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Wang Y, Zhang C, Wang J, Knopp D. Recent Progress in Rapid Determination of Mycotoxins Based on Emerging Biorecognition Molecules: A Review. Toxins (Basel) 2022; 14:73. [PMID: 35202100 PMCID: PMC8874725 DOI: 10.3390/toxins14020073] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 01/14/2022] [Accepted: 01/15/2022] [Indexed: 12/12/2022] Open
Abstract
Mycotoxins are secondary metabolites produced by fungal species, which pose significant risk to humans and livestock. The mycotoxins which are produced from Aspergillus, Penicillium, and Fusarium are considered most important and therefore regulated in food- and feedstuffs. Analyses are predominantly performed by official laboratory methods in centralized labs by expert technicians. There is an urgent demand for new low-cost, easy-to-use, and portable analytical devices for rapid on-site determination. Most significant advances were realized in the field bioanalytical techniques based on molecular recognition. This review aims to discuss recent progress in the generation of native biomolecules and new bioinspired materials towards mycotoxins for the development of reliable bioreceptor-based analytical methods. After brief presentation of basic knowledge regarding characteristics of most important mycotoxins, the generation, benefits, and limitations of present and emerging biorecognition molecules, such as polyclonal (pAb), monoclonal (mAb), recombinant antibodies (rAb), aptamers, short peptides, and molecularly imprinted polymers (MIPs), are discussed. Hereinafter, the use of binders in different areas of application, including sample preparation, microplate- and tube-based assays, lateral flow devices, and biosensors, is highlighted. Special focus, on a global scale, is placed on commercial availability of single receptor molecules, test-kits, and biosensor platforms using multiplexed bead-based suspension assays and planar biochip arrays. Future outlook is given with special emphasis on new challenges, such as increasing use of rAb based on synthetic and naïve antibody libraries to renounce animal immunization, multiple-analyte test-kits and high-throughput multiplexing, and determination of masked mycotoxins, including stereoisomeric degradation products.
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Affiliation(s)
- Yanru Wang
- College of Food Science and Engineering, Northwest A&F University, Yangling, Xianyang 712100, China; (Y.W.); (C.Z.)
| | - Cui Zhang
- College of Food Science and Engineering, Northwest A&F University, Yangling, Xianyang 712100, China; (Y.W.); (C.Z.)
| | - Jianlong Wang
- College of Food Science and Engineering, Northwest A&F University, Yangling, Xianyang 712100, China; (Y.W.); (C.Z.)
| | - Dietmar Knopp
- Chair for Analytical Chemistry and Water Chemistry, Institute of Hydrochemistry, Technische Universitat München, Elisabeth-Winterhalter-Weg 6, D-81377 München, Germany
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Laser-Induced Graphene Electrodes Modified with a Molecularly Imprinted Polymer for Detection of Tetracycline in Milk and Meat. SENSORS 2021; 22:s22010269. [PMID: 35009811 PMCID: PMC8749683 DOI: 10.3390/s22010269] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 12/24/2021] [Accepted: 12/27/2021] [Indexed: 12/31/2022]
Abstract
Tetracycline (TC) is a widely known antibiotic used worldwide to treat animals. Its residues in animal-origin foods cause adverse health effects to consumers. Low-cost and real-time measuring systems of TC in food samples are, therefore, extremely needed. In this work, a three-electrode sensitive and label-free sensor was developed to detect TC residues from milk and meat extract samples, using CO2 laser-induced graphene (LIG) electrodes modified with gold nanoparticles (AuNPs) and a molecularly imprinted polymer (MIP) used as a synthetic biorecognition element. LIG was patterned on a polyimide (PI) substrate, reaching a minimum sheet resistance (Rsh) of 17.27 ± 1.04 Ω/sq. The o-phenylenediamine (oPD) monomer and TC template were electropolymerized on the surface of the LIG working electrode to form the MIP. Surface morphology and electrochemical techniques were used to characterize the formation of LIG and to confirm each modification step. The sensitivity of the sensor was evaluated by differential pulse voltammetry (DPV), leading to a limit of detection (LOD) of 0.32 nM, 0.85 nM, and 0.80 nM in buffer, milk, and meat extract samples, respectively, with a working range of 5 nM to 500 nM and a linear response range between 10 nM to 300 nM. The sensor showed good LOD (0.32 nM), reproducibility, and stability, and it can be used as an alternative system to detect TC from animal-origin food products.
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Comparison study of nanofibers, composite nano/microfiber materials, molecularly imprinted polymers, and core-shell sorbents used for on-line extraction-liquid chromatography of ochratoxins in Tokaj wines. Microchem J 2021. [DOI: 10.1016/j.microc.2021.106680] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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Habschied K, Kanižai Šarić G, Krstanović V, Mastanjević K. Mycotoxins-Biomonitoring and Human Exposure. Toxins (Basel) 2021; 13:113. [PMID: 33546479 PMCID: PMC7913644 DOI: 10.3390/toxins13020113] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 01/23/2021] [Accepted: 01/26/2021] [Indexed: 12/31/2022] Open
Abstract
Mycotoxins are secondary metabolites produced by fungal species that commonly have a toxic effect on human and animal health. Different foodstuff can be contaminated and are considered the major source of human exposure to mycotoxins, but occupational and environmental exposure can also significantly contribute to this problem. This review aims to provide a short overview of the occurrence of toxigenic fungi and regulated mycotoxins in foods and workplaces, following the current literature and data presented in scientific papers. Biomonitoring of mycotoxins in plasma, serum, urine, and blood samples has become a common method for determining the exposure to different mycotoxins. Novel techniques are more and more precise and accurate and are aiming toward the simultaneous determination of multiple mycotoxins in one analysis. Application of liquid chromatography (LC) methodologies, coupled with tandem mass spectrometry (MS/MS) or high-resolution mass spectrometry (HRMS) has become a common and most reliable method for determining the exposure to mycotoxins. Numerous references confirm the importance of mycotoxin biomonitoring to assess the exposure for humans and animals. The objectives of this paper were to review the general approaches to biomonitoring of different mycotoxins and the occurrence of toxigenic fungi and their mycotoxins, using recent literature sources.
