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Zhao Y, Deng J, Chen Q, Jiang H. Near-infrared spectroscopy based on colorimetric sensor array coupled with convolutional neural network detecting zearalenone in wheat. Food Chem X 2024; 22:101322. [PMID: 38562183 PMCID: PMC10982547 DOI: 10.1016/j.fochx.2024.101322] [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: 03/01/2024] [Revised: 03/15/2024] [Accepted: 03/18/2024] [Indexed: 04/04/2024] Open
Abstract
Wheat is a vital global cereal crop, but its susceptibility to contamination by mycotoxins can render it unusable. This study explored the integration of two novel non-destructive detection methodologies with convolutional neural network (CNN) for the identification of zearalenone (ZEN) contamination in wheat. Firstly, the colorimetric sensor array composed of six selected porphyrin-based materials was used to capture the olfactory signatures of wheat samples. Subsequently, the colorimetric sensor array, after undergoing a reaction, was characterized by its near-infrared spectral features. Then, the CNN quantitative analysis model was proposed based on the data, alongside the establishment of traditional machine learning models, partial least squares regression (PLSR) and support vector machine regression (SVR), for comparative purposes. The outcomes demonstrated that the CNN model had superior predictive performance, with a root mean square error of prediction (RMSEP) of 40.92 μ g ∙ kg-1 and a coefficient of determination on the prediction (R P 2 ) of 0.91. These results affirmed the potential of integrating colorimetric sensor array with near-infrared spectroscopy in evaluating the safety of wheat and potentially other grains. Moreover, CNN can have the capacity to autonomously learn and distill features from spectral data, enabling further spectral analysis and making it a forward-looking spectroscopic tool.
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Affiliation(s)
- Yongqin Zhao
- School of Electrical and Information Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Jihong Deng
- School of Electrical and Information Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Quansheng Chen
- College of Ocean Food and Biological Engineering, Jimei University, Xiamen 361021, China
| | - Hui Jiang
- School of Electrical and Information Engineering, Jiangsu University, Zhenjiang 212013, China
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2
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Xu L, Li W, Hong Y, Cai X, Chen X, Liang H, Xu X, Wang Y, Li C, Sun D. Polycarboxyl ionic liquid functionalized Yb-MOFs nanoballs based dual-wavelength responsive photoelectrochemical aptasensor for the simultaneous determination of AFB1 and OTA. Anal Chim Acta 2024; 1298:342383. [PMID: 38462344 DOI: 10.1016/j.aca.2024.342383] [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: 12/01/2023] [Revised: 02/13/2024] [Accepted: 02/16/2024] [Indexed: 03/12/2024]
Abstract
Developing an accurate and precise approach for the simultaneous detection of ochratoxin A (OTA) and aflatoxin B1 (AFB1) is significant for food safety surveillance. Herein, a photoelectrochemical sensing platform was constructed based on polycarboxylic ionic liquid functionalized metal-organic framework integrated with gold nanoparticles (Yb-MOFs@AuNPs). Sulfhydryl functionalized hairpin DNA (hDNA) was immobilized on a Yb-MOFs@AuNPs modified glassy carbon electrode (GCE) surface through Au-S bond. After blocking residual active binding sites with BSA, gold nanoparticles-labeled AFB1 aptamer (AuNPs-Apt 1) and gold nanorods-labeled OTA aptamer (AuNRs-Apt 2) were introduced to construct a photoelectrochemical aptasensor for the simultaneous determination of AFB1 and OTA. Due to the surface plasmon resonance effect and the nanometer size effect of gold nanomaterials, the photoelectrochemical aptasensor can output photocurrent responses as being excited with different wavelengths at 520 nm and 808 nm, respectively. When the AFB1 and OTA concentration in the range of 0.001-50.0 ng mL-1, a good linear relationship between the photocurrent difference (ΔI) before and after recognizing targets and the logarithm of AFB1 or OTA concentration was obtained. The detection limits for AFB1 and OTA were 0.40 pg mL-1 and 0.19 pg mL-1, respectively. AFB1 and OTA in corn samples were detected simultaneously by the photoelectrochemical aptasensor.
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Affiliation(s)
- Lian Xu
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325035, China
| | - Wei Li
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325035, China
| | - Yawen Hong
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325035, China
| | - Xiaojun Cai
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325035, China
| | - Xiaoyang Chen
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science & Key Laboratory of Analytical Chemistry of the State Ethnic Affairs Commission, South-Central Minzu University, Wuhan, 430074, China
| | - Haiping Liang
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science & Key Laboratory of Analytical Chemistry of the State Ethnic Affairs Commission, South-Central Minzu University, Wuhan, 430074, China
| | - XingXing Xu
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science & Key Laboratory of Analytical Chemistry of the State Ethnic Affairs Commission, South-Central Minzu University, Wuhan, 430074, China
| | - Yanying Wang
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science & Key Laboratory of Analytical Chemistry of the State Ethnic Affairs Commission, South-Central Minzu University, Wuhan, 430074, China
| | - Chunya Li
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science & Key Laboratory of Analytical Chemistry of the State Ethnic Affairs Commission, South-Central Minzu University, Wuhan, 430074, China; Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, Hubei Normal University, Huangshi, 435002, China.
| | - Dong Sun
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325035, China.
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Zhang C, Wang Q, Zhong C, Yang Y, Liang X, Chen P, Zhou L. A simple photoelectrochemical aptasensor based on MoS 2/rGO for aflatoxin B1 detection in grain crops. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024; 16:1330-1340. [PMID: 38328893 DOI: 10.1039/d3ay01455j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/09/2024]
Abstract
Designing a simple and sensitive photoelectrochemical (PEC) sensor is crucial to addressing the limitations of routine analytical methods. The sensitivity of the PEC sensor, however, relies on the photoelectric material used. In this manuscript, composites of MoS2/rGO (MG) with a large area and layered structure are prepared by simple steps. This material exhibits sensitivity to visible light and demonstrates outstanding photoelectric conversion performance. The constructed PEC aptasensor using this material to detect aflatoxin B1 (AFB1) shows significantly higher sensitivity and stability compared to similar sensors. This may be attributed to the presence of surface defects in MoS2, which provide more active sites for photocatalysis. Additionally, graphene oxide (GO) is reduced to rGO by thiourea and forms a heterojunction with MoS2, enhancing charge carrier separation and interfacial electron transfer. Our research has revealed that the photocurrent intensity of the aptamer electrode decreases with an increase in AFB1 concentration, resulting in a "signal-off" PEC aptasensor. The detection limit of this aptasensor is 2.18 pg mL-1, with a linear range of 0.001 to 100 ng mL-1. This result will also provide a reference for the study of other mycotoxins in food.
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Affiliation(s)
- Cuizhong Zhang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China.
- Photochemical Sensing and Regional Environmental Analysis Laboratory, School of Chemistry and Bioengineering, Guangxi Normal University for Nationalities, Chongzuo 532200, China
- Guangxi Key Laboratory for High-Value Utilization of Manganese Resources, Chongzuo 532200, China
- Chongzuo Key Laboratory of Comprehensive Utilization Technology of Manganese Resources, Chongzuo 532200, China
| | - Qiang Wang
- Guangxi Key Laboratory for High-Value Utilization of Manganese Resources, Chongzuo 532200, China
- Chongzuo Key Laboratory of Comprehensive Utilization Technology of Manganese Resources, Chongzuo 532200, China
| | - Chuanze Zhong
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China.
| | - Ye Yang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China.
| | - Xuexue Liang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China.
| | - Peican Chen
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China.
| | - Liya Zhou
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China.
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4
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Thati R, Seetha BS, Alegete P, Mudiam MKR. Molecularly imprinted dispersive micro solid-phase extraction coupled with high-performance liquid chromatography for the determination of four aflatoxins in various foods. Food Chem 2024; 433:137342. [PMID: 37683485 DOI: 10.1016/j.foodchem.2023.137342] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Revised: 07/29/2023] [Accepted: 08/28/2023] [Indexed: 09/10/2023]
Abstract
A new dummy template-based molecularly imprinted dispersive micro solid-phase extraction (MI-d-µSPE) coupled with HPLC-FLD developed for the simultaneous determination of four aflatoxins (B1, B2, G1, G2) in various food matrices. The synthesized MIP was used as a dispersive solid-phase extraction (dSPE) sorbent for aflatoxins extraction. The chemometric approach was used to identify the optimum conditions of dSPE. The results showed the amount of MIP sorbent (55 mg), adsorption time (12.5 min), and %ACN (75%) were significant extraction parameters. The method has a detection limit in the range of 0.059-0.208 µg kg-1 and a quantification limit in the range of 0.197-0.694 µg kg-1 for aflatoxins. The intra- and inter-day precision was less than 5%, and recoveries were 79.1-109.4%. The expanded uncertainty of the developed method was found to be 2.9-22.8%. The new MI-d-µSPE with HPLC-FLD method was applied for 37 food matrices.
