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Jedziniak P, Panasiuk Ł, Pietruszka K, Kolano K, Zbytniewski R. Inter-laboratory validation of liquid chromatography-tandem mass spectrometry multi-mycotoxin determination in animal feed - method transfer from the reference laboratory to regional laboratories. J Vet Res 2023; 67:397-406. [PMID: 37786855 PMCID: PMC10541672 DOI: 10.2478/jvetres-2023-0045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Accepted: 07/18/2023] [Indexed: 10/04/2023] Open
Abstract
Introduction The results are presented of the inter-laboratory validation of a liquid chromatography-tandem mass spectrometry method for the determination of eight mycotoxins (aflatoxin B1, deoxynivalenol, fumonisin B1, fumonisin B2, ochratoxin A, toxin T-2, toxin HT-2 and zearalenone) in animal feeds. Material and Methods This study was an essential part of the method's transfer from the National Reference Laboratory to six regional laboratories in Poland working in the official survey of mycotoxins in feed. The laboratories received a batch of standard solutions, blank samples and quality control materials on which to perform analysis with one procedure and different liquid chromatography-tandem mass spectrometry conditions. Results The validation results show good precision (reproducibility coefficient of variation 3.7-20.5%) and accuracy of the method (recovery 89-120% and trueness 94-103%) and sufficient skills of the laboratory personnel. Conclusion The study is an example of the successful transfer of the method among laboratories.
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Affiliation(s)
- Piotr Jedziniak
- Department of Pharmacology and Toxicology, National Veterinary Research Institute, 24-100Puławy, Poland
| | - Łukasz Panasiuk
- Department of Pharmacology and Toxicology, National Veterinary Research Institute, 24-100Puławy, Poland
| | - Katarzyna Pietruszka
- Department of Pharmacology and Toxicology, National Veterinary Research Institute, 24-100Puławy, Poland
| | - Krzysztof Kolano
- Department of Veterinary Hygiene, Provincial Veterinary Inspectorate, 30-965Kraków, Poland
| | - Radosław Zbytniewski
- Department of Veterinary Hygiene, Provincial Veterinary Inspectorate, 85-090Bydgoszcz, Poland
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Zhang K, Tran I, Tan S. Characterization of Particle-Size-Based Homogeneity and Mycotoxin Distribution Using Laser Diffraction Particle Size Analysis. Toxins (Basel) 2023; 15:450. [PMID: 37505719 PMCID: PMC10467063 DOI: 10.3390/toxins15070450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 06/30/2023] [Accepted: 07/04/2023] [Indexed: 07/29/2023] Open
Abstract
Sample homogeneity dictates whether analyzing a test portion of an entire sample can provide representative information about incurred mycotoxins. In this study, we evaluated particle-size-distribution-based homogeneity of laboratory mycotoxin samples using laser diffraction particle size analysis and International Organization for Standardization (ISO) Guide 35: 2017. Incurred whole corn, compound feed, peanut butter, and wheat flour (500 g each) were comminuted using wet, cryogenic, or dry milling. We used a sample dividing (riffling) device to obtain representative subsamples (25 g each) and developed a laser diffraction particle size analysis procedure by optimizing key parameters such as the refractive index, absorption, and stirring rate. The homogeneity of the particle size distribution within laboratory subsamples was characterized using the optimized laser diffraction procedure. An assessment of homogeneity was also performed for individual mycotoxins in each incurred matrix sample following the procedure described in ISO Guide 35. The concentrations of the incurred mycotoxins were determined using liquid chromatography-mass spectrometry (LC-MS). Within- and between-subsample variances of incurred aflatoxin B1 in peanut butter; deoxynivalenol in corn, compound feed, and wheat flour; and fumonisins in compound feed corroborated that when the particle size measurements were less than 850 µm, mycotoxins concentrations were consistent across independent test portions, which was confirmed using an analysis of variance (F-test). This study highlights the benefits of laser diffraction particle size analysis and suggests its use as a test procedure to evaluate homogeneity in new sample commodities.
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Affiliation(s)
- Kai Zhang
- Office of Regulatory Science, Center for Food Safety and Applied Nutrition, Food and Drug Administration, 5001 Campus Drive, College Park, MD 20740, USA; (I.T.); (S.T.)
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3
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Iha MH, Rodrigues ML, Trucksess MW. Multitoxin immunoaffinity analysis of aflatoxins and ochratoxin A in spices. J Food Saf 2021. [DOI: 10.1111/jfs.12921] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Maria Helena Iha
- Center for Chemical Sciences and Bromatological Adolfo Lutz Institute of Ribeirão Preto VI Ribeirão Preto Brazil
| | - Matheus Leandro Rodrigues
- Center for Chemical Sciences and Bromatological Adolfo Lutz Institute of Ribeirão Preto VI Ribeirão Preto Brazil
| | - Mary Wat Trucksess
- U.S. Food and Drug Administration Center for Food Safety and Applied Nutrition, Office of Regulatory Science College Park Maryland USA
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Peltomaa R, Benito-Peña E, Gorris HH, Moreno-Bondi MC. Biosensing based on upconversion nanoparticles for food quality and safety applications. Analyst 2021; 146:13-32. [PMID: 33205784 DOI: 10.1039/d0an01883j] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Food safety and quality regulations inevitably call for sensitive and accurate analytical methods to detect harmful contaminants in food and to ensure safe food for the consumer. Both novel and well-established biorecognition elements, together with different transduction schemes, enable the simple and rapid analysis of various food contaminants. Upconversion nanoparticles (UCNPs) are inorganic nanocrystals that convert near-infrared light into shorter wavelength emission. This unique photophysical feature, along with narrow emission bandwidths and large anti-Stokes shift, render UCNPs excellent optical labels for biosensing because they can be detected without optical background interferences from the sample matrix. In this review, we show how this exciting technique has evolved into biosensing platforms for food quality and safety monitoring and highlight recent applications in the field.
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Affiliation(s)
- Riikka Peltomaa
- Department of Biochemistry/Biotechnology, University of Turku, Kiinamyllynkatu 10, 20520, Turku, Finland
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Optimization and Validation of an Analytical Method for the Determination of Free and Hidden Fumonisins in Corn and Corn Products by UHPLC-MS/MS. FOOD ANAL METHOD 2021. [DOI: 10.1007/s12161-021-01984-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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6
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Peltomaa R, Fikacek S, Benito-Peña E, Barderas R, Head T, Deo S, Daunert S, Moreno-Bondi MC. Bioluminescent detection of zearalenone using recombinant peptidomimetic Gaussia luciferase fusion protein. Mikrochim Acta 2020; 187:547. [PMID: 32886242 DOI: 10.1007/s00604-020-04538-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2020] [Accepted: 08/28/2020] [Indexed: 12/25/2022]
Abstract
The development of a bioluminescent immunosensor is reported for the determination of zearalenone (ZEA) based on a peptide mimetic identified by phage display. The peptide mimetic GW, with a peptide sequence GWWGPYGEIELL, was used to create recombinant fusion proteins with the bioluminescent Gaussia luciferase (GLuc) that were directly used as tracers for toxin detection in a competitive immunoassay without the need for secondary antibodies or further labeling. The bioluminescent sensor, based on protein G-coupled magnetic beads for antibody immobilization, enabled determination of ZEA with a detection limit of 4.2 ng mL-1 (corresponding to 420 μg kg-1 in food samples) and an IC50 value of 11.0 ng mL-1. The sensor performance was evaluated in spiked maize and wheat samples, with recoveries ranging from 87 to 106% (RSD < 20%, n = 3). Finally, the developed method was applied to the analysis of a naturally contaminated reference matrix material and good agreement with the reported concentrations was obtained.Graphical abstract.
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Affiliation(s)
- Riikka Peltomaa
- Department of Analytical Chemistry, Faculty of Chemistry, Complutense University, Ciudad Universitaria s/n, 28040, Madrid, Spain
| | - Sabrina Fikacek
- Department of Analytical Chemistry, Faculty of Chemistry, Complutense University, Ciudad Universitaria s/n, 28040, Madrid, Spain
| | - Elena Benito-Peña
- Department of Analytical Chemistry, Faculty of Chemistry, Complutense University, Ciudad Universitaria s/n, 28040, Madrid, Spain.
| | - Rodrigo Barderas
- Chronic Disease Programme, UFIEC, Instituto de Salud Carlos III, Ctra. Majadahonda-Pozuelo Km 2.2, 28220, Madrid, Spain
| | - Trajen Head
- Department of Biochemistry and Molecular Biology, Miller School of Medicine, University of Miami, Miami, FL, 33136, USA.,Dr. JT Macdonald Foundation Biomedical Nanotechnology Institute, University of Miami, Coral Gables, FL, 33136, USA
| | - Sapna Deo
- Department of Biochemistry and Molecular Biology, Miller School of Medicine, University of Miami, Miami, FL, 33136, USA.,Dr. JT Macdonald Foundation Biomedical Nanotechnology Institute, University of Miami, Coral Gables, FL, 33136, USA
| | - Sylvia Daunert
- Department of Biochemistry and Molecular Biology, Miller School of Medicine, University of Miami, Miami, FL, 33136, USA.,Dr. JT Macdonald Foundation Biomedical Nanotechnology Institute, University of Miami, Coral Gables, FL, 33136, USA.,University of Miami Clinical and Translational Science Institute, University of Miami, Miami, FL, 33136, USA
| | - María C Moreno-Bondi
- Department of Analytical Chemistry, Faculty of Chemistry, Complutense University, Ciudad Universitaria s/n, 28040, Madrid, Spain.