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Affiliation(s)
- Kristina Habschied
- Department of Process Engineering, Faculty of Food Technology Osijek, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia; (V.K.); (K.M.)
| | - Gabriella Kanižai Šarić
- Department of Agroecology and Environment Protection, Faculty of Agrobiotechnical Sciences Osijek, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia;
| | - Vinko Krstanović
- Department of Process Engineering, Faculty of Food Technology Osijek, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia; (V.K.); (K.M.)
| | - Krešimir Mastanjević
- Department of Process Engineering, Faculty of Food Technology Osijek, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia; (V.K.); (K.M.)
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Lv L, Wang X. Recent Advances in Ochratoxin A Electrochemical Biosensors: Recognition Elements, Sensitization Technologies, and Their Applications. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:4769-4787. [PMID: 32243155 DOI: 10.1021/acs.jafc.0c00258] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Ochratoxin A (OTA) is a class of mycotoxin that are mainly produced by Aspergillus and Penicillium and widely found in plant origin food. OTA-contaminated foods can cause serious harm to animals and humans, while high stability of OTA makes it difficult to remove in conventional food processing. Thus, sensitive and rapid detection of OTA undoubtedly plays an important role in OTA prevention and control. In this paper, the conventional and novel methods of OTA at home and abroad are summarized and compared. The latest research progress and related applications of novel OTA electrochemical biosensors are mainly described with a new perspective. We innovatively divided the recognition element into single and combined recognition elements. Specifically, signal amplification technologies applied to the OTA electrochemical aptasensor are proposed. Furthermore, summary of the current limitations and future challenges in OTA analysis is included, which provide reference for the further research and applications.
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Affiliation(s)
- Liangrui Lv
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China
| | - Xiaoying Wang
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China
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Garcia Y, Canfarotta F, Smolinska-Kempisty K, Piletsky SA, Pereira E. Competitive pseudo-ELISA based on molecularly imprinted nanoparticles for microcystin-LR detection in water. PURE APPL CHEM 2019. [DOI: 10.1515/pac-2018-1207] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Abstract
Microcystins (MCs) are dangerous cyanotoxins for the public health, and microcystin-LR (MC-LR) is one of most toxic, dangerous, and frequently found in water bodies. Typically, the detection of MCs is carried out by means of competitive ELISAs which, however, need special precautions for handling and storage, due to the stability of the antibodies used in this test. Molecularly imprinted nanoparticles (nanoMIPs) represents more robust and cost-effective alternative to antibodies. In this work, we developed a competitive pseudo-ELISA based on nanoMIPs (which are used in place of natural antibodies), for the detection of microcystin-LR (MC-LR). This pseudo-ELISA showed a linear response towards MC-LR, showing high affinity and low cross-reactivity against another analogue toxin (microcystin-YR). The analytical recovery of MC-LR in the analysis of water samples by the proposed pseudo-ELISA was 96 %–130 % and the limit of detection was 2.64 × 10−4 nM. The obtained results suggest that this competitive pseudo-ELISA could have high potential in the detection of toxins, due to its rapid, sensitive and accurate detection of toxin in water samples.
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Affiliation(s)
- Yadiris Garcia
- Department of Analytical and Inorganic Chemistry, Faculty of Chemical Science , University of Concepción , Concepción , Chile
| | - Francesco Canfarotta
- MIP Diagnostics Ltd, University of Leicester , Fielding Johnson Building , Leicester LE1 7RH , UK
| | - Katarzyna Smolinska-Kempisty
- Department of Chemistry , University of Leicester , University Road , Leicester, LE1 7RH , UK
- Wroclaw University of Science and Technology , Faculty of Chemistry, Department of Polymer and Carbon Materials , Wyb. St. Wyspianskiego 27 , 50-370 Wroclaw , Poland
| | - Sergey A. Piletsky
- Department of Chemistry , University of Leicester , University Road , Leicester, LE1 7RH , UK
| | - Eduardo Pereira
- Department of Analytical and Inorganic Chemistry, Faculty of Chemical Science , University of Concepción , Concepción , Chile
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Shafizadeh F, Taghizadeh M, Hassanpour S. Preparation of a novel magnetic Pd(II) ion-imprinted polymer for the fast and selective adsorption of palladium ions from aqueous solutions. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:18493-18508. [PMID: 31044383 DOI: 10.1007/s11356-019-05233-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2018] [Accepted: 04/22/2019] [Indexed: 06/09/2023]
Abstract
A novel magnetic ion-imprinted polymer with high accessibility to palladium ions was synthesized via co-precipitation polymerization. Accordingly, a ternary complex composed of PdCl2 as an imprinting ion, 8-aminoquinoline (AQ) as a ligand, and 4-vinyl pyridine (4-VP) as a complexing monomer was applied to Fe3O4@SiO2 as magnetic core, followed by precipitation polymerization using 2-hydroxyethyl methacrylate (2-HEMA) as a co-monomer, ethylene glycol dimethacrylate (EGDMA) as the crosslinker, and 2,2-azobisisobutyronitrile (AIBN) as an initiator in the presence of 2-methoxyethanol as a solvent. The palladium ions were leached out by a solution containing 50% (v/v) HCl. The synthesized polymer was characterized physically and morphologically using different techniques. In order to assess the conditions required for adsorption, as well as the selectivity and reusability, batch adsorption experiments were carried out. The experiments exhibited that the maximum adsorption capacity was about 65.75 mg g-1 at 25 °C, while the pH solution and the adsorbent dose were 4 and 1 g L-1, respectively. Kinetic studies of experimental data demonstrated that they correspond very much to the pseudo-second-order kinetic model. The development of the Langmuir and Freundlich isothermal models on the equilibrium data proved to correspond well to the Langmuir isotherm model. Interferences studies of the magnetic polymer demonstrated higher affinity and discernment for palladium ions than other co-existing ions in the solutions. Spontaneous (ΔG < 0) and exothermic (ΔH < 0) behavior of the adsorption process is confirmed by thermodynamic studies. In addition, the affinity of the spent polymer has not been dramatically reduced over at least five regeneration cycles.