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Affiliation(s)
- Ramya Thati
- Analytical and Structural Chemistry Department, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad 500007, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Bala Subrahanyam Seetha
- Analytical and Structural Chemistry Department, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad 500007, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Pallavi Alegete
- Analytical and Structural Chemistry Department, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad 500007, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Mohana Krishna Reddy Mudiam
- Analytical Division, Institute of Pesticide Formulation Technology (IPFT), Sector-20, Udyog Vihar, Gurugram-122016, Haryana, India.
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5
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Galluzzo FG, Cammilleri G, Pulvirenti A, Mannino E, Pantano L, Calabrese V, Buscemi MD, Messina EMD, Alfano C, Macaluso A, Ferrantelli V. Determination of Mycotoxins in Plant-Based Meat Alternatives (PBMAs) and Ingredients after Microwave Cooking. Foods 2024; 13:339. [PMID: 38275706 PMCID: PMC10815609 DOI: 10.3390/foods13020339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 01/10/2024] [Accepted: 01/20/2024] [Indexed: 01/27/2024] Open
Abstract
In this study, we investigate the role of microwave cooking in reducing mycotoxin contamination in plant-based food matrices, with a focus on veggie burgers (purchased and home-made) and their ingredients (soybean, potatoes, zucchini, carrots). Two different conditions were studied (Max-Min) that were 800 W for 60 s and 800 W for 90 s, respectively. The degradation patterns of aflatoxins (AFB1, AFB2, AFG1, AFG2), fumonisins (FB1, FB2, FB3), trichothecenes (T2, HT2, ZEA), and ochratoxin A (OTA) were studied. The extraction procedures were conducted with the QuEChERS extraction, and the analyses were conducted with liquid chromatography-tandem mass spectrometry (LC-MS/MS). Principal component analysis (PCA) showed that degradation under microwave cooking varies considerably across different food matrices and cooking conditions. This study provides valuable insights into the degradation of mycotoxins during microwave cooking and underscores the need for more research in this area to ensure food safety.
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Affiliation(s)
- Francesco Giuseppe Galluzzo
- Istituto Zooprofilattico Sperimentale della Sicilia “A. Mirri”, 90129 Palermo, Italy; (G.C.); (E.M.); (M.D.B.); (E.M.D.M.); (C.A.); (A.M.); (V.F.)
- Dipartimento Scienze della Vita, Università Degli Studi di Modena e Reggio Emilia, 41125 Modena, Italy;
| | - Gaetano Cammilleri
- Istituto Zooprofilattico Sperimentale della Sicilia “A. Mirri”, 90129 Palermo, Italy; (G.C.); (E.M.); (M.D.B.); (E.M.D.M.); (C.A.); (A.M.); (V.F.)
| | - Andrea Pulvirenti
- Dipartimento Scienze della Vita, Università Degli Studi di Modena e Reggio Emilia, 41125 Modena, Italy;
| | - Erika Mannino
- Istituto Zooprofilattico Sperimentale della Sicilia “A. Mirri”, 90129 Palermo, Italy; (G.C.); (E.M.); (M.D.B.); (E.M.D.M.); (C.A.); (A.M.); (V.F.)
| | - Licia Pantano
- Istituto Zooprofilattico Sperimentale della Sicilia “A. Mirri”, 90129 Palermo, Italy; (G.C.); (E.M.); (M.D.B.); (E.M.D.M.); (C.A.); (A.M.); (V.F.)
| | - Vittorio Calabrese
- Dipartimento di Scienze Biomediche e Biotecnologiche, Università degli studi di Catania, 95123 Catania, Italy;
| | - Maria Drussilla Buscemi
- Istituto Zooprofilattico Sperimentale della Sicilia “A. Mirri”, 90129 Palermo, Italy; (G.C.); (E.M.); (M.D.B.); (E.M.D.M.); (C.A.); (A.M.); (V.F.)
| | - Elisa Maria Domenica Messina
- Istituto Zooprofilattico Sperimentale della Sicilia “A. Mirri”, 90129 Palermo, Italy; (G.C.); (E.M.); (M.D.B.); (E.M.D.M.); (C.A.); (A.M.); (V.F.)
| | - Calogero Alfano
- Istituto Zooprofilattico Sperimentale della Sicilia “A. Mirri”, 90129 Palermo, Italy; (G.C.); (E.M.); (M.D.B.); (E.M.D.M.); (C.A.); (A.M.); (V.F.)
| | - Andrea Macaluso
- Istituto Zooprofilattico Sperimentale della Sicilia “A. Mirri”, 90129 Palermo, Italy; (G.C.); (E.M.); (M.D.B.); (E.M.D.M.); (C.A.); (A.M.); (V.F.)
| | - Vincenzo Ferrantelli
- Istituto Zooprofilattico Sperimentale della Sicilia “A. Mirri”, 90129 Palermo, Italy; (G.C.); (E.M.); (M.D.B.); (E.M.D.M.); (C.A.); (A.M.); (V.F.)
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6
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Jahangiri-Dehaghani F, Zare HR, Shekari Z. Simultaneous measurement of ochratoxin A and aflatoxin B1 using a duplexed-electrochemical aptasensor based on carbon nanodots decorated with gold nanoparticles and two redox probes hemin@HKUST-1 and ferrocene@HKUST-1. Talanta 2024; 266:124947. [PMID: 37459787 DOI: 10.1016/j.talanta.2023.124947] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 07/09/2023] [Accepted: 07/12/2023] [Indexed: 09/20/2023]
Abstract
An electrochemical aptasensor was developed for the simultaneous determination of ochratoxin A (OTA) and aflatoxin B1 (AFB1). Two compounds hemin@HKUST-1 and ferrocene@HKUST-1 were synthesized by encapsulating hemin and ferrocene inside the MOF made by copper nodes and trimesic acid, known as HKUST-1 MOF, and then bind to complementary DNA sequences of OTA aptamer (cDNA1) and AFB1 aptamer (cDNA2), respectively. Then, the hemin@HKUST-1/cDNA1 and ferrocene@HKUST-1/cDNA2 bioconjugates were deposited on the glassy carbon electrode (GCE) modified with carbon nanodots decorated with gold nanoparticles (AuNPs-CNDs). In the absence of the two mycotoxins, the current response related to the electroactive labels of hemin and ferrocene in the discussed bioconjugates have been measured at two separate potentials simultaneously by the differential pulse voltammetry technique (DPV). Using the described aptasensor, it is possible to measure both OTA and AFB1 mycotoxins in the linear concentration range of 1.0 × 10-2 to 100.0 ng mL-1. Also, the detection limits of OTA and AFB1 were 4.3 × 10-3 ng mL-1 and 5.2 × 10-3 ng mL-1, respectively. Finally, the ability of the proposed duplex aptasensor for the simultaneous measurement of OTA and AFB1 in a corn flour sample was investigated and completely satisfactory results were achieved.
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Affiliation(s)
| | - Hamid R Zare
- Department of Chemistry, Yazd University, Yazd, 89195-741, Iran.
| | - Zahra Shekari
- Department of Chemistry, Yazd University, Yazd, 89195-741, Iran
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7
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Dib AA, Assaf JC, Debs E, Khatib SE, Louka N, Khoury AE. A comparative review on methods of detection and quantification of mycotoxins in solid food and feed: a focus on cereals and nuts. Mycotoxin Res 2023; 39:319-345. [PMID: 37523055 DOI: 10.1007/s12550-023-00501-6] [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: 04/14/2023] [Revised: 07/13/2023] [Accepted: 07/14/2023] [Indexed: 08/01/2023]
Abstract
Many emerging factors and circumstances urge the need to develop and optimize the detection and quantification techniques of mycotoxins in solid food and feed. The diversity of mycotoxins, which have different properties and affinities, makes the standardization of the analytical procedures and the adoption of a single protocol that covers the attributes of all mycotoxins a tedious or even an impossible mission. Several modifications and improvements have been undergone in order to optimize the performance of these methods including the extraction solvents, the extraction methods, the clean-up procedures, and the analytical techniques. The techniques range from the rapid screening methods, which lack sensitivity and specificity such as TLC, to a spectrum of more advanced protocols, namely, ELISA, HPLC, and GC-MS and LC-MS/MS. This review aims at assessing the current studies related to these analytical techniques of mycotoxins in solid food and feed. It discusses and evaluates, through a critical approach, various sample treatment techniques, and provides an in-depth examination of different mycotoxin detection methods. Furthermore, it includes a comparison of their actual accuracy and a thorough analysis of the observed benefits and drawbacks.
