-state fluorescence spectroscopic and modeling studies. The weakly acidic environment favors the formation of DHC-CD complexes. Among the CDs tested, the quaternary-ammonium-γ-cyclodextrin (QAGCD) formed the most stable complexes with DHC. However, the quaternary-ammonium-β-cyclodextrin (QABCD) induced the strongest enhancement in the fluorescence signal of DHC. Our results show that some of the chemically modified CDs are able to form stable complexes with DHC (logK = 3.2–3.4) and the complex formation can produce even a 20-fold increase in the fluorescence signal of DHC. Considering the above-listed observations, CD technology may be a promising tool to increase the sensitivity of the fluorescence detection of DHC.
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Affiliation(s)
- Zelma Faisal
- Department of Pharmacology, Faculty of Pharmacy, University of Pécs, Szigeti út 12, 7624 Pécs, Hungary.
- János Szentágothai Research Center, University of Pécs, Ifjúság útja 20, 7624 Pécs, Hungary.
| | - Sándor Kunsági-Máté
- János Szentágothai Research Center, University of Pécs, Ifjúság útja 20, 7624 Pécs, Hungary.
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Pécs, Rókus u. 2, 7624 Pécs, Hungary.
| | - Beáta Lemli
- János Szentágothai Research Center, University of Pécs, Ifjúság útja 20, 7624 Pécs, Hungary.
- Institute of Organic and Medicinal Chemistry, Medical School, University of Pécs, Szigeti út 12, H-7624 Pécs, Hungary.
| | - Lajos Szente
- CycloLab Cyclodextrin Research & Development Laboratory, Ltd., Illatos út 7, 1097 Budapest, Hungary.
| | - Dominik Bergmann
- Institute of Food Chemistry, Westfälische Wilhelms-Universität Münster, Corrensstr. 45, 48149 Münster, Germany.
| | - Hans-Ulrich Humpf
- Institute of Food Chemistry, Westfälische Wilhelms-Universität Münster, Corrensstr. 45, 48149 Münster, Germany.
| | - Miklós Poór
- Department of Pharmacology, Faculty of Pharmacy, University of Pécs, Szigeti út 12, 7624 Pécs, Hungary.
- János Szentágothai Research Center, University of Pécs, Ifjúság útja 20, 7624 Pécs, Hungary.
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Removal of Zearalenone and Zearalenols from Aqueous Solutions Using Insoluble Beta-Cyclodextrin Bead Polymer. Toxins (Basel) 2018; 10:toxins10060216. [PMID: 29799507 PMCID: PMC6024756 DOI: 10.3390/toxins10060216] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Revised: 05/20/2018] [Accepted: 05/23/2018] [Indexed: 12/25/2022] Open
Abstract
Zearalenone (ZEN) is a Fusarium-derived mycotoxin, exerting xenoestrogenic effects in animals and humans. ZEN and its derivatives commonly occur in cereals and cereal-based products. During the biotransformation of ZEN, its reduced metabolites, α-zearalenol (α-ZEL) and β-zearalenol (β-ZEL), are formed; α-ZEL is even more toxic than the parent compound ZEN. Since previous studies demonstrated that ZEN and ZELs form stable complexes with β-cyclodextrins, it is reasonable to hypothesize that cyclodextrin polymers may be suitable for mycotoxin removal from aqueous solutions. In this study, the extraction of ZEN and ZELs from water, buffers, and corn beer was investigated, employing insoluble β-cyclodextrin bead polymer (BBP) as a mycotoxin-binder. Our results demonstrate that even relatively small amounts of BBP can strongly decrease the mycotoxin content of aqueous solutions (including beer). After the first application of BBP for mycotoxin binding, BBP could be completely reactivated through the elimination of ZEN from the cyclodextrin cavities by washing with a 50 v/v% ethanol-water mixture. Therefore, our study suggests that insoluble cyclodextrin polymers may be suitable tools in the future to deplete mycotoxins from contaminated drinks.
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Poór M, Zand A, Szente L, Lemli B, Kunsági-Máté S. Interaction of α- and β-zearalenols with β-cyclodextrins. Molecules 2017; 22:molecules22111910. [PMID: 29113131 PMCID: PMC6150337 DOI: 10.3390/molecules22111910] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Revised: 11/03/2017] [Accepted: 11/03/2017] [Indexed: 12/13/2022] Open
Abstract
Zearalenone (ZEN) is a mycotoxin produced by Fusarium fungi. ZEN primarily contaminates different cereals, and exerts a strong xenoestrogenic effect in animals and humans. ZEN is a fluorescent mycotoxin, although molecular interactions and microenvironmental changes significantly modify its spectral properties. During biotransformation, ZEN is converted into α-zearalenol (α-ZOL) and β-zearalenol (β-ZOL), the toxic metabolites of ZEN, which mimick the effect of estrogen. Cyclodextrins (CDs) are host molecules, and have been studied extensively; they can form stable complexes with several mycotoxins, including ZEN. However, information is limited regarding the interactions of CDs with ZOLs. Therefore, we studied the interactions of α- and β-ZOLs with native and six chemically modified β-CDs by fluorescence spectroscopy. Fluorescence enhancement during complex formation, as well as binding constants, were determined. To understand ZOL-CD interactions better, molecular modeling studies were also carried out. Both mycotoxin derivatives formed the most stable complexes with methylated and sulfobutylated CD-derivatives; however, the CD complexes of α-ZOL were significantly stronger than those of β-ZOL. The data presented here indicate which of the chemically modified β-CDs appear more suitable as fluorescence enhancers or as potential mycotoxin binders.
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Affiliation(s)
- Miklós Poór
- Department of Pharmacology, Faculty of Pharmacy, University of Pécs, Szigeti út 12, H-7624 Pécs, Hungary.
- János Szentágothai Research Center, University of Pécs, Ifjúság útja 20, H-7624 Pécs, Hungary.
| | - Afshin Zand
- Department of Pharmacology, Faculty of Pharmacy, University of Pécs, Szigeti út 12, H-7624 Pécs, Hungary.
| | - Lajos Szente
- CycloLab Cyclodextrin Research & Development Laboratory, Ltd., Illatos út 7, H-1097 Budapest, Hungary.
| | - Beáta Lemli
- János Szentágothai Research Center, University of Pécs, Ifjúság útja 20, H-7624 Pécs, Hungary.
- Department of General and Physical Chemistry, University of Pécs, Ifjúság útja 6, H-7624 Pécs, Hungary.
| | - Sándor Kunsági-Máté
- János Szentágothai Research Center, University of Pécs, Ifjúság útja 20, H-7624 Pécs, Hungary.
- Department of General and Physical Chemistry, University of Pécs, Ifjúság útja 6, H-7624 Pécs, Hungary.
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Poór M, Kunsági-Máté S, Sali N, Kőszegi T, Szente L, Peles-Lemli B. Interactions of zearalenone with native and chemically modified cyclodextrins and their potential utilization. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2015; 151:63-8. [DOI: 10.1016/j.jphotobiol.2015.07.009] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2015] [Revised: 07/07/2015] [Accepted: 07/09/2015] [Indexed: 11/30/2022]
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