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Qiao X, Zhang J, Yang Y, Yin J, Li H, Xing Y, Shao B. Development of a simple and rapid LC-MS/MS method for the simultaneous quantification of five Alternaria mycotoxins in human urine. J Chromatogr B Analyt Technol Biomed Life Sci 2020; 1144:122096. [DOI: 10.1016/j.jchromb.2020.122096] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 02/15/2020] [Accepted: 03/29/2020] [Indexed: 10/24/2022]
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8
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Leite M, Freitas A, Silva AS, Barbosa J, Ramos F. Maize (Zea mays L.) and mycotoxins: A review on optimization and validation of analytical methods by liquid chromatography coupled to mass spectrometry. Trends Food Sci Technol 2020. [DOI: 10.1016/j.tifs.2020.03.023] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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9
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İçelli O, Öz E, Bakırdere S, Nuroğlu E. Analysis of Conventionally and Magnetic-Field Dried Fruit and Nuts for Mycotoxins by High-Performance Liquid Chromatography–Tandem Mass Spectrometry (HPLC-MS/MS) and Trace Elements by Inductively Coupled Plasma–Mass Spectrometry (ICP-MS). ANAL LETT 2019. [DOI: 10.1080/00032719.2019.1669630] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Orhan İçelli
- Department of Physics, Faculty of Arts and Science, Yildiz Technical University, Istanbul, Turkey
| | - Ersoy Öz
- Department of Statistics, Faculty of Arts and Science, Yildiz Technical University, Istanbul, Turkey
| | - Sezgin Bakırdere
- Department of Chemistry, Faculty of Arts and Science, Yildiz Technical University, Istanbul, Turkey
| | - Emine Nuroğlu
- Department of Physics, Faculty of Arts and Science, Yildiz Technical University, Istanbul, Turkey
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10
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MEDINA BG, SARTORI AV, MORAES MHPD, CARDOSO MHWM, JACOB SDC. Validation and application of an analytical method for the determination of mycotoxins in crackers by UPLC-MS/MS. FOOD SCIENCE AND TECHNOLOGY 2019. [DOI: 10.1590/fst.33717] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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Peltomaa R, Agudo-Maestro I, Más V, Barderas R, Benito-Peña E, Moreno-Bondi MC. Development and comparison of mimotope-based immunoassays for the analysis of fumonisin B1. Anal Bioanal Chem 2019; 411:6801-6811. [DOI: 10.1007/s00216-019-02068-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Revised: 07/22/2019] [Accepted: 08/01/2019] [Indexed: 11/28/2022]
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12
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Ertekin Ö, Kaymak T, Pirinçci ŞŞ, Akçael E, Öztürk S. Aflatoxin-specific monoclonal antibody selection for immunoaffinity column development. Biotechniques 2019; 66:261-268. [PMID: 31124703 DOI: 10.2144/btn-2018-0143] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Antibodies are the basic components of immunoanalytical systems used for detection of a wide range of analytes. Although there are some ground rules for antibody selection, analyte- and assay-specific criteria are the ones that determine the ultimate success of the immunoassays. In this study, we introduced an effective antibody selection procedure for the development of immunoaffinity columns for aflatoxins. The designed scheme puts emphasis on solvent- and matrix-related characterization steps and was used to comparatively evaluate eight monoclonal antibodies. The selected antibody was tolerant to 40% methanol, 20% acetonitrile, 30% acetone and 40% ethanol and did not interact with corn, red pepper or hazelnut extracts. Immunoaffinity columns developed with the selected antibody were validated by 15 independent aflatoxin analysis laboratories.
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Affiliation(s)
- Özlem Ertekin
- TÜBİTAK, The Scientific & Technological Research Council of Turkey, Marmara Research Center, Genetic Engineering & Biotechnology Institute, 41470 Gebze, Kocaeli, Turkey
| | - Tuğrul Kaymak
- Republic of Turkey Ministry of Food Agriculture & Livestock, General Directorate of Food & Control, Turkey
| | - Şerife Şeyda Pirinçci
- TÜBİTAK, The Scientific & Technological Research Council of Turkey, Marmara Research Center, Genetic Engineering & Biotechnology Institute, 41470 Gebze, Kocaeli, Turkey
| | - Esin Akçael
- TÜBİTAK, The Scientific & Technological Research Council of Turkey, Marmara Research Center, Genetic Engineering & Biotechnology Institute, 41470 Gebze, Kocaeli, Turkey
| | - Selma Öztürk
- TÜBİTAK, The Scientific & Technological Research Council of Turkey, Marmara Research Center, Genetic Engineering & Biotechnology Institute, 41470 Gebze, Kocaeli, Turkey
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Ertekin Ö, Kocaağa H, Öztürk S. Conjugation of Different Aflatoxin Derivatives to Proteins and Their Use as Heterologous Antigens in Immunoassay Development. ChemistrySelect 2019. [DOI: 10.1002/slct.201900098] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Özlem Ertekin
- Department Genetic Engineering and Biotechnology InstituteInstitution TÜBİTAK, The Scientific and Technological Research Council Turkey, Marmara Research Center
| | - Harun Kocaağa
- Department Genetic Engineering and Biotechnology InstituteInstitution TÜBİTAK, The Scientific and Technological Research Council Turkey, Marmara Research Center
| | - Selma Öztürk
- Department Genetic Engineering and Biotechnology InstituteInstitution TÜBİTAK, The Scientific and Technological Research Council Turkey, Marmara Research Center
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Scarpino V, Reyneri A, Blandino M. Development and Comparison of Two Multiresidue Methods for the Determination of 17 Aspergillus and Fusarium Mycotoxins in Cereals Using HPLC-ESI-TQ-MS/MS. Front Microbiol 2019; 10:361. [PMID: 30886605 PMCID: PMC6409351 DOI: 10.3389/fmicb.2019.00361] [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: 10/08/2018] [Accepted: 02/12/2019] [Indexed: 11/16/2022] Open
Abstract
Cereals can be contaminated by several mycotoxins, whose co-presence may represent an undervalued risk for humans and animals. Maize and wheat are the most contaminated cereals and in temperate areas could be affected in field conditions by several Fusarium and Aspergillus infections. To date, only B-fumonisins (FBs), aflatoxins (AFs), zearalenone (ZEA), deoxynivalenol (DON) and T-2 and HT-2 toxins have been regulated in cereals in European Union. The other fungal metabolites, are commonly referred to as "emerging" and "masked" mycotoxins, and more information on their occurrence in combination with the regulated mycotoxins, are needed to design combined toxicological and exposure assessments. This research intends to develop and compare two multiresidue HPLC-ESI-TQ-MS/MS methods for the simultaneous determination of the main regulated, emerging and masked mycotoxins in maize and wheat, among which: FB1, FB2, DON, ZEA, AFB1, AFB2, AFG1, AFG2, moniliformin (MON), deoxynivalenol-3-glucoside (DON-3-G), 3-acetyldeoxynivalenol (3-ADON), 15-acetyldeoxynivalenol (15-ADON), nivalenol (NIV), enniatins A, A1, B, B1 (ENNA, ENNA1, ENNB, ENNB1). The extraction was performed for both methods using a mixture of CH3CN/H2O/CH3COOH (79/20/1, v/v/v), while the dilution/purification was carried out through two different procedures: (1) by the "dilute-and-shoot" technique diluting 1:2 the filtered extract with CH3CN/H2O/CH3COOH (20/79/1, v/v/v) to reduce the matrix effect; (2) using the Oasis® PRiME HLB clean-up columns. The analysis was carried out using CH3OH and H2O both acidified with 0.1% of CH3COOH as eluents. The injection volume was 20 μL and the flow rate 200 μL min-1. The analysis of two reference material (maize and wheat), was performed to evaluate the trueness and precision of the two methods by matrix-matched calibration curves. For all the regulated mycotoxins analyzed by both methods, the range of recovery percentage established by the Regulation (EC) No. 401/2006 was respected, except for ZEA by using the Oasis® PRiME HLB clean-up columns. Nevertheless, the results suggest that the Oasis® PRiME HLB clean-up columns, could be a valid alternative to the dilute-and-shoot method, although an additional cost for the clean-up has to be considered. In conclusion, both two analytical methods considerably reduce the analytical time and costs and therefore result to be promising and applicable for high-throughput routine multi-mycotoxins analysis by the use of a TQ.