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Affiliation(s)
- Fatemeh Shafizadeh
- Chemical Engineering Department, Babol Noshirvani University of Technology, P.O. Box 484, Babol, 4714871167, Iran
| | - Majid Taghizadeh
- Chemical Engineering Department, Babol Noshirvani University of Technology, P.O. Box 484, Babol, 4714871167, Iran.
| | - Samaneh Hassanpour
- Chemical Engineering Department, Babol Noshirvani University of Technology, P.O. Box 484, Babol, 4714871167, Iran
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Rapid screening of ochratoxin A in wheat by infrared spectroscopy. Food Chem 2019; 282:95-100. [DOI: 10.1016/j.foodchem.2019.01.008] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Revised: 11/01/2018] [Accepted: 01/03/2019] [Indexed: 12/26/2022]
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Zhang X, Wang Z, Xie H, Sun R, Cao T, Paudyal N, Fang W, Song H. Development of a Magnetic Nanoparticles-Based Screen-Printed Electrodes (MNPs-SPEs) Biosensor for the Quantification of Ochratoxin A in Cereal and Feed Samples. Toxins (Basel) 2018; 10:toxins10080317. [PMID: 30082606 PMCID: PMC6115714 DOI: 10.3390/toxins10080317] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Revised: 08/02/2018] [Accepted: 08/03/2018] [Indexed: 12/19/2022] Open
Abstract
A rapid and sensitive electrochemical biosensor based on magnetic nanoparticles and screen-printed electrodes (MNPs-SPEs sensor) was developed for the detection of ochratoxin A (OTA) in cereal and feed samples. Different types of magnetic nanoparticles-based ELISA (MNPs-ELISA) were optimized, and the signal detection, as well as sensitivity, was enhanced by the combined use of screen-printed electrodes (SPEs). Under the optimized conditions, the calibration curve of the MNPs-SPEs sensor was y = 0.3372x + 0.8324 (R2 = 0.9805). The linear range of detection and the detection limit were 0.01–0.82 ng/mL and 0.007 ng/mL, respectively. In addition, 50% inhibition (IC50) was detectable at 0.10 ng/mL. The limit of detection (LOD) of this MNPs-SPEs sensor in cereal and feed samples was 0.28 μg/kg. The recovery rates in spiked samples were between 78.7% and 113.5%, and the relative standard deviations (RSDs) were 3.6–9.8%, with the coefficient of variation lower than 15%. Parallel analysis of commercial samples (corn, wheat, and feedstuff) showed a good correlation between MNPs-SPEs sensor and liquid chromatography tandem mass spectrometry (LC/MS-MS). This new method provides a rapid, highly sensitive, and less time-consuming method to determine levels of ochratoxin A in cereal and feedstuff samples.
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Affiliation(s)
- Xian Zhang
- China-Australian Joint Laboratory for Animal Health Big Data Analytics, Zhejiang Provincial Engineering Laboratory for Animal Health Inspection and Internet Technology, College of Animal Science and Technology, Zhejiang A&F University, Lin'an 311300, China.
- Zhejiang University Institute of Preventive Veterinary Medicine & Zhejiang Provincial Key Laboratory of Preventive Veterinary Medicine, 388 Yuhangtang Road, Hangzhou 310058, China.
| | - Zuohuan Wang
- Zhejiang University Institute of Preventive Veterinary Medicine & Zhejiang Provincial Key Laboratory of Preventive Veterinary Medicine, 388 Yuhangtang Road, Hangzhou 310058, China.
| | - Hui Xie
- Zhejiang Key Laboratory of Experimental Animal and Safety Evaluation, Zhejiang Academy of Medical Sciences, Hangzhou 310013, China.
| | - Renjie Sun
- Zhejiang University Institute of Preventive Veterinary Medicine & Zhejiang Provincial Key Laboratory of Preventive Veterinary Medicine, 388 Yuhangtang Road, Hangzhou 310058, China.
| | - Tong Cao
- Zhejiang University Institute of Preventive Veterinary Medicine & Zhejiang Provincial Key Laboratory of Preventive Veterinary Medicine, 388 Yuhangtang Road, Hangzhou 310058, China.
| | - Narayan Paudyal
- Zhejiang University Institute of Preventive Veterinary Medicine & Zhejiang Provincial Key Laboratory of Preventive Veterinary Medicine, 388 Yuhangtang Road, Hangzhou 310058, China.
| | - Weihuan Fang
- China-Australian Joint Laboratory for Animal Health Big Data Analytics, Zhejiang Provincial Engineering Laboratory for Animal Health Inspection and Internet Technology, College of Animal Science and Technology, Zhejiang A&F University, Lin'an 311300, China.
- Zhejiang University Institute of Preventive Veterinary Medicine & Zhejiang Provincial Key Laboratory of Preventive Veterinary Medicine, 388 Yuhangtang Road, Hangzhou 310058, China.
| | - Houhui Song
- China-Australian Joint Laboratory for Animal Health Big Data Analytics, Zhejiang Provincial Engineering Laboratory for Animal Health Inspection and Internet Technology, College of Animal Science and Technology, Zhejiang A&F University, Lin'an 311300, China.
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Zejli H, Goud KY, Marty JL. Label free aptasensor for ochratoxin A detection using polythiophene-3-carboxylic acid. Talanta 2018; 185:513-519. [PMID: 29759234 DOI: 10.1016/j.talanta.2018.03.089] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2018] [Revised: 03/24/2018] [Accepted: 03/26/2018] [Indexed: 01/17/2023]
Abstract
This work demonstrates the development of electrochemical aptasensor using ochratoxin A (OTA) aptamers. Different aptamer coupling strategies were tested using polythiophene-carboxylic acid (PT3C) and polypyrrole-3-carboxylic acid (PP3C). The best sensitivity was recorded by polythiophene-3-carboxylic acid (PT3C) on screen-printed carbon electrode (SPCE) to attain the direct detection of OTA. The quantification of OTA was achieved by using electrochemical impedance spectroscopy. A good dynamic range 0.125-2.5 ng ml-1 was obtained for OTA with limit of detection (LOD) 0.125 ng ml-1 and Limit of quantification (LOQ) 0.3 ng ml-1 respectively. The good reproducibility was recorded with RSD% of 3.68. The obtained straight line equation was y = 0.4061 × + 1.03, r = 0.99. For real sample applications, the developed aptasensors were demonstrated in coffee samples. The aptasensor displayed good recovery values in the range 88-89%, thus exhibited the effectiveness of proposed aptasensor for such complex matrices.
