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Addante-Moya LG, Abad-Fuentes A, Agulló C, Abad-Somovilla A, Mercader JV. Sensitive and selective alternariol analysis by a newly developed monoclonal antibody-based immunoassay. Talanta 2024; 267:125263. [PMID: 37816292 DOI: 10.1016/j.talanta.2023.125263] [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: 07/31/2023] [Revised: 09/20/2023] [Accepted: 09/30/2023] [Indexed: 10/12/2023]
Abstract
Alternariol is a toxic secondary metabolite produced by Alternaria fungi. Nowadays, this mycotoxin can be found in many products of plant origin at concerning concentrations. The aim of the present study was to develop a highly sensitive and selective immunochemical method for the analysis of alternariol. To this end, hapten synthesis was carried out from the scratch and specific high-affinity monoclonal antibodies to alternariol were generated by using, for the first time, alternariol bioconjugates with unambiguous linker tethering sites. A novel indirect enzyme-linked immunosorbent assay that incorporated a rationally designed heterologous conjugate was developed. The optimized assay showed an outstanding half-maximal inhibition concentration for alternariol below 0.04 ng/mL, and no cross-reactivity with alternariol monomethyl ether was observed. Very good recovery values and coefficients of variation were obtained from the analysis of alternariol-fortified fruit and cereal flour samples. Finally, alternariol was quantitatively determined in pears that had been previously infected with Alternaria alternata, showing excellent correlation with liquid chromatography results.
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Affiliation(s)
- Luis G Addante-Moya
- Department of Organic Chemistry, University of Valencia, Dr. Moliner 50, Burjassot, 46100, Valencia, Spain
| | - Antonio Abad-Fuentes
- Institute of Agrochemistry and Food Technology, Spanish Council for Scientific Research (IATA-CSIC), Av. Agustí Escardino 7, Paterna, 46980, Valencia, Spain
| | - Consuelo Agulló
- Department of Organic Chemistry, University of Valencia, Dr. Moliner 50, Burjassot, 46100, Valencia, Spain
| | - Antonio Abad-Somovilla
- Department of Organic Chemistry, University of Valencia, Dr. Moliner 50, Burjassot, 46100, Valencia, Spain
| | - Josep V Mercader
- Institute of Agrochemistry and Food Technology, Spanish Council for Scientific Research (IATA-CSIC), Av. Agustí Escardino 7, Paterna, 46980, Valencia, Spain.
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Addante-Moya LG, Abad-Somovilla A, Abad-Fuentes A, Agulló C, Mercader JV. Assessment of the Optimum Linker Tethering Site of Alternariol Haptens for Antibody Generation and Immunoassay Development. Toxins (Basel) 2021; 13:toxins13120883. [PMID: 34941720 PMCID: PMC8705777 DOI: 10.3390/toxins13120883] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 11/26/2021] [Accepted: 12/06/2021] [Indexed: 01/19/2023] Open
Abstract
Immunochemical methods for mycotoxin analysis require antigens with well-defined structures and antibodies with outstanding binding properties. Immunoreagents for the mycotoxins alternariol and/or alternariol monomethyl ether have typically been obtained with chemically uncharacterized haptens, and antigen conjugates have most likely been prepared with mixtures of functionalized molecules. For the first time, total synthesis was performed, in the present study, to obtain two haptens with opposite linker attachment locations. The functionalized synthetic haptens were purified and deeply characterized by different spectrometric methods, allowing the preparation of bioconjugates with unequivocal structures. Direct and indirect competitive enzyme-linked immunosorbent assays, using homologous and heterologous conjugates, were employed to extensively evaluate the generated immunoreagents. Antibodies with high affinity were raised from conjugates of both haptens, and a structure-activity relationship between the synthetic haptens and the specificity of the generated antibodies could be established. These results pave the way for the development of novel highly sensitive immunoassays selective of one or two of these Alternaria mycotoxins.
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Affiliation(s)
- Luis G. Addante-Moya
- Department of Organic Chemistry, University of Valencia, Doctor Moliner 50, 46100 Burjassot, Valencia, Spain; (L.G.A.-M.); (A.A.-S.); (C.A.)
| | - Antonio Abad-Somovilla
- Department of Organic Chemistry, University of Valencia, Doctor Moliner 50, 46100 Burjassot, Valencia, Spain; (L.G.A.-M.); (A.A.-S.); (C.A.)
| | - Antonio Abad-Fuentes
- Spanish Council for Scientific Research, Institute of Agrochemistry and Food Technology, Agustí Escardino 7, 46980 Paterna, Valencia, Spain;
| | - Consuelo Agulló
- Department of Organic Chemistry, University of Valencia, Doctor Moliner 50, 46100 Burjassot, Valencia, Spain; (L.G.A.-M.); (A.A.-S.); (C.A.)
| | - Josep V. Mercader
- Spanish Council for Scientific Research, Institute of Agrochemistry and Food Technology, Agustí Escardino 7, 46980 Paterna, Valencia, Spain;
- Correspondence:
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Jin G, Wu X, Cui G, Liu L, Kuang H, Xu C. Development of an ic-ELISA and Immunochromatographic Strip Assay for the Detection of Diacetoxyscirpenol in Rice. ACS OMEGA 2020; 5:17876-17882. [PMID: 32743158 PMCID: PMC7391247 DOI: 10.1021/acsomega.9b02496] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Accepted: 10/28/2019] [Indexed: 06/01/2023]
Abstract
Diacetoxyscirpenol (DAS) is a highly toxic type A trichothecene, a natural contaminant in food and animal feed, which is a serious hazard to human and animal health. An anti-DAS mAb, 3H10, with high sensitivity and specificity, was prepared, and an indirect competitive enzyme-linked immunosorbent assay (ic-ELISA) and a lateral-flow immunochromatographic strip (ICA strip) were developed for rapid testing of DAS in rice samples. The 50% inhibitory concentration and limit of detection of ic-ELISA were 5.97 and 0.78 ng/mL, respectively. The recovery of rice samples ranged from 99.4 to 110.7%, demonstrating that the analytical method can be used to detect rice samples. The cutoff value of the lateral-flow ICA strip to DAS was 500 ng/g. The developed immunoassay method can provide an effective method of initially detecting and screening DAS in food and feed samples.