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Affiliation(s)
- Alaa Abou Dib
- Centre d'Analyses Et de Recherche (CAR), Faculté Des Sciences, Unité de Recherche Technologies Et Valorisation Agro-Alimentaire (UR-TVA), Université Saint-Joseph de Beyrouth, Campus Des Sciences Et TechnologiesMar Roukos, Matn, 1104-2020, Lebanon
- Department of Food Sciences and Technology, Faculty of Arts and Sciences, Bekaa Campus, Lebanese International University, Khiyara, 1108, Bekaa, Lebanon
| | - Jean Claude Assaf
- Department of Chemical Engineering, Faculty of Engineering, University of Balamand, P.O. Box 100, Tripoli, Lebanon
| | - Espérance Debs
- Department of Biology, Faculty of Arts and Sciences, University of Balamand, P.O. Box 100, Tripoli, 1300, Lebanon
| | - Sami El Khatib
- Department of Food Sciences and Technology, Faculty of Arts and Sciences, Bekaa Campus, Lebanese International University, Khiyara, 1108, Bekaa, Lebanon
- Center for Applied Mathematics and Bioinformatics, Gulf University for Science and Technology, Hawally, Kuwait
| | - Nicolas Louka
- Centre d'Analyses Et de Recherche (CAR), Faculté Des Sciences, Unité de Recherche Technologies Et Valorisation Agro-Alimentaire (UR-TVA), Université Saint-Joseph de Beyrouth, Campus Des Sciences Et TechnologiesMar Roukos, Matn, 1104-2020, Lebanon
| | - André El Khoury
- Centre d'Analyses Et de Recherche (CAR), Faculté Des Sciences, Unité de Recherche Technologies Et Valorisation Agro-Alimentaire (UR-TVA), Université Saint-Joseph de Beyrouth, Campus Des Sciences Et TechnologiesMar Roukos, Matn, 1104-2020, Lebanon.
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8
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Feng S, Hua MZ, Roopesh MS, Lu X. Rapid detection of three mycotoxins in animal feed materials using competitive ELISA-based origami microfluidic paper analytical device (μPAD). Anal Bioanal Chem 2023; 415:1943-1951. [PMID: 36847793 DOI: 10.1007/s00216-023-04612-y] [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: 01/08/2023] [Revised: 02/13/2023] [Accepted: 02/17/2023] [Indexed: 03/01/2023]
Abstract
We report the development of a competitive ELISA-based origami microfluidic paper-based analytical device (μPAD) for the detection of mycotoxins in animal feed material. The μPAD was patterned using the wax printing technique with the design of a testing pad in the middle and two absorption pads at the side. Anti-mycotoxin antibodies were effectively immobilized on chitosan-glutaraldehyde-modified sample reservoirs in the μPAD. The determination of zearalenone, deoxynivalenol, and T-2 toxin in corn flour was successfully achieved by performing competitive ELISA on the μPAD in 20 min. Colorimetric results were easily distinguished by the naked eye with a detection limit of 1 µg/mL for all three mycotoxins. The μPAD integrated with competitive ELISA holds potential for practical applications in the livestock industry for rapid, sensitive, and cost-effective detection of different mycotoxins in animal feed materials.
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Affiliation(s)
- Shaolong Feng
- Food, Nutrition and Health Program, Faculty of Land and Food Systems, The University of British Columbia, Vancouver, BC, V6T 1Z4, Canada
| | - Marti Z Hua
- Food, Nutrition and Health Program, Faculty of Land and Food Systems, The University of British Columbia, Vancouver, BC, V6T 1Z4, Canada
- Department of Food Science and Agricultural Chemistry, McGill University Macdonald Campus, 21111 Lakeshore Road, Sainte-Anne-de-Bellevue, QC, H9X 3V9, Canada
| | - M S Roopesh
- Department of Agricultural, Food, and Nutrition Science, University of Alberta, Edmonton, AB, T6G 2R3, Canada
| | - Xiaonan Lu
- Food, Nutrition and Health Program, Faculty of Land and Food Systems, The University of British Columbia, Vancouver, BC, V6T 1Z4, Canada.
- Department of Food Science and Agricultural Chemistry, McGill University Macdonald Campus, 21111 Lakeshore Road, Sainte-Anne-de-Bellevue, QC, H9X 3V9, Canada.
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9
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Advantages of Multiplexing Ability of the Orbitrap Mass Analyzer in the Multi-Mycotoxin Analysis. Toxins (Basel) 2023; 15:toxins15020134. [PMID: 36828448 PMCID: PMC9965799 DOI: 10.3390/toxins15020134] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 01/31/2023] [Accepted: 02/03/2023] [Indexed: 02/11/2023] Open
Abstract
In routine measurements, the length of the analysis time and nfumber of samples analysed during a time unit are crucial parameters, which are especially important for the food analysis, particularly in the case of mycotoxin determinations. High-resolution equipment, including time-of-flight or Orbitrap analyzators, can provide stable instrumental background for high-throughput analyses. In this report, a short, 1 min MS-based multi-mycotoxin method was developed with the application of a short column as a reduced chromatographic separation, taking advantages of the multiplexing and high-resolution capability of the QExactive Orbitrap MS possessing sub-1 ppm mass accuracy. The performance of the method was evaluated regarding selectivity, LOD, LOQ, linearity, matrix effect, and recovery, and compared to a UHPLC-MS/MS method. The final multiplexing method was able to quantify 11 mycotoxins in defined ranges (aflatoxins (corn, 2.8-600 μg/kg; wheat, 1.5-350 μg/kg), deoxynivalenol (corn, 640-9600 μg/kg; wheat, 128-3500 μg/kg), fumonisins (corn, 20-1500 μg/kg; wheat, 30-3500 μg/kg), HT-2 (corn, 64-5200 μg/kg; wheat, 61-3500 μg/kg), T-2 (corn, 10-800 μg/kg; wheat, 4-250 μg/kg), ochratoxin (corn, 4.7-600 μg/kg; wheat, 1-1000 μg/kg), zearalenone (corn, 64-4800 μg/kg; wheat, 4-500 μg/kg)) within one minute in corn and wheat matrices at the MRL levels stated by the European Union.
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10
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Human exposure to ochratoxin A and its natural occurrence in spices marketed in Chile (2016–2020): A case study of merkén. J Food Compost Anal 2023. [DOI: 10.1016/j.jfca.2022.104885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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11
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Development of an Immunofluorescent Capillary Sensor for the Detection of Zearalenone Mycotoxin. Toxins (Basel) 2022; 14:toxins14120866. [PMID: 36548763 PMCID: PMC9785567 DOI: 10.3390/toxins14120866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 12/02/2022] [Accepted: 12/07/2022] [Indexed: 12/14/2022] Open
Abstract
A capillary-based immunofluorescence sensor was developed and incorporated in a flow injection analysis system. The light-guiding capillary was illuminated axially by a 473 nm/5 mW solid state laser through a tailored optofluidic connector. High sensitivity of the system was achieved by efficiently collecting and detecting the non-guided fluorescence signal scattered out along the wall of the capillary. The excitation was highly suppressed with bandpass and dichroic filters by simultaneously exploiting the guiding effect inside the capillary. The glass capillary used as a measuring cell was silanized in liquid phase by 3-aminopropyltriethoxysilane (APTS), and the biomolecules were immobilized using glutaraldehyde inside the capillary. The applicability of the developed system was tested with a bovine serum albumin (BSA)-anti-BSA-IgG model-molecule pair, using a fluorescently labeled secondary antibody. Based on the results of the BSA-anti-BSA experiments, a similar setup using a primary antibody specific for zearalenone (ZON) was established, and a competitive fluorescence measurement system was developed for quantitative determination of ZON. For the measurements, 20 µg/mL ZON-BSA conjugate was immobilized in the capillary, and a 1:2500 dilution of the primary antibody stock solution and a 2 µg/mL secondary antibody solution were set. The developed capillary-based immunosensor allowed a limit of detection (LOD) of 0.003 ng/mL and a limit of quantification (LOQ) of 0.007 ng/mL for ZON in the competitive immunosensor setup, with a dynamic detection range of 0.01-10 ng/mL ZON concentrations.