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Affiliation(s)
- H Zejli
- Team chemistry applied physic, Faculty of Sciences, 8106 Agadir, Morocco
| | - K Yugender Goud
- Department of Chemistry, National Institute of Technology, Warangal, Telangana 506004, India
| | - Jean Louis Marty
- BAE Laboratory, Université de Perpignan Via Domitia, 52 Avenue Paul Alduy, Perpignan 66860, France
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Huertas-Pérez JF, Arroyo-Manzanares N, García-Campaña AM, Gámiz-Gracia L. Solid phase extraction as sample treatment for the determination of Ochratoxin A in foods: A review. Crit Rev Food Sci Nutr 2018; 57:3405-3420. [PMID: 26744990 DOI: 10.1080/10408398.2015.1126548] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Ochratoxin A (OTA) is a mycotoxin produced by two main types of fungi, Aspergillus and Penicillium species. OTA is a natural contaminant found in a large number of different matrices and is considered as a possible carcinogen for humans. Hence, low maximum permitted levels in foods have been established by competent authorities around the world, making essential the use of very sensitive analytical methods for OTA detection. Sample treatment is a crucial step of analytical methodology to get clean and concentrated extracts, and therefore low limits of quantification. Solid phase extraction (SPE) is a useful technique for rapid and selective sample preparation. This sample treatment enables the concentration and purification of analytes from the sample solution or extract by sorption on a solid sorbent. This review is focused on sample treatment procedures based on SPE prior to the determination of OTA in food matrices, published from 2010.
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Affiliation(s)
- J Fernando Huertas-Pérez
- a Department of Analytical Chemistry, Faculty of Sciences , University of Granada , Campus Fuentenueva s/n, Granada , Spain
| | - Natalia Arroyo-Manzanares
- a Department of Analytical Chemistry, Faculty of Sciences , University of Granada , Campus Fuentenueva s/n, Granada , Spain
| | - Ana M García-Campaña
- a Department of Analytical Chemistry, Faculty of Sciences , University of Granada , Campus Fuentenueva s/n, Granada , Spain
| | - Laura Gámiz-Gracia
- a Department of Analytical Chemistry, Faculty of Sciences , University of Granada , Campus Fuentenueva s/n, Granada , Spain
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Mariño-Repizo L, Gargantini R, Manzano H, Raba J, Cerutti S. Assessment of ochratoxin A occurrence in Argentine red wines using a novel sensitive quechers-solid phase extraction approach prior to ultra high performance liquid chromatography-tandem mass spectrometry methodology. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2017; 97:2487-2497. [PMID: 27701739 DOI: 10.1002/jsfa.8065] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2016] [Revised: 09/12/2016] [Accepted: 09/27/2016] [Indexed: 06/06/2023]
Abstract
BACKGROUND The assessment of ochratoxin A (OTA) in wine is relevant for food safety and its continuous control allows to reduce the risk of intake. Thus, a novel sensitive QuEChERS-SPE (Quick, Easy, Cheap, Effective, Rugged and Safe - Solid Phase Extraction) pretreatment prior to liquid chromatography coupled to tandem mass spectrometry was developed for the determination of OTA in red wine samples from different grape-growing regions in Argentine. RESULTS A sensitive methodology was achieved and thus the limits of detection and quantification were 0.02 and 0.05 µg L-1 , respectively. Recoveries ranged from 89.0% to 105.3%. The method was applied to 136 red wine samples (Argentina's flagship varieties: Malbec and Cabernet Sauvignon) from ten grape-growing regions, during vintages 2013-2015. Although all of the samples investigated were contaminated with OTA (concentrations ranged from 0.02 to 0.98 µg L-1 ), the levels detected were lower than the maximum allowable concentration limit of 2.0 µg L-1 established by international regulations. CONCLUSION The methodology proposed is suitable for reliable OTA analysis in red wines. Similarly, the values obtained from the samples analyzed were in accordance with the current regulations and, as a consequence, preventive actions to reduce this mycotoxin incidence can be undertaken. © 2016 Society of Chemical Industry.
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Affiliation(s)
- Leonardo Mariño-Repizo
- Instituto de Química de San Luis (CONICET-UNSL), Laboratorio de Espectrometría de Masas, Bloque III, Avda. Ejército de los Andes 950, San Luis, Argentina
| | - Raquel Gargantini
- Instituto Nacional de Vitivinicultura (INV), Avda. San Martín 430, Mendoza, Argentina
| | - Humberto Manzano
- Instituto Nacional de Vitivinicultura (INV), Avda. San Martín 430, Mendoza, Argentina
| | - Julio Raba
- Instituto de Química de San Luis (CONICET-UNSL), Laboratorio de Espectrometría de Masas, Bloque III, Avda. Ejército de los Andes 950, San Luis, Argentina
| | - Soledad Cerutti
- Instituto de Química de San Luis (CONICET-UNSL), Laboratorio de Espectrometría de Masas, Bloque III, Avda. Ejército de los Andes 950, San Luis, Argentina
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Imprinting of Microorganisms for Biosensor Applications. SENSORS 2017; 17:s17040708. [PMID: 28353629 PMCID: PMC5421668 DOI: 10.3390/s17040708] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Revised: 03/17/2017] [Accepted: 03/21/2017] [Indexed: 01/01/2023]
Abstract
There is a growing need for selective recognition of microorganisms in complex samples due to the rapidly emerging importance of detecting them in various matrices. Most of the conventional methods used to identify microorganisms are time-consuming, laborious and expensive. In recent years, many efforts have been put forth to develop alternative methods for the detection of microorganisms. These methods include use of various components such as silica nanoparticles, microfluidics, liquid crystals, carbon nanotubes which could be integrated with sensor technology in order to detect microorganisms. In many of these publications antibodies were used as recognition elements by means of specific interactions between the target cell and the binding site of the antibody for the purpose of cell recognition and detection. Even though natural antibodies have high selectivity and sensitivity, they have limited stability and tend to denature in conditions outside the physiological range. Among different approaches, biomimetic materials having superior properties have been used in creating artificial systems. Molecular imprinting is a well suited technique serving the purpose to develop highly selective sensing devices. Molecularly imprinted polymers defined as artificial recognition elements are of growing interest for applications in several sectors of life science involving the investigations on detecting molecules of specific interest. These polymers have attractive properties such as high bio-recognition capability, mechanical and chemical stability, easy preparation and low cost which make them superior over natural recognition reagents. This review summarizes the recent advances in the detection and quantification of microorganisms by emphasizing the molecular imprinting technology and its applications in the development of sensor strategies.