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Affiliation(s)
| | | | - Massimo Blandino
- Department of Agricultural, Forest and Food Sciences, University of Turin, Turin, Italy
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Mohamed MA, Mohamed AEMA, Abd-Elsalam KA. Magnetic Nanoparticles in Plant Protection: Promises and Risks. NANOTECHNOLOGY IN THE LIFE SCIENCES 2019:225-246. [DOI: 10.1007/978-3-030-16439-3_12] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
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16
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Maragos C, Sieve K, Busman M. Development of antibodies for N-(1-deoxy-D-fructos-1-yl) fumonisin B1 and cross-reaction with modified fumonisins. WORLD MYCOTOXIN J 2018. [DOI: 10.3920/wmj2018.2308] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Fumonisins are a group of mycotoxins that are routinely found worldwide in commodities such as maize. The group, which has many members, is generally characterised by the presence of one or more tricarballylic acid groups esterified to a long carbon backbone. The diversity of this group of toxins is further augmented by their ability to interact with matrix components non-covalently and to form covalent products with matrix constituents, such as carbohydrates and proteins. Covalent modifications to the toxins make it more difficult to assess the total amounts that may be present in a commodity. We developed monoclonal antibodies (Mabs) against a known product of the reaction of fumonisin B1 (FB1) with glucose: N-(1-deoxy-D-fructos-1-yl) fumonisin B1 (NDFrc-FB1). Similar reactions were used to produce fructosyl-analogs of fumonisins B2 and B3, as well as galactose, maltose, and rhamnose analogs of FB1. These analogs were tested in a competitive indirect ELISA for cross-reactivity towards one of the developed antibodies (Mab 213221). All of the carbohydrate analogs cross-reacted with the Mab, at levels ranging from 75% (the FB3 analog derived from D-glucose) to 181% (the FB1 analog derived from maltose). These results suggested the assay was capable of binding to a wide variety of fumonisin-carbohydrate derivatives. The same antibody was incorporated into an immunoaffinity column that was used to isolate modified fumonisins from a sample of naturally contaminated maize. These results demonstrate the potential to isolate and detect modified fumonisins and will facilitate efforts to determine the frequency of the occurrence of these compounds in maize.
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Affiliation(s)
- C.M. Maragos
- Mycotoxin Prevention and Applied Microbiology Research Unit, National Center for Agricultural Utilization Research, ARS, USDA, 1815 N. University Street, Peoria, IL 61604, USA
| | - K.K. Sieve
- Mycotoxin Prevention and Applied Microbiology Research Unit, National Center for Agricultural Utilization Research, ARS, USDA, 1815 N. University Street, Peoria, IL 61604, USA
| | - M. Busman
- Mycotoxin Prevention and Applied Microbiology Research Unit, National Center for Agricultural Utilization Research, ARS, USDA, 1815 N. University Street, Peoria, IL 61604, USA
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Peltomaa R, Amaro-Torres F, Carrasco S, Orellana G, Benito-Peña E, Moreno-Bondi MC. Homogeneous Quenching Immunoassay for Fumonisin B 1 Based on Gold Nanoparticles and an Epitope-Mimicking Yellow Fluorescent Protein. ACS NANO 2018; 12:11333-11342. [PMID: 30481972 DOI: 10.1021/acsnano.8b06094] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Homogeneous immunoassays represent an attractive alternative to traditional heterogeneous assays due to their simplicity, sensitivity, and speed. On the basis of a previously identified epitope-mimicking peptide, or mimotope, we developed a homogeneous fluorescence quenching immunoassay based on gold nanoparticles (AuNPs) and a recombinant epitope-mimicking fusion protein for the detection of mycotoxin fumonisin B1 (FB1). The fumonisin mimotope was cloned as a fusion protein with a yellow fluorescent protein that could be used directly as the tracer for FB1 detection without the need of labeling or a secondary antibody. Furthermore, owing to the fluorescence quenching ability of AuNPs, a homogeneous immunoassay could be performed in a single step without washing steps to separate the unbound tracer. The homogeneous quenching assay showed negligible matrix effects in 5% wheat extract and high sensitivity for FB1 detection, with a dynamic range from 7.3 to 22.6 ng mL-1, a detection limit of 1.1 ng mL-1, and IC50 value of 12.9 ng mL-1, which was significantly lower than the IC50 value of the previously reported assay using the synthetic counterpart of the same mimotope in a microarray format. The homogeneous assay was demonstrated to be specific for fumonisins B1 and B2, as no significant cross-reactivity with other mycotoxins was observed, and acceptable recoveries (86% for FB1 2000 μg kg-1 and 103% for FB1 4000 μg kg-1), with relative standard deviation less than 6.5%, were reported from spiked wheat samples, proving that the method could provide a valuable tool for simple analysis of mycotoxin-contaminated food samples.
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Ciasca B, Pascale M, Altieri VG, Longobardi F, Suman M, Catellani D, Lattanzio VMT. In-house validation and small-scale collaborative study to evaluate analytical performances of multimycotoxin screening methods based on liquid chromatography-high-resolution mass spectrometry: Case study on Fusarium toxins in wheat. JOURNAL OF MASS SPECTROMETRY : JMS 2018; 53:743-752. [PMID: 29677705 DOI: 10.1002/jms.4089] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 03/07/2018] [Accepted: 03/28/2018] [Indexed: 05/20/2023]
Abstract
A strong trend toward using highly selective mass spectrometry technologies for screening of multiple mycotoxins has been observed in recent years. In the present study, the process of validation of a multimycotoxin screening method based on liquid chromatography-high-resolution mass spectrometry method is presented. The method was intended for the simultaneous screening of the major Fusarium toxins (deoxynivalenol, 3- and 15-acetyl deoxynivalenol, T-2 and HT-2 toxins, zearalenone, enniatins A, A1, B, and B1, and beauvericin) in wheat. The sample preparation protocol was based on a double extraction (methanol followed by acetonitrile/water mixture) and purification through solid-phase extraction C18 column. To provide insights for full exploitation of the potential of the double-stage high-resolution mass spectrometry detection, a full-scan acquisition event followed by a sequence of 5 fragmentation events (variable data-independent acquisition) was set for mycotoxin detection, the latter to be exploited for confirmatory purposes. Method analytical performances were evaluated through in-house validation and small-scale interlaboratory study, designed according to Commission Regulation 519/2014/EU, setting performance requirements for screening methods for mycotoxins. Screening target concentrations were close to European Union maximum permitted or indicative levels. The in-house validation provided the precision of the response under repeatability conditions and the intermediate precision (both resulting lower than 30%), the cutoff value, and the rate of false suspect results for negative (free of the mycotoxin of interest) samples, which resulted lower than 0.1% in all cases. The collaborative study provided reproducibility and laboratory independent cutoff values. Analysis of reference materials proved method trueness and suitability for screening of the major Fusarium mycotoxins in wheat. Finally, the applicability of the full-scan/variable data-independent acquisition detection approach was successfully tested on a set of naturally contaminated wheat samples, where 2 characteristic product ions could be detected for all identified mycotoxins even at levels in the low μg/kg range.
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Affiliation(s)
- Biancamaria Ciasca
- Institute of Sciences of Food Production, National Research Council of Italy, Bari, Italy
| | - Michelangelo Pascale
- Institute of Sciences of Food Production, National Research Council of Italy, Bari, Italy
| | | | | | - Michele Suman
- Barilla SpA, Advanced Laboratory Research, via Mantova 166, 43122, Parma, Italy
| | - Dante Catellani
- Barilla SpA, Advanced Laboratory Research, via Mantova 166, 43122, Parma, Italy
| | - Veronica M T Lattanzio
- Institute of Sciences of Food Production, National Research Council of Italy, Bari, Italy
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Yadav I, Nayak SK, Rathnam VS, Banerjee I, Ray SS, Anis A, Pal K. Reinforcing effect of graphene oxide reinforcement on the properties of poly (vinyl alcohol) and carboxymethyl tamarind gum based phase-separated film. J Mech Behav Biomed Mater 2018; 81:61-71. [DOI: 10.1016/j.jmbbm.2018.02.021] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Revised: 02/11/2018] [Accepted: 02/17/2018] [Indexed: 12/26/2022]
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Anorectic response to the trichothecene T-2 toxin correspond to plasma elevations of the satiety hormone glucose-dependent insulinotropic polypeptide and peptide YY 3-36. Toxicology 2018; 402-403:28-36. [PMID: 29689362 DOI: 10.1016/j.tox.2018.04.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2018] [Revised: 03/30/2018] [Accepted: 04/19/2018] [Indexed: 12/25/2022]
Abstract
T-2 toxin, a potent type A trichothecene mycotoxin, is produced by various Fusarium species and can negatively impact animal and human health. Although anorexia induction is a common hallmark of T-2 toxin-induced toxicity, the underlying mechanisms for this adverse effect are not fully understood. The goal of this study was to determine the roles of two gut satiety hormones, glucose-dependent insulinotropic polypeptide (GIP) and Peptide YY3-36 (PYY3-36) in anorexia induction by T-2 toxin. Elevations of plasma GIP and PYY3-36 markedly corresponded to anorexia induction following oral exposure to T-2 toxin using a nocturnal mouse anorexia model. Direct administration of exogenous GIP and PYY3-36 similarly induced anorectic responses. Furthermore, the GIP receptor antagonist Pro3GIP dose-dependently attenuated both GIP- and T-2 toxin-induced anorectic responses. Pretreatment with NPY2 receptor antagonist JNJ-31020028 induced a dose-dependent attenuation of both PYY3-36- and T-2 toxin-induced anorectic responses. To summarize, these findings suggest that both GIP and PYY3-36 might be critical mediators of anorexia induction by T-2 toxin.