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Pochivalov A, Pavlova K, Garmonov S, Bulatov A. Behaviour of deep eutectic solvent based on terpenoid and long-chain alcohol during dispersive liquid-liquid microextraction: Determination of zearalenone in cereal samples. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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13
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Palma P, Godoy M, Vidal M, Rivera A, Calderón R. Adaptation, optimization, and validation of a sensitive and robust method for the quantification of total aflatoxins (B1, B2, G1, and G2) in the spice merkén by HPLC-FLD with post-column derivatization. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107342] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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14
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Malissiova E, Soultani G, Kogia P, Koureas M, Hadjichristodoulou C. Analysis of 20 year data for the assessment of dietary exposure to chemical contaminants in the region of Thessaly, Greece. Food Control 2022. [DOI: 10.1016/j.foodcont.2022.108838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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15
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Sibanda L, McCallum K, Plotan M, Webb S, Snodgras B, Muenks Q, Porter J, Fitzgerald P. Interlaboratory collaboration to determine the performance of the Randox food diagnostics biochip array technology for the simultaneous quantitative detection of seven mycotoxins in feed. WORLD MYCOTOXIN J 2021. [DOI: 10.3920/wmj2021.2696] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
An inter-laboratory collaborative study was performed to evaluate the performance of the Biochip Array Technology (BAT) Myco 7 method. The Myco 7 Array is a method which simultaneously and quantitatively detects 20 mycotoxins including aflatoxins B1, B2, G1 and G2, ochratoxin A, deoxynivalenol, zearalenone, fumonisin B1, B2 and B3 and T-2 and HT-2 toxin. The BAT Myco 7 method was collaboratively evaluated by nine government and private Association of American Feed Control Officials (AAFCO) laboratories. Samples were analysed in a proficiency testing round format. Seventeen blind samples were analysed on the same equipment using Myco 7 kits. 99% of the results fell within an acceptable Z-score range of -2|<Z<|+2. Deoxynivalenol had a 100% Z-score pass rate, while a 99% pass was recorded for aflatoxins, zearalenone, ochratoxin A and fumonisins. T-2 toxin had a 97% Z-score pass rate. HorRat analysis for reproducibility used a range of 0.3<|HorRat|≤2. The target was met for deoxynivalenol, zearalenone, T-2 and HT-2 toxin, and aflatoxins B1, B2, G1 and G2 assays. Fumonisins and ochratoxin A assays had a 93% and 94% pass, respectively. The reproducibility co-efficiency of variation was between 16 and 20% meeting set criterion of <40% and is, therefore, fit-for-purpose for use in the AAFCO control programs for mycotoxins.
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Affiliation(s)
- L. Sibanda
- Randox Food Diagnostics Ltd., 55 Diamond Road, Crumlin, BT29 4QY, United Kingdom
| | - K. McCallum
- Colorado Department of Agriculture, Division of Laboratory Services – Biochemistry Laboratory, 300 South Technology Court, Broomfield, CO 80021, USA
| | - M. Plotan
- Randox Food Diagnostics Ltd., 55 Diamond Road, Crumlin, BT29 4QY, United Kingdom
| | - S. Webb
- University of Kentucky, Division of Regulatory Services, 103 Regulatory Services Bldg, Lexington, KY 40546, USA
| | - B. Snodgras
- American Association of Feed Control Officials (AAFCO), Proficiency Testing Program, 1800 S. Oak Street, Suite 100, Champaign, IL 61820, USA
| | - Q. Muenks
- Missouri Department of Agriculture, Bureau of Feed and Seed, 115 Constitution Drive, Jefferson City, MI 65109, USA
| | - J. Porter
- Randox Food Diagnostics Ltd., 55 Diamond Road, Crumlin, BT29 4QY, United Kingdom
| | - P. Fitzgerald
- Randox Food Diagnostics Ltd., 55 Diamond Road, Crumlin, BT29 4QY, United Kingdom
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Jiang G, Ibrahim MS, Ibrahim MK, Zhao C, Butt M, Ameer K, Ahmad A, Mumtaz A, Anjum Murtaza M, Ahmed Khalil A, Asad MJ, Khan MA. Profiling and characterization of oat cultivars (Avena sativa L.) with respect to bioactive compounds, pesticide residues and mycotoxin. INTERNATIONAL JOURNAL OF FOOD PROPERTIES 2021. [DOI: 10.1080/10942912.2021.1954658] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Guihun Jiang
- School of Public Health, Jilin Medical University, Jilin, 132013, China
| | - Muhammad Suhail Ibrahim
- Institute of Food and Nutritional Sciences. PMAS-Arid Agriculture University Rawalpindi, Shamsabad, Murree Road Rawalpindi 46000, Pakistan
| | | | - Chen Zhao
- School of Public Health, Jilin Medical University, Jilin, 132013, China
| | - Madiha Butt
- College of Agriculture, Bahauddin Zakariya University Bahadur Sub Campus, Layyah 31200, Pakistan
| | - Kashif Ameer
- Institute of Food Science and Nutrition, University of Sargodha, Sargodha 40100, Pakistan
| | - Asif Ahmad
- Institute of Food and Nutritional Sciences. PMAS-Arid Agriculture University Rawalpindi, Shamsabad, Murree Road Rawalpindi 46000, Pakistan
| | - Amer Mumtaz
- Food Science & Product Development Institute, National Agricultural Research Centre, Islamabad 44000, Pakistan
| | - Mian Anjum Murtaza
- Institute of Food Science and Nutrition, University of Sargodha, Sargodha 40100, Pakistan
| | - Anees Ahmed Khalil
- University Institute of Diet and Nutritional Sciences, Faculty of Allied Health Sciences, The University of Lahore, Lahore 54000, Pakistan
| | - Muhammad Javaid Asad
- University Institute of Biochemistry and Biotechnology, PMAS-Arid Agriculture University Rawalpindi, Shamsabad, Murree Road Rawalpindi 46000, Pakistan
- National Institute of Industrial Biotechnology, PMAS-Arid Agriculture University Rawalpindi, Shamsabad, Murree Road Rawalpindi 46000, Pakistan
| | - Muhammad Azam Khan
- Department of Horticulture, PMAS-Arid Agriculture University Rawalpindi, Shamsabad, Murree Road Rawalpindi 46000, Pakistan
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Janik E, Niemcewicz M, Podogrocki M, Ceremuga M, Gorniak L, Stela M, Bijak M. The Existing Methods and Novel Approaches in Mycotoxins' Detection. Molecules 2021; 26:3981. [PMID: 34210086 PMCID: PMC8271920 DOI: 10.3390/molecules26133981] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2021] [Revised: 06/23/2021] [Accepted: 06/28/2021] [Indexed: 11/24/2022] Open
Abstract
Mycotoxins represent a wide range of secondary, naturally occurring and practically unavoidable fungal metabolites. They contaminate various agricultural commodities like cereals, maize, peanuts, fruits, and feed at any stage in pre- or post-harvest conditions. Consumption of mycotoxin-contaminated food and feed can cause acute or chronic toxicity in human and animals. The risk that is posed to public health have prompted the need to develop methods of analysis and detection of mycotoxins in food products. Mycotoxins wide range of structural diversity, high chemical stability, and low concentrations in tested samples require robust, effective, and comprehensible detection methods. This review summarizes current methods, such as chromatographic and immunochemical techniques, as well as novel, alternative approaches like biosensors, electronic noses, or molecularly imprinted polymers that have been successfully applied in detection and identification of various mycotoxins in food commodities. In order to highlight the significance of sampling and sample treatment in the analytical process, these steps have been comprehensively described.
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Affiliation(s)
- Edyta Janik
- Biohazard Prevention Centre, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland; (E.J.); (M.N.); (M.P.); (L.G.)
| | - Marcin Niemcewicz
- Biohazard Prevention Centre, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland; (E.J.); (M.N.); (M.P.); (L.G.)
| | - Marcin Podogrocki
- Biohazard Prevention Centre, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland; (E.J.); (M.N.); (M.P.); (L.G.)
| | - Michal Ceremuga
- Military Institute of Armament Technology, Prymasa Stefana Wyszyńskiego 7, 05-220 Zielonka, Poland;
| | - Leslaw Gorniak
- Biohazard Prevention Centre, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland; (E.J.); (M.N.); (M.P.); (L.G.)
| | - Maksymilian Stela
- CBRN Reconnaissance and Decontamination Department, Military Institute of Chemistry and Radiometry, Antoniego Chrusciela “Montera” 105, 00-910 Warsaw, Poland;
| | - Michal Bijak
- Biohazard Prevention Centre, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland; (E.J.); (M.N.); (M.P.); (L.G.)
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18
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Pantano L, La Scala L, Olibrio F, Galluzzo FG, Bongiorno C, Buscemi MD, Macaluso A, Vella A. QuEChERS LC-MS/MS Screening Method for Mycotoxin Detection in Cereal Products and Spices. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:3774. [PMID: 33916634 PMCID: PMC8038554 DOI: 10.3390/ijerph18073774] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 03/29/2021] [Accepted: 04/02/2021] [Indexed: 12/11/2022]
Abstract
We developed and validated a screening method for mycotoxin analysis in cereal products and spices. Ultra-high-performance liquid chromatography coupled with tandem mass spectrometry (UHPLC-MS/MS) was used for the analysis. Dispersive solid-phase extractions (d-SPEs) were used for the extraction of samples. Ochratoxin A (OTA), zearalenone (ZEA), aflatoxins (AFLA; AFB1, AFB2, AFG1, AFG2), deoxynivalenol (DON), fumonisin (FUMO; FB1, FB2, FB3), T2, and HT2 were validated in maize. AFLA and DON were validated in black pepper. The method satisfies the requirements of Commission Regulation (EC) no. 401/2006 and (EC) no. 1881/2006. The screening target concentration (STC) was under maximum permitted levels (MLs) for all mycotoxins validated. The method's performance was assessed by two different proficiencies and tested with 100 real samples.