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Raeisossadati MJ, Danesh NM, Borna F, Gholamzad M, Ramezani M, Abnous K, Taghdisi SM. Lateral flow based immunobiosensors for detection of food contaminants. Biosens Bioelectron 2016; 86:235-246. [DOI: 10.1016/j.bios.2016.06.061] [Citation(s) in RCA: 97] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2016] [Revised: 06/19/2016] [Accepted: 06/20/2016] [Indexed: 02/02/2023]
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Malir F, Ostry V, Pfohl-Leszkowicz A, Malir J, Toman J. Ochratoxin A: 50 Years of Research. Toxins (Basel) 2016; 8:E191. [PMID: 27384585 PMCID: PMC4963825 DOI: 10.3390/toxins8070191] [Citation(s) in RCA: 277] [Impact Index Per Article: 34.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Revised: 05/21/2016] [Accepted: 06/13/2016] [Indexed: 12/13/2022] Open
Abstract
Since ochratoxin A (OTA) was discovered, it has been ubiquitous as a natural contaminant of moldy food and feed. The multiple toxic effects of OTA are a real threat for human beings and animal health. For example, OTA can cause porcine nephropathy but can also damage poultries. Humans exposed to OTA can develop (notably by inhalation in the development of acute renal failure within 24 h) a range of chronic disorders such as upper urothelial carcinoma. OTA plays the main role in the pathogenesis of some renal diseases including Balkan endemic nephropathy, kidney tumors occurring in certain endemic regions of the Balkan Peninsula, and chronic interstitial nephropathy occurring in Northern African countries and likely in other parts of the world. OTA leads to DNA adduct formation, which is known for its genotoxicity and carcinogenicity. The present article discusses how renal carcinogenicity and nephrotoxicity cause both oxidative stress and direct genotoxicity. Careful analyses of the data show that OTA carcinogenic effects are due to combined direct and indirect mechanisms (e.g., genotoxicity, oxidative stress, epigenetic factors). Altogether this provides strong evidence that OTA carcinogenicity can also occur in humans.
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Affiliation(s)
- Frantisek Malir
- Department of Biology, Faculty of Science, University of Hradec Kralove, Hradec Kralove 50003, Czech Republic.
| | - Vladimir Ostry
- National Reference Center for Microfungi and Mycotoxins in Food Chains, Center of Health, Nutrition and Food in Brno, National Institute of Public Health in Prague, Brno 61242, Czech Republic.
| | - Annie Pfohl-Leszkowicz
- Department Bioprocess & Microbial Systems, Laboratory Chemical Engineering, INP/ENSA Toulouse, University of Toulouse, UMR 5503 CNRS/INPT/UPS, Auzeville-Tolosane 31320, France.
| | - Jan Malir
- Institute of State and Law, Czech Academy of Sciences, Narodni 18, Prague 11600, Czech Republic.
| | - Jakub Toman
- Department of Biology, Faculty of Science, University of Hradec Kralove, Hradec Kralove 50003, Czech Republic.
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16
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Bazin I, Tria SA, Hayat A, Marty JL. New biorecognition molecules in biosensors for the detection of toxins. Biosens Bioelectron 2016; 87:285-298. [PMID: 27568847 DOI: 10.1016/j.bios.2016.06.083] [Citation(s) in RCA: 105] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Revised: 06/17/2016] [Accepted: 06/28/2016] [Indexed: 12/24/2022]
Abstract
Biological and synthetic recognition elements are at the heart of the majority of modern bioreceptor assays. Traditionally, enzymes and antibodies have been integrated in the biosensor designs as a popular choice for the detection of toxin molecules. But since 1970s, alternative biological and synthetic binders have been emerged as a promising alternative to conventional biorecognition elements in detection systems for laboratory and field-based applications. Recent research has witnessed immense interest in the use of recombinant enzymatic methodologies and nanozymes to circumvent the drawbacks associated with natural enzymes. In the area of antibody production, technologies based on the modification of in vivo synthesized materials and in vitro approaches with development of "display "systems have been introduced in the recent years. Subsequently, molecularly-imprinted polymers and Peptide nucleic acid (PNAs) were developed as an attractive receptor with applications in the area of sample preparation and detection systems. In this article, we discuss all alternatives to conventional biomolecules employed in the detection of various toxin molecules We review recent developments in modified enzymes, nanozymes, nanobodies, aptamers, peptides, protein scaffolds and DNazymes. With the advent of nanostructures and new interface materials, these recognition elements will be major players in future biosensor development.