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Molinero-Fernández Á, Jodra A, Moreno-Guzmán M, López MÁ, Escarpa A. Magnetic Reduced Graphene Oxide/Nickel/Platinum Nanoparticles Micromotors for Mycotoxin Analysis. Chemistry 2018; 24:7172-7176. [DOI: 10.1002/chem.201706095] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Indexed: 12/31/2022]
Affiliation(s)
- Águeda Molinero-Fernández
- Department of Analytical Chemistry, Physical Chemistry and Chemical Engineering; University of Alcalá; Carretera Madrid-Barcelona, Km. 33,600 28871 Alcalá de Henares, Madrid Spain
| | - Adrián Jodra
- Department of Analytical Chemistry, Physical Chemistry and Chemical Engineering; University of Alcalá; Carretera Madrid-Barcelona, Km. 33,600 28871 Alcalá de Henares, Madrid Spain
| | - María Moreno-Guzmán
- Department of Analytical Chemistry, Physical Chemistry and Chemical Engineering; University of Alcalá; Carretera Madrid-Barcelona, Km. 33,600 28871 Alcalá de Henares, Madrid Spain
| | - Miguel Ángel López
- Department of Analytical Chemistry, Physical Chemistry and Chemical Engineering; University of Alcalá; Carretera Madrid-Barcelona, Km. 33,600 28871 Alcalá de Henares, Madrid Spain
| | - Alberto Escarpa
- Department of Analytical Chemistry, Physical Chemistry and Chemical Engineering; University of Alcalá; Carretera Madrid-Barcelona, Km. 33,600 28871 Alcalá de Henares, Madrid Spain
- Chemical Research Institute “Andrés M. del Río” (IQAR); University of Alcalá; Carretera Madrid-Barcelona, Km. 33,600, Alcalá de Henares 28871 Madrid Spain
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Label-Free QCM Immunosensor for the Detection of Ochratoxin A. SENSORS 2018; 18:s18041161. [PMID: 29641432 PMCID: PMC5948555 DOI: 10.3390/s18041161] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/03/2018] [Revised: 03/05/2018] [Accepted: 03/08/2018] [Indexed: 02/05/2023]
Abstract
Ochratoxin A (OTA) is a potent mycotoxin that poses a risk in food and feed moieties and subject to worldwide regulation. Laboratory-based analytical methods are traditionally employed for reliable OTA quantification, but these methods cannot provide rapid and on-site analysis, where biosensors fill this gap. In this study a label-free quartz crystal microbalance (QCM)-based immunosensor for the detection of OTA, which is one of the most important small molecule contaminants, was developed by direct immobilization of OTA to amine-bearing sensor surfaces using 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide (EDC)/N-Hydroxysuccinimide (NHS) chemistry. The protein-free sensor surface enabled regeneration of sensor surface with 50 mM NaOH and 1% SDS up to 13 times without loss of performance, which would disrupt a protein-containing sensor surface. We developed a QCM immunosensor using the developed sensor surface with a 17.2–200 ng/mL detection range which can be used for on-site detection of feedstuffs.
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Gambacorta L, Magistà D, Perrone G, Murgolo S, Logrieco A, Solfrizzo M. Co-occurrence of toxigenic moulds, aflatoxins, ochratoxin A, Fusarium and Alternaria mycotoxins in fresh sweet peppers (Capsicum annuum) and their processed products. WORLD MYCOTOXIN J 2018. [DOI: 10.3920/wmj2017.2271] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Forty-five samples of a landrace of sweet pepper (Capsicum annuum) widely cultivated in Basilicata (Italy) were screened for 17 mycotoxins and potential toxigenic fungal species. Two different LC-MS/MS methods were used for the determination of aflatoxins, ochratoxin A (OTA), Fusarium mycotoxins zearalenone (ZEA), fumonisins (FB1 and FB2), nivalenol (NIV), deoxynivalenol (DON), T-2 and HT-2 toxins and Alternaria mycotoxins altenuene (ALT), alternariol (AOH), alternariol monomethyl ether (AME), tentoxin (TTX) and tenuazonic acid (TeA). Frequency of potential toxigenic fungal species occurrence was: 87% Aspergillus Sect. Nigri; 58% Aspergillus Sect. Flavi; 38% Aspergillus Sect. Circumdati; 42% Alternaria spp.; 33% Penicillium spp. and 20% Fusarium spp. Frequency of mycotoxin occurrence and mean of positives were: 51% OTA, 29.5 µg/kg, 5 samples above the EU limit of 20 µg/kg; 31% aflatoxins, 12.8 µg/kg, two samples above the EU limit of 5 µg/kg for aflatoxin B1; 91% ZEA, 1.4 µg/kg; 78% FB2, 7.6 µg/kg; 58% FB1, 22.8 µg/kg; 38% NIV, 39.5 µg/kg; 36% DON, 6.9 µg/kg; 20% T-2 toxin, 5.6 µg/kg and 22% HT-2 toxin, 13.8 µg/kg. For the Alternaria mycotoxins, 100% of samples contained TeA, 4817.9 µg/kg; 93% TTX, 29.7 µg/kg; 56% AOH, 114.4 µg/kg; 33% AME, 13.0 µg/kg and 9% ALT, 61.7 µg/kg. Co-occurrence of mycotoxins in each sample ranged from 2 to 16 mycotoxins (mean 7). No statistical correlation was found between moulds and their mycotoxins occurrence. Within the four groups of peppers collected herein (fresh, dried, grounded and fried) higher percentages of contamination and mycotoxin levels were measured in grounded peppers, whereas much lower values were observed for fried peppers. The high percentages of positive samples and the high levels of some mycotoxins observed in this study confirm the susceptibility of peppers to mycotoxin contamination and claims for an improvement of the conditions used during production and drying process.
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Affiliation(s)
- L. Gambacorta
- Institute of Sciences of Food Production (ISPA), National Research Council of Italy (CNR), Via Amendola 122/O, 70126 Bari, Italy
| | - D. Magistà
- Institute of Sciences of Food Production (ISPA), National Research Council of Italy (CNR), Via Amendola 122/O, 70126 Bari, Italy
| | - G. Perrone
- Institute of Sciences of Food Production (ISPA), National Research Council of Italy (CNR), Via Amendola 122/O, 70126 Bari, Italy
| | - S. Murgolo
- Water Research Institute (IRSA), National Research Council of Italy (CNR), 70132 Bari, Italy
| | - A.F. Logrieco
- Institute of Sciences of Food Production (ISPA), National Research Council of Italy (CNR), Via Amendola 122/O, 70126 Bari, Italy
| | - M. Solfrizzo
- Institute of Sciences of Food Production (ISPA), National Research Council of Italy (CNR), Via Amendola 122/O, 70126 Bari, Italy
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24
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Mao J, Zheng N, Wen F, Guo L, Fu C, Ouyang H, Zhong L, Wang J, Lei S. Multi-mycotoxins analysis in raw milk by ultra high performance liquid chromatography coupled to quadrupole orbitrap mass spectrometry. Food Control 2018. [DOI: 10.1016/j.foodcont.2017.08.009] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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25
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Malachová A, Stránská M, Václavíková M, Elliott CT, Black C, Meneely J, Hajšlová J, Ezekiel CN, Schuhmacher R, Krska R. Advanced LC-MS-based methods to study the co-occurrence and metabolization of multiple mycotoxins in cereals and cereal-based food. Anal Bioanal Chem 2018; 410:801-825. [PMID: 29273904 PMCID: PMC5775372 DOI: 10.1007/s00216-017-0750-7] [Citation(s) in RCA: 92] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Revised: 11/03/2017] [Accepted: 11/06/2017] [Indexed: 12/21/2022]
Abstract
Liquid chromatography (LC) coupled with mass spectrometry (MS) is widely used for the determination of mycotoxins in cereals and cereal-based products. In addition to the regulated mycotoxins, for which official control is required, LC-MS is often used for the screening of a large range of mycotoxins and/or for the identification and characterization of novel metabolites. This review provides insight into the LC-MS methods used for the determination of co-occurring mycotoxins with special emphasis on multiple-analyte applications. The first part of the review is focused on targeted LC-MS approaches using cleanup methods such as solid-phase extraction and immunoaffinity chromatography, as well as on methods based on minimum cleanup (quick, easy, cheap, effective, rugged, and safe; QuEChERS) and dilute and shoot. The second part of the review deals with the untargeted determination of mycotoxins by LC coupled with high-resolution MS, which includes also metabolomics techniques to study the fate of mycotoxins in plants.