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Affiliation(s)
- Licia Pantano
- Istituto Zooprofilattico Sperimentale della Sicilia, Via Gino Marinuzzi 3, 90129 Palermo, Italy; (L.P.); (L.L.S.); (F.O.); (C.B.); (M.D.B.); (A.M.); (A.V.)
| | - Ladislao La Scala
- Istituto Zooprofilattico Sperimentale della Sicilia, Via Gino Marinuzzi 3, 90129 Palermo, Italy; (L.P.); (L.L.S.); (F.O.); (C.B.); (M.D.B.); (A.M.); (A.V.)
| | - Francesco Olibrio
- Istituto Zooprofilattico Sperimentale della Sicilia, Via Gino Marinuzzi 3, 90129 Palermo, Italy; (L.P.); (L.L.S.); (F.O.); (C.B.); (M.D.B.); (A.M.); (A.V.)
| | - Francesco Giuseppe Galluzzo
- Istituto Zooprofilattico Sperimentale della Sicilia, Via Gino Marinuzzi 3, 90129 Palermo, Italy; (L.P.); (L.L.S.); (F.O.); (C.B.); (M.D.B.); (A.M.); (A.V.)
- Dipartimento di Scienze della Vita, Università degli studi di Modena e Reggio Emilia, Via Università 4, 41121 Modena, Italy
| | - Carmelo Bongiorno
- Istituto Zooprofilattico Sperimentale della Sicilia, Via Gino Marinuzzi 3, 90129 Palermo, Italy; (L.P.); (L.L.S.); (F.O.); (C.B.); (M.D.B.); (A.M.); (A.V.)
| | - Maria Drussilla Buscemi
- Istituto Zooprofilattico Sperimentale della Sicilia, Via Gino Marinuzzi 3, 90129 Palermo, Italy; (L.P.); (L.L.S.); (F.O.); (C.B.); (M.D.B.); (A.M.); (A.V.)
| | - Andrea Macaluso
- Istituto Zooprofilattico Sperimentale della Sicilia, Via Gino Marinuzzi 3, 90129 Palermo, Italy; (L.P.); (L.L.S.); (F.O.); (C.B.); (M.D.B.); (A.M.); (A.V.)
| | - Antonio Vella
- Istituto Zooprofilattico Sperimentale della Sicilia, Via Gino Marinuzzi 3, 90129 Palermo, Italy; (L.P.); (L.L.S.); (F.O.); (C.B.); (M.D.B.); (A.M.); (A.V.)
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19
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Zhu H, Liu C, Liu X, Quan Z, Liu W, Liu Y. A multi-colorimetric immunosensor for visual detection of ochratoxin A by mimetic enzyme etching of gold nanobipyramids. Mikrochim Acta 2021; 188:62. [PMID: 33534035 DOI: 10.1007/s00604-020-04699-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Accepted: 12/31/2020] [Indexed: 01/15/2023]
Abstract
A multi-colorimetric immunosensor basing on the mimetic enzyme etching of gold nanobipyramids (Au NBPs) was established to detect ochratoxin A (OTA). Octahedral Cu2O nanoparticles were successfully synthesized through a selective surface stabilization strategy, which can exhibit a peroxidase-like ability to oxidize 3,3',5,5'-tetramethylbenzidine (TMB). Au NBPs can be etched by the product, TMB2+, to form a significant longitudinal peak blue shift of local surface plasmon resonance. During the construction of the immunosensor, the microplate was coated with dopamine to immobilized OTA antigens, followed by the immunoreaction of OTA antibody and the Cu2O-labled secondary antibody. A linear relationship can be found between the local surface plasmon resonance (LSPR) peak changes with the logarithm of OTA concentration in a wide range from 1 ng/L to 5 μg/L, while the detection limit was 0.47 ng/L. Meanwhile, the approximate OTA concentration can be conveniently and intuitively observed by the vivid color changes. Benefiting from the high specificity, the proposed multi-colorimetric immunoassay detection of OTA in millet samples was achieved, indicating the available potential of the immunoassay for the determination of OTA in real samples.
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Affiliation(s)
- Hongshuai Zhu
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou, 510642, China.,The Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou, 510642, China
| | - Chuanhe Liu
- Instrumental Analysis & Research Center, South China Agricultural University, Guangzhou, 510642, China
| | - Xinxin Liu
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou, 510642, China
| | - Zhu Quan
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou, 510642, China
| | - Weipeng Liu
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou, 510642, China.
| | - Yingju Liu
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou, 510642, China. .,State Key Laboratory of Managing Biotic and Chemical Treats to the Quality and Safety of Agro-products, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China.
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20
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Current role of modern chromatography and mass spectrometry in the analysis of mycotoxins in food. Trends Analyt Chem 2021. [DOI: 10.1016/j.trac.2020.116156] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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21
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A colorimetric immunoassay based on cobalt hydroxide nanocages as oxidase mimics for detection of ochratoxin A. Anal Chim Acta 2020; 1132:101-109. [DOI: 10.1016/j.aca.2020.07.068] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 07/22/2020] [Accepted: 07/25/2020] [Indexed: 12/25/2022]
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22
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Tanveer ZI, Huang Q, Liu L, Jiang K, Nie D, Pan H, Chen Y, Liu X, Luan L, Han Z, Wu Y. Reduced graphene oxide-zinc oxide nanocomposite as dispersive solid-phase extraction sorbent for simultaneous enrichment and purification of multiple mycotoxins in Coptidis rhizoma (Huanglian) and analysis by liquid chromatography tandem mass spectrometry. J Chromatogr A 2020; 1630:461515. [PMID: 32911177 DOI: 10.1016/j.chroma.2020.461515] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 08/29/2020] [Accepted: 08/30/2020] [Indexed: 12/21/2022]
Abstract
In the current study, a robust dispersive solid-phase extraction (dSPE) strategy using reduced graphene oxide-zinc oxide (rGO-ZnO) nanocomposite as the sorbent was proposed for separation, purification and enrichment of 12 mycotoxins in Coptidis rhizoma (Huanglian). The targeted mycotoxins included aflatoxin B1, aflatoxin B2, aflatoxin G1, aflatoxin G2, aflatoxin M1, alternariol-methylether, mycophenolic acid, ochratoxin A, penitrem A, nivalenol, zearalenone and zearalanone. The rGO-ZnO nanocomposite was successfully synthesized through hydrothermal process by a modified Hummers method, and further characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), FTIR spectroscopy, ultraviolet-visible spectroscopy and X-ray diffraction (XRD). Several key parameters affecting the performance of the dSPE approach were extensively investigated, and after optimization, acetonitrile/water/formic acid (80/19/1, v/v/v) as the extraction solution, 2% acetonitrile as the adsorption solution, 15 mg rGO-ZnO as the sorbent, n-hexane as the washing solution, and methanol/formic acid (99/1, v/v) as the desorption solution presented an excellent purification and enrichment efficiency. Under the optimal dSPE procedure followed by analysis with ultra-high performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS), adequate linearity (R2 ≥ 0.991), high sensitivity (limit of quantification in the range of 0.09-0.41 µg kg-1), acceptable recovery (70.3-105.7%) and satisfactory precision (RSD 1.4-15.0%) were obtained. The analysis of 12 selected mycotoxins was also carried out in real Coptidis rhizoma (Huanglian) samples for applicability evaluation of the established method.
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Affiliation(s)
- Zafar Iqbal Tanveer
- College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, China
| | - Qingwen Huang
- College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, China; Institute for Agro-food Standards and Testing Technology, Shanghai Key Laboratory of Protected Horticultural Technology, Laboratory of Quality and Safety Risk Assessment for Agro-products (Shanghai), Ministry of Agriculture, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China
| | - Li Liu
- College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, China
| | - Keqiu Jiang
- College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, China
| | - Dongxia Nie
- Institute for Agro-food Standards and Testing Technology, Shanghai Key Laboratory of Protected Horticultural Technology, Laboratory of Quality and Safety Risk Assessment for Agro-products (Shanghai), Ministry of Agriculture, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China
| | - Hongye Pan
- College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, China
| | - Yong Chen
- College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, China
| | - Xuesong Liu
- College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, China
| | - Lianjun Luan
- College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, China
| | - Zheng Han
- Institute for Agro-food Standards and Testing Technology, Shanghai Key Laboratory of Protected Horticultural Technology, Laboratory of Quality and Safety Risk Assessment for Agro-products (Shanghai), Ministry of Agriculture, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China.
| | - Yongjiang Wu
- College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, China.