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Affiliation(s)
- Ingrid Bazin
- École des Mines d'Alès, 6 Avenuede Clavières, 30100 Alès Cedex, France.
| | - Scherrine A Tria
- École des Mines d'Alès, 6 Avenuede Clavières, 30100 Alès Cedex, France
| | - Akhtar Hayat
- BAE (Biocapteurs-Analyses-Environnement), Universite de Perpignan Via Domitia, 52 Avenue Paul Alduy, Perpignan Cedex 66860, France; Interdisciplinary Research Centre in Biomedical Materials (IRCBM), COMSATS Institute of Information Technology (CIIT), Lahore, Pakistan
| | - Jean-Louis Marty
- BAE (Biocapteurs-Analyses-Environnement), Universite de Perpignan Via Domitia, 52 Avenue Paul Alduy, Perpignan Cedex 66860, France
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17
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Ayadi H, Mekhalif T, Salmi Z, Carbonnier B, Djazi F, Chehimi MM. Molecularly imprinted PVC beads for the recognition of proteins. J Appl Polym Sci 2016. [DOI: 10.1002/app.43694] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Hassan Ayadi
- Département de Chimie; Université des Frères Mentouri; Route Ain El-Bey Constantine 25000 Algeria
- Laboratoire de Recherche sur la Physicochimie des Surfaces et Interfaces, Université 20 Août 1955; Skikda 21000 Algeria
| | - Tahar Mekhalif
- Laboratoire de Recherche sur la Physicochimie des Surfaces et Interfaces, Université 20 Août 1955; Skikda 21000 Algeria
| | - Zakaria Salmi
- Univ Paris Diderot, Sorbonne Paris Cité, ITODYS; UMR CNRS 7086, 15 rue J-A de Baïf Paris 75013 France
| | | | - Fayçal Djazi
- Laboratoire de Recherche sur la Physicochimie des Surfaces et Interfaces, Université 20 Août 1955; Skikda 21000 Algeria
| | - Mohamed M. Chehimi
- Univ Paris Diderot, Sorbonne Paris Cité, ITODYS; UMR CNRS 7086, 15 rue J-A de Baïf Paris 75013 France
- Université Paris Est, UMR 7182 CNRS, UPEC; Thiais 94320 France
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18
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Microfabricated biosensor for the simultaneous amperometric and luminescence detection and monitoring of Ochratoxin A. Biosens Bioelectron 2016; 79:835-42. [DOI: 10.1016/j.bios.2016.01.018] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2015] [Revised: 12/10/2015] [Accepted: 01/06/2016] [Indexed: 11/23/2022]
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19
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Turner NW, Bramhmbhatt H, Szabo-Vezse M, Poma A, Coker R, Piletsky SA. Analytical methods for determination of mycotoxins: An update (2009-2014). Anal Chim Acta 2015; 901:12-33. [PMID: 26614054 DOI: 10.1016/j.aca.2015.10.013] [Citation(s) in RCA: 153] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Revised: 09/30/2015] [Accepted: 10/09/2015] [Indexed: 12/25/2022]
Abstract
Mycotoxins are a problematic and toxic group of small organic molecules that are produced as secondary metabolites by several fungal species that colonise crops. They lead to contamination at both the field and postharvest stages of food production with a considerable range of foodstuffs affected, from coffee and cereals, to dried fruit and spices. With wide ranging structural diversity of mycotoxins, severe toxic effects caused by these molecules and their high chemical stability the requirement for robust and effective detection methods is clear. This paper builds on our previous review and summarises the most recent advances in this field, in the years 2009-2014 inclusive. This review summarises traditional methods such as chromatographic and immunochemical techniques, as well as newer approaches such as biosensors, and optical techniques which are becoming more prevalent. A section on sampling and sample treatment has been prepared to highlight the importance of this step in the analytical methods. We close with a look at emerging technologies that will bring effective and rapid analysis out of the laboratory and into the field.
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Affiliation(s)
- Nicholas W Turner
- Department of Life, Health and Chemical Sciences, The Open University, Milton Keynes, MK7 6AA, UK.
| | - Heli Bramhmbhatt
- Department of Life, Health and Chemical Sciences, The Open University, Milton Keynes, MK7 6AA, UK
| | - Monika Szabo-Vezse
- Department of Life, Health and Chemical Sciences, The Open University, Milton Keynes, MK7 6AA, UK; Toximet Ltd., ToxiMet Limited, 130 Abbott Drive, Kent Science Park, Sittingbourne, Kent, ME9 8AZ, UK
| | - Alessandro Poma
- Department of Life, Health and Chemical Sciences, The Open University, Milton Keynes, MK7 6AA, UK; Department of Chemistry, University College London, London, WC1H 0AJ, UK
| | - Raymond Coker
- Toximet Ltd., ToxiMet Limited, 130 Abbott Drive, Kent Science Park, Sittingbourne, Kent, ME9 8AZ, UK
| | - Sergey A Piletsky
- Department of Chemistry, University of Leicester, Leicester, LE1 7RH, UK
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20
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Shao H, Zhao L, Chen J, Zhou H, Huang S, Li K. Preparation, characterization and application of molecularly imprinted monolithic column for hesperetin. J Pharm Biomed Anal 2015; 111:241-7. [DOI: 10.1016/j.jpba.2015.04.006] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2014] [Revised: 04/01/2015] [Accepted: 04/02/2015] [Indexed: 10/23/2022]
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21
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A novel solid phase extraction – Ultra high performance liquid chromatography–tandem mass spectrometry method for the quantification of ochratoxin A in red wines. Food Chem 2015; 172:663-8. [DOI: 10.1016/j.foodchem.2014.09.094] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2013] [Revised: 06/10/2014] [Accepted: 09/10/2014] [Indexed: 11/20/2022]
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22
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Chrzanowska AM, Poliwoda A, Wieczorek PP. Characterization of particle morphology of biochanin A molecularly imprinted polymers and their properties as a potential sorbent for solid-phase extraction. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 49:793-798. [DOI: 10.1016/j.msec.2015.01.069] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2014] [Revised: 12/07/2014] [Accepted: 01/22/2015] [Indexed: 01/06/2023]
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23
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Li Z, Yu Y, Li Z, Wu T. A review of biosensing techniques for detection of trace carcinogen contamination in food products. Anal Bioanal Chem 2015; 407:2711-26. [PMID: 25694149 DOI: 10.1007/s00216-015-8530-8] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2014] [Revised: 01/24/2015] [Accepted: 01/30/2015] [Indexed: 01/04/2023]
Abstract
Carcinogen contaminations in the food chain, for example heavy metal ions, pesticides, acrylamide, and mycotoxins, have caused serious health problems. A major objective of food-safety research is the identification and prevention of exposure to these carcinogens, because of their impossible-to-reverse tumorigenic effects. However, carcinogen detection is difficult because of their trace-level presence in food. Thus, reliable and accurate separation and determination methods are essential to protect food safety and human health. This paper summarizes the state of the art in separation and determination methods for analyzing carcinogen contamination, especially the advances in biosensing methods. Furthermore, the application of promising technology including nanomaterials, imprinted polymers, and microdevices is detailed. Challenges and perspectives are also discussed.