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Affiliation(s)
- Alexandra Malachová
- Center for Analytical Chemistry, Department of Agrobiotechnology (IFA-Tulln), University of Natural Resources and Life Sciences, Vienna (BOKU), Konrad Lorenz Str. 20, 3430, Tulln, Austria
| | - Milena Stránská
- Department of Food Analysis & Nutrition, Faculty of Food & Biochemical Technology, University of Chemistry & Technology, Technická 3, 166 28, Prague 6, Czech Republic
| | - Marta Václavíková
- Center for Analytical Chemistry, Department of Agrobiotechnology (IFA-Tulln), University of Natural Resources and Life Sciences, Vienna (BOKU), Konrad Lorenz Str. 20, 3430, Tulln, Austria
| | - Christopher T Elliott
- Institute for Global Food Security, School of Biological Sciences, Queens University Belfast, 18-30 Malone Road, Belfast, BT9 5BN, UK
| | - Connor Black
- Institute for Global Food Security, School of Biological Sciences, Queens University Belfast, 18-30 Malone Road, Belfast, BT9 5BN, UK
| | - Julie Meneely
- Institute for Global Food Security, School of Biological Sciences, Queens University Belfast, 18-30 Malone Road, Belfast, BT9 5BN, UK
| | - Jana Hajšlová
- Department of Food Analysis & Nutrition, Faculty of Food & Biochemical Technology, University of Chemistry & Technology, Technická 3, 166 28, Prague 6, Czech Republic
| | - Chibundu N Ezekiel
- Department of Microbiology, Babcock University, Ilishan Remo, Ogun State, 121103, Nigeria
| | - Rainer Schuhmacher
- Center for Analytical Chemistry, Department of Agrobiotechnology (IFA-Tulln), University of Natural Resources and Life Sciences, Vienna (BOKU), Konrad Lorenz Str. 20, 3430, Tulln, Austria
| | - Rudolf Krska
- Center for Analytical Chemistry, Department of Agrobiotechnology (IFA-Tulln), University of Natural Resources and Life Sciences, Vienna (BOKU), Konrad Lorenz Str. 20, 3430, Tulln, Austria.
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26
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Qi D, Fei T, Liu H, Yao H, Wu D, Liu B. Development of Multiple Heart-Cutting Two-Dimensional Liquid Chromatography Coupled to Quadrupole-Orbitrap High Resolution Mass Spectrometry for Simultaneous Determination of Aflatoxin B 1, B 2, G 1, G 2, and Ochratoxin A in Snus, a Smokeless Tobacco Product. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:9923-9929. [PMID: 29065690 DOI: 10.1021/acs.jafc.7b04329] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The combination of multiple heart-cutting two-dimensional liquid chromatography (MHC-LC/LC) and quadrupole-orbitrap high-resolution mass spectrometry (HRMS) for simultaneous determination of the aflatoxins and ochratoxin A in snus is presented in this work. A C18 capillary column was used as the first dimension (1D) to isolate the aflatoxins and ochratoxin A from the complex matrices; then, a 2-position/10-port high-pressure valve equipped with two 60 μL loops was employed to transfer the heart-cuts of 1D-LC into a pentafluorophenyl (PFP) column for the second dimension (2D) separation. With the better separation of the MHC-LC/LC system, the sensitivity of the method was improved, which is essential for the trace mycotoxins analysis. Furthermore, HRMS performed in parallel reaction monitoring mode was employed to eliminate the interferences, and the sample pretreatment procedure was simplified. A new approach utilizing ethyl acetate with 1% formic acid/water solution was adopted to extract aflatoxins and ochratoxin A in snus, which provided parallel recoveries for aflatoxins and ochratoxin A with higher responses in comparison with the QuEChERS method. A dynamic range between 0.2 and 20 μg/kg was achieved with LOQs of 0.05 μg/kg for aflatoxin B1, 0.1 μg/kg for aflatoxin B2, G1, G2, and 1.0 μg/kg for ochratoxin A in dry mass of product. The results revealed that the established method exhibited good repeatability and recovery and could be used as a rapid and reliable approach for routine analysis of aflatoxins and ochratoxin A in snus.
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Affiliation(s)
- Dawei Qi
- Technology Center, Shanghai Tobacco Group Co. Ltd. , Changyang Road No. 717, Shanghai, 200082, P.R. China
| | - Ting Fei
- Technology Center, Shanghai Tobacco Group Co. Ltd. , Changyang Road No. 717, Shanghai, 200082, P.R. China
| | - Hong Liu
- Technology Center, Shanghai Tobacco Group Co. Ltd. , Changyang Road No. 717, Shanghai, 200082, P.R. China
| | - Heming Yao
- Technology Center, Shanghai Tobacco Group Co. Ltd. , Changyang Road No. 717, Shanghai, 200082, P.R. China
| | - Da Wu
- Technology Center, Shanghai Tobacco Group Co. Ltd. , Changyang Road No. 717, Shanghai, 200082, P.R. China
| | - Baizhan Liu
- Technology Center, Shanghai Tobacco Group Co. Ltd. , Changyang Road No. 717, Shanghai, 200082, P.R. China
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27
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Peltomaa R, Benito-Peña E, Moreno-Bondi MC. Bioinspired recognition elements for mycotoxin sensors. Anal Bioanal Chem 2017; 410:747-771. [PMID: 29127461 DOI: 10.1007/s00216-017-0701-3] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Revised: 10/05/2017] [Accepted: 10/10/2017] [Indexed: 12/16/2022]
Abstract
Mycotoxins are low molecular weight molecules produced as secondary metabolites by filamentous fungi that can be found as natural contaminants in many foods and feeds. These toxins have been shown to have adverse effects on both human and animal health, and are the cause of significant economic losses worldwide. Sensors for mycotoxin analysis have traditionally applied elements of biological origin for the selective recognition purposes. However, since the 1970s there has been an exponential growth in the use of genetically engineered or synthetic biomimetic recognition elements that allow some of the limitations associated with the use of natural receptors for the analyses of these toxins to be circumvented. This review provides an overview of recent advances in the application of bioinspired recognition elements, including recombinant antibodies, peptides, aptamers, and molecularly imprinted polymers, to the development of sensors for mycotoxins based on different transduction elements. Graphical abstract Novel analytical methods based on bioinspired recognition elements, such as recombinant antibodies, peptides, aptamers, and molecularly imprinted polymers, can improve the detection of mycotoxins and provide better tools than their natural counterparts to ensure food safety.
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Affiliation(s)
- Riikka Peltomaa
- Department of Analytical Chemistry, Faculty of Chemistry, Universidad Complutense de Madrid, Av. Complutense s/n, 28040, Madrid, Spain
| | - Elena Benito-Peña
- Department of Analytical Chemistry, Faculty of Chemistry, Universidad Complutense de Madrid, Av. Complutense s/n, 28040, Madrid, Spain
| | - María C Moreno-Bondi
- Department of Analytical Chemistry, Faculty of Chemistry, Universidad Complutense de Madrid, Av. Complutense s/n, 28040, Madrid, Spain.
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28
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Smith LL, Francis KA, Johnson JT, Gaskill CL. Quantitation of fumonisin B 1 and B 2 in feed using FMOC pre-column derivatization with HPLC and fluorescence detection. Food Chem 2017; 234:174-179. [DOI: 10.1016/j.foodchem.2017.04.142] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2016] [Accepted: 04/23/2017] [Indexed: 11/26/2022]
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29
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Gruber-Dorninger C, Novak B, Nagl V, Berthiller F. Emerging Mycotoxins: Beyond Traditionally Determined Food Contaminants. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:7052-7070. [PMID: 27599910 DOI: 10.1021/acs.jafc.6b03413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Modern analytical techniques can determine a multitude of fungal metabolites contaminating food and feed. In addition to known mycotoxins, for which maximum levels in food are enforced, also currently unregulated, so-called "emerging mycotoxins" were shown to occur frequently in agricultural products. The aim of this review is to critically discuss the relevance of selected emerging mycotoxins to food and feed safety. Acute and chronic toxicity as well as occurrence data are presented for enniatins, beauvericin, moniliformin, fusaproliferin, fusaric acid, culmorin, butenolide, sterigmatocystin, emodin, mycophenolic acid, alternariol, alternariol monomethyl ether, and tenuazonic acid. By far not all of the detected compounds are toxicologically relevant at their naturally occurring levels and are therefore of little or no health concern to consumers. Still, gaps in knowledge have been identified for several compounds. These gaps should be closed by the scientific community in the coming years to allow a proper risk assessment.