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Agriopoulou S, Stamatelopoulou E, Varzakas T. Advances in Analysis and Detection of Major Mycotoxins in Foods. Foods 2020; 9:E518. [PMID: 32326063 PMCID: PMC7230321 DOI: 10.3390/foods9040518] [Citation(s) in RCA: 74] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Accepted: 04/16/2020] [Indexed: 12/19/2022] Open
Abstract
Mycotoxins are the most widely studied biological toxins, which contaminate foods at very low concentrations. This review describes the emerging extraction techniques and the current and alternatives analytical techniques and methods that have been used to successfully detect and identify important mycotoxins. Some of them have proven to be particularly effective in not only the detection of mycotoxins, but also in detecting mycotoxin-producing fungi. Chromatographic techniques such as high-performance liquid chromatography coupled with various detectors like fluorescence, diode array, UV, liquid chromatography coupled with mass spectrometry, and liquid chromatography-tandem mass spectrometry, have been powerful tools for analyzing and detecting major mycotoxins. Recent progress of the development of rapid immunoaffinity-based detection techniques such as immunoassays and biosensors, as well as emerging technologies like proteomic and genomic methods, molecular techniques, electronic nose, aggregation-induced emission dye, quantitative NMR and hyperspectral imaging for the detection of mycotoxins in foods, have also been presented.
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Affiliation(s)
| | | | - Theodoros Varzakas
- Department of Food Science and Technology, University of the Peloponnese, Antikalamos, 24100 Kalamata, Greece; (S.A.); (E.S.)
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Dual Function of a Novel Bacterium, Slackia sp. D-G6: Detoxifying Deoxynivalenol and Producing the Natural Estrogen Analogue, Equol. Toxins (Basel) 2020; 12:toxins12020085. [PMID: 31991913 PMCID: PMC7076803 DOI: 10.3390/toxins12020085] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 01/16/2020] [Accepted: 01/24/2020] [Indexed: 01/03/2023] Open
Abstract
Deoxynivalenol (DON) is a highly abundant mycotoxin that exerts many adverse effects on humans and animals. Much effort has been made to control DON in the past, and bio-transformation has emerged as the most promising method. However, useful and effective application of bacterial bio-transformation for the purpose of inhibiting DON remains urgently needed. The current study isolated a novel DON detoxifying bacterium, Slackia sp. D-G6 (D-G6), from chicken intestines. D-G6 is a Gram-positive, non-sporulating bacterium, which ranges in size from 0.2–0.4 μm × 0.6–1.0 μm. D-G6 de-epoxidizes DON into a non-toxic form called DOM-1. Optimum conditions required for degradation of DON are 37–47 °C and a pH of 6–10 in WCA medium containing 50% chicken intestinal extract. Besides DON detoxification, D-G6 also produces equol (EQL) from daidzein (DZN), which shows high estrogenic activity, and prevents estrogen-dependent and age-related diseases effectively. Furthermore, the genome of D-G6 was sequenced and characterized. Thirteen genes that show potential for DON de-epoxidation were identified via comparative genomics. In conclusion, a novel bacterium that exhibits the dual function of detoxifying DON and producing the beneficial natural estrogen analogue, EQL, was identified.
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25
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Djekic I, Udovicki B, Kljusurić J, Papageorgiou M, Jovanovic J, Giotsas C, Djugum J, Tomic N, Rajkovic A. Exposure assessment of adult consumers in Serbia, Greece and Croatia to deoxynivalenol and zearalenone through consumption of major wheat-based products. WORLD MYCOTOXIN J 2019. [DOI: 10.3920/wmj2019.2452] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The main objective of this research was to perform an exposure assessment of mycotoxin intake through consumption of wheat-based products in Serbia, Croatia, and Greece by estimating deoxynivalenol (DON) and zearalenone (ZEA) exposure from wheat. Food consumption survey of wheat-based products has been performed during 2017 in the three countries with at least 1000 interviewees per country. Values for the concentration of DON and ZEA were extracted from available research published in this decade. Finally, a Monte Carlo analysis of 100,000 simulations was performed to estimate the intake of DON and ZEA from consumption of wheat-based products. Results revealed that the estimated daily wheat-borne intake of DON of the adult population in Croatia was 0.121 μg/kg bw/day, followed by Greece with 0.181 μg/kg bw/day and Serbia with 0.262 μg/kg bw/day. This shows that 0.25% of Croatian, 1.19% of Greek and 3.96% of Serbian adult population is exposed to higher daily dietary intakes of DON than recommended. Estimated daily wheat-borne intake of ZEA was 0.017 μg/kg bw/day in Greece, 0.026 μg/kg bw/day in Croatia and 0.050 μg/kg bw/day in Serbia. Higher intake of ZEA is associated with 0.62% of the Greek population, followed by 0.95% Croatian and 2.25% of Serbian citizens. This type of research is helpful to assess accurately the risk by DON/ZEA intake associated with the consumption of wheat-based products by consumers in these three countries. Distributions of potential mycotoxin intakes were highly right-skewed.
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Affiliation(s)
- I. Djekic
- Department of Food Safety and Quality Management, University of Belgrade, Faculty of Agriculture, Nemanjina 6, 11080 Belgrade, Republic of Serbia
| | - B. Udovicki
- Department of Food Safety and Quality Management, University of Belgrade, Faculty of Agriculture, Nemanjina 6, 11080 Belgrade, Republic of Serbia
| | - J.G. Kljusurić
- Faculty of Food Technology and Biotechnology, University of Zagreb, Pierottijeva ul. 6, 10000 Zagreb, Croatia
| | - M. Papageorgiou
- Food Technology Alexander Technological Educational Institute of Thessaloniki, POB 141, Thessaloniki 574 00, Greece
| | - J. Jovanovic
- Food Technology Alexander Technological Educational Institute of Thessaloniki, POB 141, Thessaloniki 574 00, Greece
| | - C. Giotsas
- Department of Food Safety and Food Quality, Faculty of Bioscience Engineering, Ghent University, Campus Coupure, A, Coupure Links 653, 9000 Ghent, Belgium
| | - J. Djugum
- Faculty of Food Technology and Biotechnology, University of Zagreb, Pierottijeva ul. 6, 10000 Zagreb, Croatia
- Ministry of Agriculture, Ulica grada Vukovara 78, Zagreb, Croatia
| | - N. Tomic
- Department of Food Safety and Quality Management, University of Belgrade, Faculty of Agriculture, Nemanjina 6, 11080 Belgrade, Republic of Serbia
| | - A. Rajkovic
- Department of Food Safety and Quality Management, University of Belgrade, Faculty of Agriculture, Nemanjina 6, 11080 Belgrade, Republic of Serbia
- Food Technology Alexander Technological Educational Institute of Thessaloniki, POB 141, Thessaloniki 574 00, Greece
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26
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Classical and emerging non-destructive technologies for safety and quality evaluation of cereals: A review of recent applications. Trends Food Sci Technol 2019. [DOI: 10.1016/j.tifs.2019.07.018] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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27
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Zhang Y, Pei F, Fang Y, Li P, Xia J, Sun L, Zou Y, Shen F, Hu Q. Interactions among Fungal Community, Fusarium Mycotoxins, and Components of Harvested Wheat under Simulated Storage Conditions. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:8411-8418. [PMID: 31246458 DOI: 10.1021/acs.jafc.9b02021] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Economic loss of postharvest wheat under poor storage conditions due to fungal spoilage and mycotoxin contamination is severe. In order to study the influencing factors of the aggravation of mildew in natural wheat during storage, we assessed changes in Fusarium mycotoxins by high performance liquid chromatography, changes in fungal communities by high-throughput sequencing, and changes in biochemical components in wheat stored under artificial simulation conditions. Deoxynivalenol was the dominant Fusarium mycotoxin, reaching 1103 μg/kg at 25 °C with 75% relative humidity after 30 weeks. Under these conditions, Fusarium dominated the fungal communities, and Fusarium graminearum was significantly negatively correlated with glutenin (p < 0.05). Low storage temperatures and low humidity result in lower levels of Fusarium mycotoxins. Different fungi tended to consume different wheat components, and the interaction between environmental and biological factors eventually leads to the deterioration of wheat quality. These findings might provide valuable information for control strategies of mildew occurrence during grain storage.