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Affiliation(s)
- Guohao Jin
- State
Key Lab of Food Science and Technology, School of Food Science and
Technology, Jiangnan University, Wuxi, Jiangsu 214122, People’s Republic
of China
| | - Xiaoling Wu
- State
Key Lab of Food Science and Technology, School of Food Science and
Technology, Jiangnan University, Wuxi, Jiangsu 214122, People’s Republic
of China
| | - Gang Cui
- YanCheng
Teachers University, Yancheng 224100, People’s Republic
of China
| | - Liqiang Liu
- State
Key Lab of Food Science and Technology, School of Food Science and
Technology, Jiangnan University, Wuxi, Jiangsu 214122, People’s Republic
of China
| | - Hua Kuang
- State
Key Lab of Food Science and Technology, School of Food Science and
Technology, Jiangnan University, Wuxi, Jiangsu 214122, People’s Republic
of China
| | - Chuanlai Xu
- State
Key Lab of Food Science and Technology, School of Food Science and
Technology, Jiangnan University, Wuxi, Jiangsu 214122, People’s Republic
of China
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Zhou S, Xu L, Liu L, Kuang H, Xu C. Development of a monoclonal antibody-based immunochromatographic assay for the detection of carbamazepine and carbamazepine-10, 11-epoxide. J Chromatogr B Analyt Technol Biomed Life Sci 2020; 1141:122036. [DOI: 10.1016/j.jchromb.2020.122036] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2019] [Revised: 02/12/2020] [Accepted: 02/14/2020] [Indexed: 12/31/2022]
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Yao CY, Xu ZL, Wang H, Zhu F, Luo L, Yang JY, Sun YM, Lei HT, Tian YX, Shen YD. High affinity antibody based on a rationally designed hapten and development of a chemiluminescence enzyme immunoassay for quantification of Alternariol in fruit Juice, maize and flour. Food Chem 2019; 283:359-366. [DOI: 10.1016/j.foodchem.2018.12.127] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Revised: 12/29/2018] [Accepted: 12/29/2018] [Indexed: 12/22/2022]
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A novel hapten and monoclonal antibody-based indirect competitive ELISA for simultaneous analysis of alternariol and alternariol monomethyl ether in wheat. Food Control 2018. [DOI: 10.1016/j.foodcont.2018.06.027] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Using of Tyramine Signal Amplification to Improve the Sensitivity of ELISA for Aflatoxin B1 in Edible Oil Samples. FOOD ANAL METHOD 2018. [DOI: 10.1007/s12161-018-1235-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Berthiller F, Cramer B, 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 2016-2017. WORLD MYCOTOXIN J 2018. [DOI: 10.3920/wmj2017.2250] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
This review summarises developments in the determination of mycotoxins over a period between mid-2016 and mid-2017. 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 LC-MS 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 the presented methodologies.
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Affiliation(s)
- F. Berthiller
- Department of Agrobiotechnology (IFA-Tulln), Christian Doppler Laboratory for Mycotoxin Metabolism and Center for Analytical Chemistry, University of Natural Resources and Life Sciences, Konrad Lorenz Str. 20, 3430 Tulln, Austria
| | - B. Cramer
- Institute of Food Chemistry, University of Münster, Corrensstr. 45, 48149 Münster, Germany
| | - M.H. Iha
- Nucleous of Chemistry and Bromatology Science, Adolfo Lutz Institute of Ribeirão Preto, Rua Minas 866, CEP 14085-410, Ribeirão Preto, SP, Brazil
| | - R. Krska
- Department of Agrobiotechnology (IFA-Tulln), Christian Doppler Laboratory for Mycotoxin Metabolism and Center for Analytical Chemistry, University of Natural Resources and Life Sciences, Konrad Lorenz Str. 20, 3430 Tulln, Austria
| | - V.M.T. Lattanzio
- National Research Council of Italy, Institute of Sciences of Food Production, via amendola 122/O, 70126 Bari, Italy
| | - S. MacDonald
- Department of Contaminants and Authenticity, 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
- Mycotoxin Prevention and Applied Microbiology Research Unit, USDA, ARS National Center for Agricultural Utilization Research, 1815 N. University St., Peoria, IL 61604, USA
| | - M. Solfrizzo
- National Research Council of Italy, Institute of Sciences of Food Production, via amendola 122/O, 70126 Bari, Italy
| | - M. Stranska-Zachariasova
- Department of Food Analysis and Nutrition, Faculty of Food and Biochemical Technology, University of Chemistry and Technology, Technická 5, 166 28 Prague 6 – Dejvice, Czech Republic
| | - J. Stroka
- European Commission, Joint Research Centre, Retieseweg 111, 2440 Geel, Belgium
| | - S.A. Tittlemier
- Canadian Grain Commission, Grain Research Laboratory, 1404-303 Main Street, Winnipeg, MB R3C 3G8, Canada
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