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Affiliation(s)
| | - Barbara Novak
- BIOMIN Research Center , Technopark 1, 3430 Tulln, Austria
| | - Veronika Nagl
- BIOMIN Research Center , Technopark 1, 3430 Tulln, Austria
| | - Franz Berthiller
- Christian Doppler Laboratory for Mycotoxin Metabolism and Center for Analytical Chemistry, Department of Agrobiotechnology (IFA-Tulln), University of Natural Resources and Life Sciences, Vienna (BOKU) , Konrad-Lorenz-Strasse 20, 3430 Tulln, Austria
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30
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Determination of Mycotoxins in Cereal-Based Porridge Destined for Infant Consumption by Ultra-High Performance Liquid Chromatography-Tandem Mass Spectrometry. FOOD ANAL METHOD 2017. [DOI: 10.1007/s12161-017-0965-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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31
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Development of a LC-MS/MS Method for the Multi-Mycotoxin Determination in Composite Cereal-Based Samples. Toxins (Basel) 2017; 9:toxins9050169. [PMID: 28524101 PMCID: PMC5450717 DOI: 10.3390/toxins9050169] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Revised: 05/08/2017] [Accepted: 05/10/2017] [Indexed: 12/21/2022] Open
Abstract
The analytical scenario for determining contaminants in the food and feed sector is constantly prompted by the progress and improvement of knowledge and expertise of researchers and by the technical innovation of the instrumentation available. Mycotoxins are agricultural contaminants of fungal origin occurring at all latitudes worldwide and being characterized by acute and chronic effects on human health and animal wellness, depending on the species sensitivity. The major mycotoxins of food concern are aflatoxin B1 and ochratoxin A, the first for its toxicity, and the second for its recurrent occurrence. However, the European legislation sets maximum limits for mycotoxins, such as aflatoxin B1, ochratoxin A, deoxynivalenol, fumonisins, and zearalenone, and indicative limits for T-2 and HT-2 toxins. Due to the actual probability that co-occurring mycotoxins are present in a food or feed product, nowadays, the availability of reliable, sensitive, and versatile multi-mycotoxin methods is assuming a relevant importance. Due to the wide range of matrices susceptible to mycotoxin contamination and the possible co-occurrence, a multi-mycotoxin and multi-matrix method was validated in liquid chromatography-tandem mass spectrometry (LC-MS/MS) with the purpose to overcome specific matrix effects and analyze complex cereal-based samples within the Italian Total Diet Study project.
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Peltomaa R, Benito-Peña E, Barderas R, Sauer U, González Andrade M, Moreno-Bondi MC. Microarray-Based Immunoassay with Synthetic Mimotopes for the Detection of Fumonisin B1. Anal Chem 2017; 89:6216-6223. [DOI: 10.1021/acs.analchem.7b01178] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
| | | | | | - Ursula Sauer
- Center
for Health and Bioresources, AIT Austrian Institute of Technology GmbH, Konrad-Lorenz-Straße 24, 3430 Tulln, Austria
| | - Martin González Andrade
- Department
of Biochemistry, Faculty of Medicine, Universidad Nacional Autónoma de México, Ciudad Universitaria, Coyoacán D.F., México
City 04510, México
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33
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Berthiller F, Brera C, Iha M, Krska R, Lattanzio V, MacDonald S, Malone R, Maragos C, Solfrizzo M, Stranska-Zachariasova M, Stroka J, Tittlemier S. Developments in mycotoxin analysis: an update for 2015-2016. WORLD MYCOTOXIN J 2017. [DOI: 10.3920/wmj2016.2138] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
This review summarises developments in the determination of mycotoxins over a period between mid-2015 and mid-2016. Analytical methods to determine aflatoxins, Alternaria toxins, ergot alkaloids, fumonisins, ochratoxins, patulin, trichothecenes and zearalenone are covered in individual sections. Advances in proper sampling strategies are discussed in a dedicated section, as are methods used to analyse botanicals and spices and newly developed liquid chromatography mass spectrometry based multi-mycotoxin methods. This critical review aims to briefly discuss the most important recent developments and trends in mycotoxin determination as well as to address limitations of presented methodologies.
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Affiliation(s)
- F. Berthiller
- Christian Doppler Laboratory for Mycotoxin Metabolism and Center for Analytical Chemistry, Department of Agrobiotechnology (IFA-Tulln), University of Natural Resources and Life Sciences, Vienna, Konrad Lorenz Str. 20, 3430 Tulln, Austria
| | - C. Brera
- Istituto Superiore di Sanità, Department of Veterinary Public Health and Food Safety – GMO and Mycotoxins Unit, Viale Regina Elena 299, 00161 Rome, Italy
| | - M.H. Iha
- Adolfo Lutz Institute of Ribeirão Preto, Nucleous of Chemistry and Bromatology Science, Rua Minas 866, Ribeirão Preto, SP 14085-410, Brazil
| | - R. Krska
- Christian Doppler Laboratory for Mycotoxin Metabolism and Center for Analytical Chemistry, Department of Agrobiotechnology (IFA-Tulln), University of Natural Resources and Life Sciences, Vienna, Konrad Lorenz Str. 20, 3430 Tulln, Austria
| | - V.M.T. Lattanzio
- National Research Council, Institute of Sciences of Food Production, Via Amendola 122/o, 700126 Bari, Italy
| | - S. MacDonald
- Fera Science Ltd., Sand Hutton, York YO41 1LZ, United Kingdom
| | - R.J. Malone
- Trilogy Analytical Laboratory, 870 Vossbrink Dr, Washington, MO 63090, USA
| | - C. Maragos
- USDA-ARS-NCAUR, Mycotoxin Prevention and Applied Microbiology Research Unit, 1815 N. University St, Peoria, IL 61604, USA
| | - M. Solfrizzo
- National Research Council, Institute of Sciences of Food Production, Via Amendola 122/o, 700126 Bari, Italy
| | - M. Stranska-Zachariasova
- Department of Food Analysis and Nutrition, Faculty of Food and Biochemical Technology, University of Chemistry and Technology, Prague 6, Czech Republic
| | - J. Stroka
- European Commission, Joint Research Centre, Retieseweg, 2440 Geel, Belgium
| | - S.A. Tittlemier
- Canadian Grain Commission, Grain Research Laboratory, 1404-303 Main St, Winnipeg, MB R3C 3G8, Canada
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Abstract
Alternariais one of the major mycotoxigenic fungal genera with more than 70 reported metabolites.Alternariamycotoxins showed notably toxicity, such as mutagenicity, carcinogenicity, induction of DNA strand break, sphingolipid metabolism disruption, or inhibition of enzymes activity and photophosphorylation. This review reports on the toxicity, stability, metabolism, current analytical methods, and prevalence ofAlternariamycotoxins in food and feed through the most recent published research. Half of the publications were focused on fruits, vegetables, and derived products—mainly tomato and apples—while cereals and cereal by-products represented 38%. The most studied compounds were alternariol, alternariol methyl ether, tentoxin, and tenuazonic acid, but altenuene, altertoxins (I, II, and III), and macrosporin have been gaining importance in recent years. Solid-liquid extraction (50%) with acetonitrile or ethyl acetate was the most common extraction methodology, followed by QuEChERS and dilution-direct injection (both 14%). High- and ultraperformance liquid chromatography coupled with tandem mass spectrometry was the predominant determination technique (80%). The highest levels of alternariol and alternariol methyl ether were found in lentils, oilseeds, tomatoes, carrots, juices, wines, and cereals. Tenuazonic acid highest levels were detected in cereals followed by beer, while alternariol, alternariol methyl ether, tenuazonic acid, and tentoxin were found in legumes, nuts, and oilseeds.
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35
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Krska R, Sulyok M, Berthiller F, Schuhmacher R. Mycotoxin testing: From Multi-toxin analysis to metabolomics. ACTA ACUST UNITED AC 2017. [DOI: 10.2520/myco.67-1-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Affiliation(s)
- Rudolf Krska
- University of Natural Resources and Life Sciences, Vienna, Department of Agrobiotechnology (IFA-Tulln), Center for Analytical Chemistry
| | - Michael Sulyok
- University of Natural Resources and Life Sciences, Vienna, Department of Agrobiotechnology (IFA-Tulln), Center for Analytical Chemistry
| | - Franz Berthiller
- University of Natural Resources and Life Sciences, Vienna, Department of Agrobiotechnology (IFA-Tulln), Center for Analytical Chemistry
| | - Rainer Schuhmacher
- University of Natural Resources and Life Sciences, Vienna, Department of Agrobiotechnology (IFA-Tulln), Center for Analytical Chemistry
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De Girolamo A, Ciasca B, Stroka J, Bratinova S, Pascale M, Visconti A, Lattanzio VM. Performance evaluation of LC–MS/MS methods for multi-mycotoxin determination in maize and wheat by means of international Proficiency Testing. Trends Analyt Chem 2017. [DOI: 10.1016/j.trac.2016.11.005] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Metabolism of HT-2 Toxin and T-2 Toxin in Oats. Toxins (Basel) 2016; 8:toxins8120364. [PMID: 27929394 PMCID: PMC5198558 DOI: 10.3390/toxins8120364] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Revised: 11/17/2016] [Accepted: 11/24/2016] [Indexed: 12/31/2022] Open
Abstract
The Fusarium mycotoxins HT-2 toxin (HT2) and T-2 toxin (T2) are frequent contaminants in oats. These toxins, but also their plant metabolites, may contribute to toxicological effects. This work describes the use of 13C-assisted liquid chromatography-high-resolution mass spectrometry for the first comprehensive study on the biotransformation of HT2 and T2 in oats. Using this approach, 16 HT2 and 17 T2 metabolites were annotated including novel glycosylated and hydroxylated forms of the toxins, hydrolysis products, and conjugates with acetic acid, putative malic acid, malonic acid, and ferulic acid. Further targeted quantitative analysis was performed to study toxin metabolism over time, as well as toxin and conjugate mobility within non-treated plant tissues. As a result, HT2-3-O-β-d-glucoside was identified as the major detoxification product of both parent toxins, which was rapidly formed (to an extent of 74% in HT2-treated and 48% in T2-treated oats within one day after treatment) and further metabolised. Mobility of the parent toxins appeared to be negligible, while HT2-3-O-β-d-glucoside was partly transported (up to approximately 4%) through panicle side branches and stem. Our findings demonstrate that the presented combination of untargeted and targeted analysis is well suited for the comprehensive elucidation of mycotoxin metabolism in plants.