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Affiliation(s)
- Zhanming Li
- Department of Biosystems Engineering, Zhejiang University, Hangzhou, 310058, China
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24
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Whitcombe MJ, Kirsch N, Nicholls IA. Molecular imprinting science and technology: a survey of the literature for the years 2004-2011. J Mol Recognit 2014; 27:297-401. [PMID: 24700625 DOI: 10.1002/jmr.2347] [Citation(s) in RCA: 275] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2013] [Revised: 10/28/2013] [Accepted: 12/01/2013] [Indexed: 12/11/2022]
Abstract
Herein, we present a survey of the literature covering the development of molecular imprinting science and technology over the years 2004-2011. In total, 3779 references to the original papers, reviews, edited volumes and monographs from this period are included, along with recently identified uncited materials from prior to 2004, which were omitted in the first instalment of this series covering the years 1930-2003. In the presentation of the assembled references, a section presenting reviews and monographs covering the area is followed by sections describing fundamental aspects of molecular imprinting including the development of novel polymer formats. Thereafter, literature describing efforts to apply these polymeric materials to a range of application areas is presented. Current trends and areas of rapid development are discussed.
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25
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Zhong QD, Li GH, Wang DB, Shao Y, Li JG, Xiong ZH, Wu YN. Exposure assessment to ochratoxin A in Chinese wine. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2014; 62:8908-8913. [PMID: 25078085 DOI: 10.1021/jf500713x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A rapid, sensitive, reproducible, and inexpensive method of high-performance liquid chromatography with fluorescence detection after an anion-exchange solid-phase extraction cleanup step for the analysis of ochratoxin A (OTA) in Chinese wine was developed. The average recovery rate and the average RSD of recovery were 97.47% and about 4%. The relative standard deviations of both the interday and intraday precision were 6.7 and 12.6%, respectively. The limits of detection and quantitation were determined to be 0.01 and 0.03 μg/L, respectively. A total of 223 samples from the major wine-producing areas of China were analyzed for OTA. OTA was detected at levels of 0.01-0.98 μg/L. The mean was 0.15 μg/L. Then, participants as representative inhabitants were invited to answer the designed questionnaire about the quantity and frequency of wine consumption. All data were simulated by the point evaluation for the risk assessment of OTA contamination from wine. Those results indicated that daily intake (DI) of OTA for the average adult consumer varies between 0.86 and 1.08 ng/kg bw per week, which was lower than all the reference standards. However, the DI value (4.38-5.54 ng/kg bw per week) in the high percentile (97.5) was slightly above 5% PTWI (100 ng kg(-1) week(-1)) of the JECFA. In conclusion, OTA exposure from Chinese wine has no risk of harm. This research will provide the scientific basis for determining the maximum limit of OTA content in Chinese wine.
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Affiliation(s)
- Qi Ding Zhong
- China National Institute of Food and Fermentation Industries, Beijing, China 100015
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26
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A survey of the occurrence of ochratoxin A in Madeira wines based on a modified QuEChERS extraction procedure combined with liquid chromatography–triple quadrupole tandem mass spectrometry. Food Res Int 2013. [DOI: 10.1016/j.foodres.2013.07.020] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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27
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Molecularly imprinted polymer-based solid phase clean-up for analysis of ochratoxin A in ginger and LC-MS/MS confirmation. Food Control 2013. [DOI: 10.1016/j.foodcont.2013.03.023] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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28
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Khlifi A, Gam-Derouich S, Jouini M, Kalfat R, Chehimi MM. Melamine-imprinted polymer grafts through surface photopolymerization initiated by aryl layers from diazonium salts. Food Control 2013. [DOI: 10.1016/j.foodcont.2012.10.013] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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29
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Cao J, Kong W, Zhou S, Yin L, Wan L, Yang M. Molecularly imprinted polymer-based solid phase clean-up for analysis of ochratoxin A in beer, red wine, and grape juice. J Sep Sci 2013; 36:1291-7. [DOI: 10.1002/jssc.201201055] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2012] [Revised: 01/10/2013] [Accepted: 01/11/2013] [Indexed: 11/09/2022]
Affiliation(s)
- Jiliang Cao
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine; Ministry of Education, Institute of Medicinal Plant Development; Chinese Academy of Medical Sciences; Peking Union Medical College; Beijing P. R. China
- School of Pharmacy; Chengdu University of TCM; Chengdu P. R. China
| | - Weijun Kong
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine; Ministry of Education, Institute of Medicinal Plant Development; Chinese Academy of Medical Sciences; Peking Union Medical College; Beijing P. R. China
| | - Shujun Zhou
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine; Ministry of Education, Institute of Medicinal Plant Development; Chinese Academy of Medical Sciences; Peking Union Medical College; Beijing P. R. China
- Jilin Agricultural University; Changchun P. R. China
| | - Lihui Yin
- National Institutes for Food and Drug Control; Beijing P. R. China
| | - Li Wan
- School of Pharmacy; Chengdu University of TCM; Chengdu P. R. China
| | - Meihua Yang
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine; Ministry of Education, Institute of Medicinal Plant Development; Chinese Academy of Medical Sciences; Peking Union Medical College; Beijing P. R. China
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30
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Bazin I, Andreotti N, Hassine AIH, De Waard M, Sabatier J, Gonzalez C. Peptide binding to ochratoxin A mycotoxin: A new approach in conception of biosensors. Biosens Bioelectron 2013; 40:240-6. [DOI: 10.1016/j.bios.2012.07.031] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2012] [Revised: 07/03/2012] [Accepted: 07/18/2012] [Indexed: 10/28/2022]
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31
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Determination of ochratoxin A in wines by capillary liquid chromatography with laser induced fluorescence detection using dispersive liquid–liquid microextraction. Food Chem 2012; 135:368-72. [DOI: 10.1016/j.foodchem.2012.05.009] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2011] [Revised: 04/24/2012] [Accepted: 05/02/2012] [Indexed: 11/22/2022]
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32
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Maouche N, Guergouri M, Gam-Derouich S, Jouini M, Nessark B, Chehimi MM. Molecularly imprinted polypyrrole films: Some key parameters for electrochemical picomolar detection of dopamine. J Electroanal Chem (Lausanne) 2012. [DOI: 10.1016/j.jelechem.2012.08.020] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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33
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Sorption of ochratoxin A from aqueous solutions using β-cyclodextrin-polyurethane polymer. Toxins (Basel) 2012; 4:98-109. [PMID: 22474569 PMCID: PMC3317110 DOI: 10.3390/toxins4020098] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2011] [Revised: 12/14/2011] [Accepted: 01/31/2012] [Indexed: 12/01/2022] Open
Abstract
The ability of a cyclodextrin-polyurethane polymer to remove ochratoxin A from aqueous solutions was examined by batch rebinding assays. The results from the aqueous binding studies were fit to two parameter models to gain insight into the interaction of ochratoxin A with the nanosponge material. The ochratoxin A sorption data fit well to the heterogeneous Freundlich isotherm model. The polymer was less effective at binding ochratoxin A in high pH buffer (9.5) under conditions where ochratoxin A exists predominantly in the dianionic state. Batch rebinding assays in red wine indicate the polymer is able to remove significant levels of ochratoxin A from spiked solutions between 1–10 μg·L−1. These results suggest cyclodextrin nanosponge materials are suitable to reduce levels of ochratoxin A from spiked aqueous solutions and red wine samples.
