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Investigation of the mechanism of zearalenone metabolization in different systems: Electrochemical and theoretical approaches. Toxicon 2022; 210:19-24. [DOI: 10.1016/j.toxicon.2022.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 01/14/2022] [Accepted: 02/02/2022] [Indexed: 11/18/2022]
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Zeng Y, Camarada MB, Lu X, Tang K, Li W, Qiu D, Wen Y, Wu G, Luo Q, Bai L. Detection and electrocatalytic mechanism of zearalenone using nanohybrid sensor based on copper-based metal-organic framework/magnetic Fe 3O 4-graphene oxide modified electrode. Food Chem 2022; 370:131024. [PMID: 34525426 DOI: 10.1016/j.foodchem.2021.131024] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 08/27/2021] [Accepted: 08/30/2021] [Indexed: 11/04/2022]
Abstract
A novel and simple strategy was proposed for the determination of ZEA in breakfast cereal, maize powder and rice flour using an electrochemical nanohybrid sensor based on copper-based metal-organic framework (Cu-MOF)/magnetic Fe3O4-graphene oxide (Fe3O4-GO) modified electrode fabricated by the layer-by-layer assembled technique. The synthesized Cu-MOF with high porosity favorably improved the effective surface area and the analytical performance of nanohybrid sensing electrode. The crafted sensor has large surface area, high electron transfer, and satisfactory efficiency. ZEA was electrochemically detected in a wide linear range from 159.2 to 2865.2 ng mL-1 with LOD of 23.14 ng mL-1 under the optimal conditions. Moreover, the electrocatalytic mechanism of ZEA oxidation was proposed by density functional theory (DFT). A favorable energetic interaction was presented when Cu-MOF adsorbed on Fe3O4-GO, and a small new band appeared on the Fermi level energy (Ef) that facilitated the electron transfer between bands.
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Affiliation(s)
- Yifang Zeng
- College of Food Science and Engineering, Jiangxi Agricultural University, Nanchang 330045, People's Republic of China; Institute of Functional Materials and Agricultural Applied Chemistry, Jiangxi Agricultural University, Nanchang 330045, People's Republic of China
| | - María Belén Camarada
- Departamento de Química Inorgánica, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile; Centro Investigación en Nanotecnología y Materiales Avanzados, CIEN-UC, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Xinyu Lu
- Institute of Functional Materials and Agricultural Applied Chemistry, Jiangxi Agricultural University, Nanchang 330045, People's Republic of China
| | - Kaijie Tang
- College of Food Science and Engineering, Jiangxi Agricultural University, Nanchang 330045, People's Republic of China.
| | - Weiqiang Li
- College of Food Science and Engineering, Jiangxi Agricultural University, Nanchang 330045, People's Republic of China; Institute of Functional Materials and Agricultural Applied Chemistry, Jiangxi Agricultural University, Nanchang 330045, People's Republic of China
| | - Daoyang Qiu
- College of Food Science and Engineering, Jiangxi Agricultural University, Nanchang 330045, People's Republic of China; Institute of Functional Materials and Agricultural Applied Chemistry, Jiangxi Agricultural University, Nanchang 330045, People's Republic of China
| | - Yangping Wen
- Institute of Functional Materials and Agricultural Applied Chemistry, Jiangxi Agricultural University, Nanchang 330045, People's Republic of China.
| | - Guoping Wu
- College of Food Science and Engineering, Jiangxi Agricultural University, Nanchang 330045, People's Republic of China
| | - Qiushui Luo
- College of Food Science and Engineering, Jiangxi Agricultural University, Nanchang 330045, People's Republic of China
| | - Ling Bai
- Institute of Functional Materials and Agricultural Applied Chemistry, Jiangxi Agricultural University, Nanchang 330045, People's Republic of China
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Electrocatalytic oxidation of zearalenone on cobalt phthalocyanine-modified screen-printed carbon electrode. MONATSHEFTE FUR CHEMIE 2019. [DOI: 10.1007/s00706-019-02532-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Transformation Products of Organic Contaminants and Residues-Overview of Current Simulation Methods. Molecules 2019; 24:molecules24040753. [PMID: 30791496 PMCID: PMC6413221 DOI: 10.3390/molecules24040753] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Revised: 02/14/2019] [Accepted: 02/16/2019] [Indexed: 01/27/2023] Open
Abstract
The formation of transformation products (TPs) from contaminants and residues is becoming an increasing focus of scientific community. All organic compounds can form different TPs, thus demonstrating the complexity and interdisciplinarity of this topic. The properties of TPs could stand in relation to the unchanged substance or be more harmful and persistent. To get important information about the generated TPs, methods are needed to simulate natural and manmade transformation processes. Current tools are based on metabolism studies, photochemical methods, electrochemical methods, and Fenton’s reagent. Finally, most transformation processes are based on redox reactions. This review aims to compare these methods for structurally different compounds. The groups of pesticides, pharmaceuticals, brominated flame retardants, and mycotoxins were selected as important residues/contaminants relating to their worldwide occurrence and impact to health, food, and environmental safety issues. Thus, there is an increasing need for investigation of transformation processes and identification of TPs by fast and reliable methods.
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Keller J, Hantschke L, Haase H, Koch M. Synthesis and Structural Identification of a Biaryl Ether-Linked Zearalenone Dimer. MOLECULES (BASEL, SWITZERLAND) 2018; 23:molecules23102624. [PMID: 30322096 PMCID: PMC6222810 DOI: 10.3390/molecules23102624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Revised: 10/08/2018] [Accepted: 10/11/2018] [Indexed: 11/16/2022]
Abstract
A new dimer of the food-relevant mycotoxin zearalenone was isolated after electrochemical and chemical oxidation. The structure was determined as a 16-O-15'-biaryl ether-linked dimer based on spectroscopic analyses (¹H- and 13C-NMR, COSY, HMBC, and HSQCAD) and high-resolution mass spectrometry analysis (Q-TOF).
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Affiliation(s)
- Julia Keller
- Department Analytical Chemistry, Reference Materials, Bundesanstalt für Materialforschung und -prüfung (BAM), Richard-Willstätter-Straße 11, 12489 Berlin, Germany.
| | - Luisa Hantschke
- Department Analytical Chemistry, Reference Materials, Bundesanstalt für Materialforschung und -prüfung (BAM), Richard-Willstätter-Straße 11, 12489 Berlin, Germany.
| | - Hajo Haase
- Department of Food Chemistry and Toxicology, Technische Universität Berlin, Gustav-Meyer-Allee 25, 13355 Berlin, Germany.
| | - Matthias Koch
- Department Analytical Chemistry, Reference Materials, Bundesanstalt für Materialforschung und -prüfung (BAM), Richard-Willstätter-Straße 11, 12489 Berlin, Germany.
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