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Righetti L, Paglia G, Galaverna G, Dall'Asta C. Recent Advances and Future Challenges in Modified Mycotoxin Analysis: Why HRMS Has Become a Key Instrument in Food Contaminant Research. Toxins (Basel) 2016; 8:E361. [PMID: 27918432 PMCID: PMC5198555 DOI: 10.3390/toxins8120361] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2016] [Revised: 11/23/2016] [Accepted: 11/25/2016] [Indexed: 01/24/2023] Open
Abstract
Mycotoxins are secondary metabolites produced by pathogenic fungi in crops worldwide. These compounds can undergo modification in plants, leading to the formation of a large number of possible modified forms, whose toxicological relevance and occurrence in food and feed is still largely unexplored. The analysis of modified mycotoxins by liquid chromatography-mass spectrometry remains a challenge because of their chemical diversity, the large number of isomeric forms, and the lack of analytical standards. Here, the potential benefits of high-resolution and ion mobility mass spectrometry as a tool for separation and structure confirmation of modified mycotoxins have been investigated/reviewed.
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Affiliation(s)
- Laura Righetti
- Department of Food Science, University of Parma, Parco Area delle Scienze 95/A, Parma 43124, Italy.
| | - Giuseppe Paglia
- Center of Biomedicine, European Academy of Bolzano/Bozen, Via Galvani 31, Bolzano 39100, Italy.
| | - Gianni Galaverna
- Department of Food Science, University of Parma, Parco Area delle Scienze 95/A, Parma 43124, Italy.
| | - Chiara Dall'Asta
- Department of Food Science, University of Parma, Parco Area delle Scienze 95/A, Parma 43124, Italy.
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Effect of Fusarium-Derived Metabolites on the Barrier Integrity of Differentiated Intestinal Porcine Epithelial Cells (IPEC-J2). Toxins (Basel) 2016; 8:toxins8110345. [PMID: 27869761 PMCID: PMC5127141 DOI: 10.3390/toxins8110345] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Revised: 10/20/2016] [Accepted: 11/15/2016] [Indexed: 12/20/2022] Open
Abstract
The human, animal and plant pathogen Fusarium, which contaminates agricultural commodities worldwide, produces numerous secondary metabolites. An example is the thoroughly-investigated deoxynivalenol (DON), which severely impairs gastrointestinal barrier integrity. However, to date, the toxicological profile of other Fusarium-derived metabolites, such as enniatins, beauvericin, moniliformin, apicidin, aurofusarin, rubrofusarin, equisetin and bikaverin, are poorly characterized. Thus we examined their effects—as metabolites alone and as metabolites in combination with DON—on the intestinal barrier function of differentiated intestinal porcine epithelial cells (IPEC-J2) over 72 h. Transepithelial electrical resistance (TEER) was measured at 24-h intervals, followed by evaluation of cell viability using neutral red (NR) assay. Enniatins A, A1, B and B1, apicidin, aurofusarin and beauvericin significantly reduced TEER. Moniliformin, equisetin, bikaverin and rubrofusarin had no effect on TEER. In the case of apicidin, aurofusarin and beauvericin, TEER reductions were further substantiated by the addition of otherwise no-effect DON concentrations. In all cases, viability was unaffected, confirming that TEER reductions were not due to compromised viability. Considering the prevalence of mycotoxin contamination and the diseases associated with intestinal barrier disruption, consumption of contaminated food or feed may have substantial health implications.
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McKeague M, Velu R, De Girolamo A, Valenzano S, Pascale M, Smith M, DeRosa MC. Comparison of In-Solution Biorecognition Properties of Aptamers against Ochratoxin A. Toxins (Basel) 2016; 8:toxins8110336. [PMID: 27854269 PMCID: PMC5127132 DOI: 10.3390/toxins8110336] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2016] [Revised: 11/02/2016] [Accepted: 11/08/2016] [Indexed: 12/28/2022] Open
Abstract
Ochratoxin A (OTA) is a mycotoxin produced as a secondary metabolite by several species of Aspergillus and Penicillium and frequently found as a natural contaminant in a wide range of food commodities. Novel and robust biorecognition agents for detecting this molecule are required. Aptamers are artificial nucleic acid ligands able to bind with high affinity and specificity to a given target molecule. In the last few years, three separate research groups have selected aptamers for ochratoxin A. While each of these three families of aptamers have been incorporated into various methods for detecting OTA, it is unclear if each aptamer candidate is better suited for a particular application. Here, we perform the first head-to-head comparison of solution-based binding parameters for these groups of aptamers. Based on our results, we provide recommendations for the appropriate choice of aptamer for incorporation into solution-based biorecognition assays and applications.
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Affiliation(s)
- Maureen McKeague
- Chemistry Department, Carleton University, 1125 Colonel by Drive, Ottawa, ON K1S 5B6, Canada.
| | - Ranganathan Velu
- Chemistry Department, Carleton University, 1125 Colonel by Drive, Ottawa, ON K1S 5B6, Canada.
| | - Annalisa De Girolamo
- Institute of Sciences of Food Production, National Research Council of Italy, via G. Amendola 122/O, Bari 70126, Italy.
| | - Stefania Valenzano
- Institute of Sciences of Food Production, National Research Council of Italy, via G. Amendola 122/O, Bari 70126, Italy.
| | - Michelangelo Pascale
- Institute of Sciences of Food Production, National Research Council of Italy, via G. Amendola 122/O, Bari 70126, Italy.
| | - McKenzie Smith
- Chemistry Department, Carleton University, 1125 Colonel by Drive, Ottawa, ON K1S 5B6, Canada.
| | - Maria C DeRosa
- Chemistry Department, Carleton University, 1125 Colonel by Drive, Ottawa, ON K1S 5B6, Canada.
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Joshi S, Annida RM, Zuilhof H, van Beek TA, Nielen MWF. Analysis of Mycotoxins in Beer Using a Portable Nanostructured Imaging Surface Plasmon Resonance Biosensor. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2016; 64:8263-8271. [PMID: 27709929 DOI: 10.1021/acs.jafc.6b04106] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
A competitive inhibition immunoassay is described for the mycotoxins deoxynivalenol (DON) and ochratoxin A (OTA) in beer using a portable nanostructured imaging surface plasmon resonance (iSPR) biosensor, also referred to as imaging nanoplasmonics. The toxins were directly and covalently immobilized on a 3-dimensional carboxymethylated dextran (CMD) layer on a nanostructured iSPR chip. The assay is based on competition between the immobilized mycotoxins and free mycotoxins in the solution for binding to specific antibodies. The chip surface was regenerated after each cycle, and the combination of CMD and direct immobilization of toxins allowed the chips to be used for more than 450 cycles. The limits of detection (LODs) in beer were 17 ng/mL for DON and 7 ng/mL for OTA (or 0.09 ng/mL after 75 times enrichment). These LODs allowed detection of even less than 10% depletion of the tolerable daily intake of DON and OTA by beer. Significant cross-reactivity of anti-DON was observed toward DON-3-glucoside and 3-acetyl-DON, while no cross-reactivity was seen for 15-acetyl-DON. A preliminary in-house validation with 20 different batches of beer showed that both toxins can be detected at the considered theoretical safe level for beer. The assay can be used for in-field or at-line detection of DON in beer and also in barley without preconcentration, while OTA in beer requires an additional enrichment step, thus making the latter in its present form less suitable for field applications.