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Affiliation(s)
- Yingyue Zhang
- College of Food Science and Engineering , Nanjing University of Finance and Economics, Collaborative Innovation Center for Modern Grain Circulation and Safety, Key Laboratory of Grains and Oils Quality Control and Processing , Nanjing 210023 , China
- College of Food and Pharmaceutical Engineering , Nanjing Normal University , Nanjing 210023 , China
| | - Fei Pei
- College of Food Science and Engineering , Nanjing University of Finance and Economics, Collaborative Innovation Center for Modern Grain Circulation and Safety, Key Laboratory of Grains and Oils Quality Control and Processing , Nanjing 210023 , China
| | - Yong Fang
- College of Food Science and Engineering , Nanjing University of Finance and Economics, Collaborative Innovation Center for Modern Grain Circulation and Safety, Key Laboratory of Grains and Oils Quality Control and Processing , Nanjing 210023 , China
| | - Peng Li
- College of Food Science and Engineering , Nanjing University of Finance and Economics, Collaborative Innovation Center for Modern Grain Circulation and Safety, Key Laboratory of Grains and Oils Quality Control and Processing , Nanjing 210023 , China
| | - Ji Xia
- College of Food Science and Engineering , Nanjing University of Finance and Economics, Collaborative Innovation Center for Modern Grain Circulation and Safety, Key Laboratory of Grains and Oils Quality Control and Processing , Nanjing 210023 , China
| | - Lei Sun
- College of Food Science and Engineering , Nanjing University of Finance and Economics, Collaborative Innovation Center for Modern Grain Circulation and Safety, Key Laboratory of Grains and Oils Quality Control and Processing , Nanjing 210023 , China
| | - Yanyu Zou
- College of Food Science and Engineering , Nanjing University of Finance and Economics, Collaborative Innovation Center for Modern Grain Circulation and Safety, Key Laboratory of Grains and Oils Quality Control and Processing , Nanjing 210023 , China
| | - Fei Shen
- College of Food Science and Engineering , Nanjing University of Finance and Economics, Collaborative Innovation Center for Modern Grain Circulation and Safety, Key Laboratory of Grains and Oils Quality Control and Processing , Nanjing 210023 , China
| | - Qiuhui Hu
- College of Food Science and Engineering , Nanjing University of Finance and Economics, Collaborative Innovation Center for Modern Grain Circulation and Safety, Key Laboratory of Grains and Oils Quality Control and Processing , Nanjing 210023 , China
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28
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Zhang Y, Pei F, Fang Y, Li P, Zhao Y, Shen F, Zou Y, Hu Q. Comparison of concentration and health risks of 9 Fusarium mycotoxins in commercial whole wheat flour and refined wheat flour by multi-IAC-HPLC. Food Chem 2019; 275:763-769. [DOI: 10.1016/j.foodchem.2018.09.127] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Revised: 09/04/2018] [Accepted: 09/20/2018] [Indexed: 10/28/2022]
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29
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Wu SS, Wei M, Wei W, Liu Y, Liu S. Electrochemical aptasensor for aflatoxin B1 based on smart host-guest recognition of β-cyclodextrin polymer. Biosens Bioelectron 2019; 129:58-63. [PMID: 30684855 DOI: 10.1016/j.bios.2019.01.022] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Revised: 01/15/2019] [Accepted: 01/17/2019] [Indexed: 12/23/2022]
Abstract
Developing a simple and reliable method for the detection of the highly concerning mycotoxin, aflatoxin B1 (AFB1), is of great importance to food safety monitoring. In this study, a simple electrochemical aptasensor was presented for the detection of AFB1 based on the host-guest recognition between ferrocene and β-cyclodextrin (β-CD). Fc-labeled aptamer of AFB1 first hybridized with its complementary Fc-cDNA. Two ferrocene molecules were brought closely together and couldn't enter into the cavity of β-CD modified on the electrode. Negligible signal could be observed. Once AFB1 captured the aptamer from the AFB1-sensitive dsDNA, Fc-cDNA was released and subsequently entered into the cavity of β-CD to form inclusion complexes, giving rise to an distinct increase of Ret and peak current because of the molecular recognition of β-CD. AC impedance method is more sensitive than DPV method. The electrochemical aptasensor displayed a sensitive response to AFB1 in a wide linear range of 0.1 pg/mL to 10 ng/mL, with a low detection limit of 0.049 pg/mL (0.147 pmol/mL) by AC impedance detection, which is 10-100 lower than previously reported methods. The aptasensor has good selectivity and reliability, which has been successfully applied to the determination of AFB1 in real peanut oil samples with recoveries ranging from 94.5% to 106.7% and inter-assay RSD lower than 11.51%.
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Affiliation(s)
- Shuang Shuang Wu
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
| | - Min Wei
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China; College of Food Science and Technology, Henan University of Technology, Zhengzhou 450001, China.
| | - Wei Wei
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China.
| | - Yong Liu
- College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, PR China
| | - Songqin Liu
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
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30
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Huang P, Liu Q, Wang J, Ma Z, Lu J, Kong W. Development of an economic ultrafast liquid chromatography with tandem mass spectrometry method for trace analysis of multiclass mycotoxins in Polygonum multiflorum. J Sep Sci 2018; 42:491-500. [PMID: 30462887 DOI: 10.1002/jssc.201800602] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Revised: 10/25/2018] [Accepted: 10/25/2018] [Indexed: 01/21/2023]
Abstract
Rapid, economic, and highly effective determination of multiple mycotoxins in complex matrices has given huge challenges for the analytical method. In this study, an economic analytical strategy based on sensitive and rapid ultrafast liquid chromatography coupled to hybrid triple quadrupole/linear ion trap mass spectrometry technique was developed for the determination of seven mycotoxins of different chemical classes (aflatoxin B1 , B2 , G1 , and G2 , ochratoxin A, T-2 toxin, and HT-2 toxin) in Polygonum multiflorum. Target mycotoxins were completely extracted using a modified quick, easy, cheap effective, rugged, and safe method without additional clean-up steps. The types of extraction solvents and adsorbents for the extraction procedure were optimized to achieve high recoveries and reduce coextractives in the final extracts. Due to significant matrix effects for all analytes (≤68.9% and ≥110.0%), matrix-matched calibration curves were introduced for reliable quantification, exploring excellent linearity for the seven mycotoxins with coefficients of determination >0.9992. The method allowed high sensitivity with limit of detection in the range of 0.031-2.5 μg/kg and limit of quantitation in the range of 0.078-6.25 μg/kg, as well as satisfactory precision with relative standard deviations lower than 8%. Recovery rates were between 74.3 and 119.8% with relative standard deviations below 7.43%. The proposed method was successfully applied for 24 batches of P. multiflorum samples, and six samples were found to be positive with aflatoxin B1 , B2 , G1 , or ochratoxin A. The method with significant advantages, including minimum analytical time, low time and solvent consumption, and high sensitivity, would be a preferred candidate for economic analysis of multiclass mycotoxins in complex matrices.
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Affiliation(s)
- Pinxuan Huang
- Pharmacy College, Jinzhou Medical University, Jinzhou, P. R. China.,Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, P. R. China
| | - Qiutao Liu
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, P. R. China.,Shenzhen Key Laboratory of Drug Quality Standard Research, Shenzhen Institute for Drug Control, Shenzhen, P. R. China
| | - Jiabo Wang
- China Military Institute of Chinese Medicine, 302 Military Hospital, Beijing, P. R. China
| | - Zhijie Ma
- Department of Pharmacy, Beijing Friendship Hospital, Capital Medical University, Beijing, P. R. China
| | - Jinghua Lu
- Pharmacy College, Jinzhou Medical University, Jinzhou, P. R. China
| | - Weijun Kong
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, P. R. China
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31
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Li Y, Sun M, Mao X, You Y, Gao Y, Yang J, Wu Y. Mycotoxins Contaminant in Kelp: A Neglected Dietary Exposure Pathway. Toxins (Basel) 2018; 10:E481. [PMID: 30463254 PMCID: PMC6266055 DOI: 10.3390/toxins10110481] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Revised: 10/28/2018] [Accepted: 11/12/2018] [Indexed: 02/06/2023] Open
Abstract
In order to investigated current occurrence of major mycotoxins in dietary kelp in Shandong Province in Northern China, a reliable, sensitive, and rapid liquid chromatography tandem mass spectrometry (LC-MS/MS) method was developed and validated for simultaneous determination of the 7 most frequent mycotoxins, including 3-acetoxy deoxynivalenol (3AcDON), 15-acetoxy deoxynivalenol (15AcDON), Deoxynivalenol (DON), Fusarenon-X (F-X), Nivalenol (NIV), T-2 toxin (T-2), and Zearalenone (ZEA). Based on optimized pretreatment and chromatographic and mass spectrometry conditions, these target analytes could be monitored with mean recoveries from 72.59~107.34%, with intra⁻day RSD < 9.21%, inter⁻day RSD < 9.09%, LOD < 5.55 μg kg-1, and LOQ < 18.5 μg kg-1. Approximately 43 kelp samples were detected, 3AcDON/15AcDON ranged from 15.3 to 162.5 μg kg-1 with positive rate of 86% in Shandong Province in Northern China. Considering there were no related investigations about mycotoxin contamination in kelp, the high contamination rate of 3AcDON/15AcDON in kelp showed a neglected mycotoxin exposure pathway, which might lead to high dietary exposure risk to consumers.