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34
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Lee TP, Saad B, Khayoon WS, Salleh B. Molecularly imprinted polymer as sorbent in micro-solid phase extraction of ochratoxin A in coffee, grape juice and urine. Talanta 2012; 88:129-35. [DOI: 10.1016/j.talanta.2011.10.021] [Citation(s) in RCA: 83] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2011] [Revised: 10/14/2011] [Accepted: 10/14/2011] [Indexed: 11/16/2022]
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35
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Zhu XY, Zheng ZJ, Xie J, Wang P. Selective separation of magnolol using molecularly imprinted membranes. J Sep Sci 2011; 35:315-9. [DOI: 10.1002/jssc.201100731] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2011] [Revised: 10/25/2011] [Accepted: 10/25/2011] [Indexed: 11/08/2022]
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36
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Comparison of different sample treatments for the analysis of ochratoxin A in wine by capillary HPLC with laser-induced fluorescence detection. Anal Bioanal Chem 2011; 401:2987-94. [DOI: 10.1007/s00216-011-5387-3] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2011] [Revised: 08/31/2011] [Accepted: 08/31/2011] [Indexed: 11/28/2022]
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37
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Shephard G, Berthiller F, Burdaspal P, Crews C, Jonker M, Krska R, MacDonald S, Malone B, Maragos C, Sabino M, Solfrizzo M, van Egmond H, Whitaker T. Developments in mycotoxin analysis: an update for 2009-2010. WORLD MYCOTOXIN J 2011. [DOI: 10.3920/wmj2010.1249] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
This review highlights developments in mycotoxin analysis and sampling over a period between mid-2009 and mid-2010. It covers the major mycotoxins aflatoxins, Alternaria toxins, ergot alkaloids, fumonisins, ochratoxin, patulin, trichothecenes, and zearalenone. New and improved methods for mycotoxins continue to be published. Immunological-based method developments continue to be of wide interest in a broad range of formats. Multimycotoxin determination by LC-MS/MS is now being targeted at the specific ranges of mycotoxins and matrices of interest or concern to the individual laboratory. Although falling outside the main emphasis of the review, some aspects of natural occurrence have been mentioned, especially if linked to novel method developments.
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Affiliation(s)
- G. Shephard
- PROMEC Unit, Medical Research Council, P.O. Box 19070, Tygerberg 7505, South Africa
| | - F. Berthiller
- Department for Agrobiotechnology (IFA-Tulln), University of Natural Resources and Applied Life Sciences Vienna, Center for Analytical Chemistry, Christian Doppler Laboratory for Mycotoxin Research, Konrad Lorenz Str. 20, 3430 Tulln, Austria
| | - P. Burdaspal
- National Centre for Food, Spanish Food Safety and Nutrition Agency, Carretera a Pozuelo Km 5.1, 28220 Majadahonda (Madrid), Spain
| | - C. Crews
- The Food and Environment Research Agency, Sand Hutton, York YO41 1LZ, United Kingdom
| | - M. Jonker
- RIKILT Institute of Food Safety, Cluster Natural Toxins & Pesticides, P.O. Box 230, 6700 AE Wageningen, The Netherlands
| | - R. Krska
- Department for Agrobiotechnology (IFA-Tulln), University of Natural Resources and Applied Life Sciences Vienna, Center for Analytical Chemistry, Christian Doppler Laboratory for Mycotoxin Research, Konrad Lorenz Str. 20, 3430 Tulln, Austria
| | - S. MacDonald
- The Food and Environment Research Agency, Sand Hutton, York YO41 1LZ, United Kingdom
| | - B. Malone
- Trilogy Analytical Laboratory, 870 Vossbrink Drive, Washington, MO 63090, USA
| | - C. Maragos
- USDA, ARS, National Center for Agricultural Utilization Research, 1815 N. University St, Peoria, IL 61604, USA
| | - M. Sabino
- Instituto Adolfo Lutz, Av Dr Arnaldo 355, 01246-902 São Paulo/SP, Brazil
| | - M. Solfrizzo
- Institute of Sciences of Food Production, National Research Council, Via Amendola 122/o, 70126 Bari, Italy
| | - H. van Egmond
- RIKILT Institute of Food Safety, Cluster Natural Toxins & Pesticides, P.O. Box 230, 6700 AE Wageningen, The Netherlands
| | - T. Whitaker
- Biological and Agricultural Engineering Department, N.C. State University, P.O. Box 7625, Raleigh, NC 27695-7625, USA
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