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Affiliation(s)
- Sweccha Joshi
- Laboratory of Organic Chemistry, Wageningen University , Stippeneng 4, 6708 WE Wageningen, The Netherlands
- TI-COAST , Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Rumaisha M Annida
- Laboratory of Organic Chemistry, Wageningen University , Stippeneng 4, 6708 WE Wageningen, The Netherlands
| | - Han Zuilhof
- Laboratory of Organic Chemistry, Wageningen University , Stippeneng 4, 6708 WE Wageningen, The Netherlands
| | - Teris A van Beek
- Laboratory of Organic Chemistry, Wageningen University , Stippeneng 4, 6708 WE Wageningen, The Netherlands
| | - Michel W F Nielen
- Laboratory of Organic Chemistry, Wageningen University , Stippeneng 4, 6708 WE Wageningen, The Netherlands
- RIKILT Wageningen University & Research , P.O. Box 230, 6700 AE, Wageningen, The Netherlands
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Assunção R, Silva M, Alvito P. Challenges in risk assessment of multiple mycotoxins in food. WORLD MYCOTOXIN J 2016. [DOI: 10.3920/wmj2016.2039] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Most fungi are able to produce several mycotoxins simultaneously and, consequently, to contaminate a wide variety of foodstuffs. Therefore, the risk of human co-exposure to multiple mycotoxins is real, raising a growing concern about their potential impact on human health. Besides, government and industry regulations are usually based on individual toxicities, and do not take into account the complex dynamics associated with interactions between co-occurring groups of mycotoxins. The present work assembles, for the first time, the challenges posed by the likelihood of human co-exposure to these toxins and the possibility of interactive effects occurring after absorption, towards knowledge generation to support a more accurate human risk assessment. Regarding hazard assessment, a physiologically-based framework is proposed in order to infer the health effects from exposure to multiple mycotoxins in food, including knowledge on the bioaccessibility, toxicokinetics and toxicodynamics of single and combined toxins. The prioritisation of the most relevant mixtures to be tested under experimental conditions that attempt to mimic human exposure and the use of adequate mathematical approaches to evaluate interactions, particularly concerning the combined genotoxicity, were identified as the main challenges for hazard assessment. Regarding exposure assessment, the need of harmonised food consumption data, availability of multianalyte methods for mycotoxin quantification, management of left-censored data, use of probabilistic models and multibiomarker approaches are highlighted, in order to develop a more precise and realistic exposure assessment. To conclude, further studies on hazard and exposure assessment of multiple mycotoxins, using harmonised methodologies, are crucial towards an improvement of data quality and a more reliable and robust risk characterisation, which is central for risk management and, consequently, to prevent mycotoxins-associated adverse effects. A deep understanding of the nature of interactions between multiple mycotoxins will contribute to draw real conclusions on the health impact of human exposure to mycotoxin mixtures.
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Affiliation(s)
- R. Assunção
- Food and Nutrition Department, National Institute of Health Doutor Ricardo Jorge, I.P. (INSA), Av. Padre Cruz, 1649-016 Lisbon, Portugal
- Centre for Environmental and Marine Studies (CESAM), University of Aveiro, Campus de Santiago 3810-193 Aveiro, Portugal
- IIFA, Universidade de Évora, Palácio do Vimioso, Largo Marquês de Marialva, Apartado 94, 7002-554 Évora, Portugal
| | - M.J. Silva
- Department of Human Genetics, National Institute of Health Doutor Ricardo Jorge, I.P. (INSA), Av. Padre Cruz, 1649-016 Lisbon, Portugal
- Center for Toxicogenomics and Human Health (ToxOmics), Nova Medical School, FCM-UNL, Campo Mártires da Pátria 130, 1169-056 Lisbon, Portugal
| | - P. Alvito
- Food and Nutrition Department, National Institute of Health Doutor Ricardo Jorge, I.P. (INSA), Av. Padre Cruz, 1649-016 Lisbon, Portugal
- Centre for Environmental and Marine Studies (CESAM), University of Aveiro, Campus de Santiago 3810-193 Aveiro, Portugal
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Affiliation(s)
- Paola Battilani
- Department of Sustainable Crop Production, Università Cattolica del Sacro Cuore, Piacenza, Italy
| | - Joerg Stroka
- Joint Research Centre, IRMM, European Commission, Geel, Belgium
| | - Naresh Magan
- Applied Mycology Group, Cranfield University, Cranfield, United Kingdom
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Rigobello F, e Silva PLÁ, Yamashita C, Lenhard-Vidal A, Ishikawa A, Kawamura O, Hirooka E, Itano E. Ochratoxin A levels in plasma from inhabitants of northern Paraná, Brazil. WORLD MYCOTOXIN J 2016. [DOI: 10.3920/wmj2016.2093] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Ochratoxin A (OTA), a mycotoxin produced by some fungi like Aspergillus ochraceus, Aspergillus niger, Aspergillus carbonarius and Penicillium viridicatum, is a natural contaminant of many foods worldwide. The intake of OTA is associated with deleterious effects to humans and animals, such as nephro- and hepatotoxicity. Although there are some data about food contamination, there is lack of data about human exposure to OTA in Brazil. Therefore, current research aimed to determine the level of human exposure to OTA and, additionally, identify possible associations with biomarkers of liver and kidney damage. OTA levels were evaluated in plasma samples from 149 individuals living in the state of Paraná, Brazil, by indirect competitive ELISA using monoclonal antibody anti-OTA (cell line OTA.7). Plasma levels of OTA, alanine aminotransferase, aspartate aminotransferase, urea and creatinine were submitted to Pearson's correlation test. It was possible to measure OTA levels in 54.4% of the samples (mean 734±296 pg/ml; maximum 1,585 pg/ml), with an estimated daily intake of 983-1,445 pg/kg body weight. There was no correlation between OTA plasma levels and biochemical parameters, possibly due to the low level of contamination. This is one of the first studies concerning the contamination of humans by OTA in Brazil and we conclude that the plasma levels of the evaluated population indicate an estimated weekly intake below the tolerable weekly intake derived by the EFSA Panel on Contaminants in the Food Chain. Nevertheless, additional longitudinal studies with greater regional coverage and at different seasonal periods are necessary.
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Affiliation(s)
- F.F. Rigobello
- Department of Pathological Science, State University of Londrina, P.O. Box 10.011, 86.057-970 Londrina, Paraná, Brazil
| | - P. Leonello-Álvares e Silva
- Department of Pathological Science, State University of Londrina, P.O. Box 10.011, 86.057-970 Londrina, Paraná, Brazil
| | - C.R.T. Yamashita
- Deparment of Food Science and Technology, State University of Londrina, P.O. Box 10.011, 86.057-970 Londrina, Paraná, Brazil
| | - A. Lenhard-Vidal
- Department of Pathological Science, State University of Londrina, P.O. Box 10.011, 86.057-970 Londrina, Paraná, Brazil
| | - A.T. Ishikawa
- Department of Pathological Science, State University of Londrina, P.O. Box 10.011, 86.057-970 Londrina, Paraná, Brazil
| | - O. Kawamura
- Department of Applied Biological Science, Faculty of Agriculture, Kagawa University, 2393 Ikenobe, Miki, Kagawa, 761-0795 Japan
| | - E.Y. Hirooka
- Deparment of Food Science and Technology, State University of Londrina, P.O. Box 10.011, 86.057-970 Londrina, Paraná, Brazil
| | - E.N. Itano
- Department of Pathological Science, State University of Londrina, P.O. Box 10.011, 86.057-970 Londrina, Paraná, Brazil
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Determination of type A trichothecenes in coix seed by magnetic solid-phase extraction based on magnetic multi-walled carbon nanotubes coupled with ultra-high performance liquid chromatography-tandem mass spectrometry. Anal Bioanal Chem 2016; 408:6823-31. [PMID: 27475443 DOI: 10.1007/s00216-016-9809-0] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2016] [Revised: 07/12/2016] [Accepted: 07/18/2016] [Indexed: 10/21/2022]
Abstract
Magnetic solid-phase extraction (m-SPE) is a promising sample preparation approach due to its convenience, speed, and simplicity. For the first time, a rapid and reliable m-SPE approach using magnetic multi-walled carbon nanotubes (m-MWCNTs) as the adsorbent was proposed for purification of type A trichothecenes including T-2 toxins (T2), HT-2 toxins (HT-2), diacetoxyscirpenol (DAS), and neosolaniol (NEO) in coix seed. The m-MWCNTs were synthesized by assembling the magnetic nanoparticles (Fe3O4) with MWCNTs by sonication through an aggregation wrap mechanism, and characterized by transmission electron microscope. Several key parameters affecting the performance of the procedure were extensively investigated including extraction solutions, desorption solvents, and m-MWCNT amounts. Under the optimal sample preparation conditions followed by analysis with ultra-high performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS), high sensitivity (limit of quantification in the range of 0.3-1.5 μg kg(-1)), good linearity (R (2) > 0.99), satisfactory recovery (73.6-90.6 %), and acceptable precision (≤2.5 %) were obtained. The analytical performance of the developed method has also been successfully evaluated in real coix seed samples. Graphical Abstract Flow chart of determination of type A trichothecenes in coix seed by magnetic solid-phase extraction coupled with ultra-high performance liquid chromatography-tandem mass spectrometry.
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