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Affiliation(s)
- Yanshen Li
- Marine Product Quality and Safety Inspection Key Laboratory in Shandong Province, College of Life Science, Yantai University, Yantai 264005, China.
| | - Mingxue Sun
- Marine Product Quality and Safety Inspection Key Laboratory in Shandong Province, College of Life Science, Yantai University, Yantai 264005, China.
| | - Xin Mao
- Marine Product Quality and Safety Inspection Key Laboratory in Shandong Province, College of Life Science, Yantai University, Yantai 264005, China.
| | - Yanli You
- Marine Product Quality and Safety Inspection Key Laboratory in Shandong Province, College of Life Science, Yantai University, Yantai 264005, China.
| | - Yonglin Gao
- Marine Product Quality and Safety Inspection Key Laboratory in Shandong Province, College of Life Science, Yantai University, Yantai 264005, China.
| | - Jianrong Yang
- Marine Product Quality and Safety Inspection Key Laboratory in Shandong Province, College of Life Science, Yantai University, Yantai 264005, China.
| | - Yongning Wu
- NHC Key Lab of Food Safety Risk Assessment, China National Center for Food Safety Risk Assessment, Beijing 100022, China.
- College of Food Science and Engineering, Shandong Agricultural University, Tai'an 271018, China.
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32
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Xiao MW, Bai XL, Liu YM, Yang L, Liao X. Simultaneous determination of trace Aflatoxin B 1 and Ochratoxin A by aptamer-based microchip capillary electrophoresis in food samples. J Chromatogr A 2018; 1569:222-228. [PMID: 30037541 DOI: 10.1016/j.chroma.2018.07.051] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Revised: 07/07/2018] [Accepted: 07/16/2018] [Indexed: 01/12/2023]
Abstract
An aptamer-based microchip capillary electrophoresis coupled with laser induced fluorescence (MCE-LIF) detection method for fast determination of Aflatoxin B1 (AFB1) and Ochratoxin A (OTA) was developed. Aptamers that are specific to these two mycotoxins were first hybridized with their aptamer complementary oligonucleotides. The double strand DNA that comes in contact with mycotoxin-containing environment would be unwound into separate aptamer-mycotoxin complex and aptamer complementary single strand. Different types of oligonucleotides can be separated in MCE and detected under the aid of fluorescent dye SYBR gold in LIF detection unit. Under the optimal conditions, on-chip aptamer-mycotoxin conjugates analysis was achieved within 3 min with extremely low LODs (0.026 ng/mL for AFB1 and 0.021 ng/mL for OTA). Specificity study indicated that other major mycotoxins would not cross-react with these two aptamers, demonstrating the good selectivity of the proposed method. Quantification of trace AFB1 and OTA in real food samples was carried out and satisfactory recoveries were obtained. It is demonstrated that this method is fast, facile and specific for Simultaneous determination of trace AFB1 and OTA from foodstuffs.
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Affiliation(s)
- Meng-Wei Xiao
- Chengdu Institute of Biology, Chinese Academy of Sciences, No.9, Section 4, South Renmin Road, Chengdu, Sichuan, China; University of Chinese Academy of Sciences, Beijing, China.
| | - Xiao-Lin Bai
- Chengdu Institute of Biology, Chinese Academy of Sciences, No.9, Section 4, South Renmin Road, Chengdu, Sichuan, China.
| | - Yi-Ming Liu
- Chengdu Institute of Biology, Chinese Academy of Sciences, No.9, Section 4, South Renmin Road, Chengdu, Sichuan, China; Department of Chemistry and Biochemistry, Jackson State University, 1400 Lynch Street, Jackson, MS 39217, USA.
| | - Li Yang
- Maccura Biotechnology Co. Ltd, 2nd Anhe Road, Hi-Tech Industrial Development Zone, Chengdu, Sichuan, China.
| | - Xun Liao
- Chengdu Institute of Biology, Chinese Academy of Sciences, No.9, Section 4, South Renmin Road, Chengdu, Sichuan, China.
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33
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Sun S, Yao K, Zhao S, Zheng P, Wang S, Zeng Y, Liang D, Ke Y, Jiang H. Determination of aflatoxin and zearalenone analogs in edible and medicinal herbs using a group-specific immunoaffinity column coupled to ultra-high-performance liquid chromatography with tandem mass spectrometry. J Chromatogr B Analyt Technol Biomed Life Sci 2018; 1092:228-236. [PMID: 29909149 DOI: 10.1016/j.jchromb.2018.06.012] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Revised: 06/04/2018] [Accepted: 06/06/2018] [Indexed: 01/08/2023]
Abstract
Six aflatoxins (AFs; AF B1, B2, G1, G2, M1 and M2) and six zearalenone (ZEN) analogs (ZEN, zearalanone, α-zeralanol, β-zeralanol, α-zearalenol, and β-zearalenol) were simultaneously extracted from edible and medicinal herbs using a group-specific immunoaffinity column (IAC) and then identified by ultra-high-performance liquid chromatography tandem mass spectrometry (UPLC-MS/MS). The IAC was prepared by coupling N-hydroxysuccinimide-activated Sepharose 4B Fast Flow gel with two group-specific monoclonal antibodies. The column capacities to six AFs and six ZEN analogs ranged from 100.2 ng to 167.1 ng and from 59.5 ng to 244.4 ng, respectively. The IAC-UPLC-MS/MS method was developed and validated with three different matrices (Chinese yam [Dioscorea polystachya], Platycodon grandiflorum and coix seed [Semen Coicis]). Recoveries of twelve analytes from edible and medicinal herbs were in the range of 64.7%-112.1%, with relative standard deviations below 13.7%. The limits of quantification were in the range from 0.08 μg kg-1 to 0.2 μg kg-1. The method was proven to be sensitive and accurate, and suitable for the determination of real samples.
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Affiliation(s)
- Shujuan Sun
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, Beijing 100193, People's Republic of China
| | - Kai Yao
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, Beijing 100193, People's Republic of China
| | - Sijun Zhao
- China Animal Health and Epidemiology Center, Qingdao 266032, People's Republic of China
| | - Pimiao Zheng
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, Beijing 100193, People's Republic of China
| | - Sihan Wang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, Beijing 100193, People's Republic of China
| | - Yuyang Zeng
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, Beijing 100193, People's Republic of China
| | - Demei Liang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, Beijing 100193, People's Republic of China
| | - Yuebin Ke
- Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, People's Republic of China
| | - Haiyang Jiang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, Beijing 100193, People's Republic of China.
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34
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Qian J, Ren C, Wang C, Chen W, Lu X, Li H, Liu Q, Hao N, Li H, Wang K. Magnetically controlled fluorescence aptasensor for simultaneous determination of ochratoxin A and aflatoxin B1. Anal Chim Acta 2018; 1019:119-127. [PMID: 29625677 DOI: 10.1016/j.aca.2018.02.063] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Revised: 02/09/2018] [Accepted: 02/15/2018] [Indexed: 01/07/2023]
Abstract
Development of an efficient method for the simultaneous detection of two highly concerning mycotoxins, ochratoxin A (OTA) and aflatoxin B1 (AFB1), is of great significance on food safety monitoring. Herein, a magnetically controlled fluorescence aptasensor for simultaneous determination of OTA and AFB1 has been successfully developed. The working principle of the aptasensor is based on the specific aptamer-mycotoxin recognition and further leads to the partial release of two distinguishable fluorescence labels from the magnetic carriers. Through the magnetic separation, the reporter probes in the supernatant solution can be collected and converted into a sensitive fluorescence signal with dual emission peaks. This aptasensor provided a wide detection range of 2 pg mL-1 - 5 ng mL-1 for OTA and 5 pg mL-1 - 10 ng mL-1 for AFB1. The new easy-to-wash and simple-to-use approach offers a simultaneous and high selective detection with high sensitivity (limits of detection of 0.67 and 1.70 pg mL-1 for OTA and AFB1, respectively). Remarkable accuracy (relative standard deviation < 5.6%) during the mycotoxins determination as well as excellent quantitative recoveries (95-108%) during the analysis of the spiked corn samples were also achieved. This simple aptasensing scheme provides a new avenue for high throughput screen of dual mycotoxins due to its simple manipulation, short assay times, high selectivity and sensitivity.
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Affiliation(s)
- Jing Qian
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China.
| | - Chanchan Ren
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Chengquan Wang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Wei Chen
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Xiaoting Lu
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Henan Li
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Qian Liu
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Nan Hao
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Huaming Li
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Kun Wang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China.
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