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Qin P, Huang D, Xu Z, Guan Y, Bing Y, Yu A. A potential reusable fluorescent aptasensor based on magnetic nanoparticles for ochratoxin A analysis. OPEN CHEM 2019. [DOI: 10.1515/chem-2019-0140] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
AbstractAn aptasensor for the detection of ochratoxin A (OTA) in environmental samples was developed. It displayed high sensitivity and good selectivity. Factors such as specific binding between a FAM (5-carboxyfluorescein)-labeled aptamer (f-RP) and OTA, and a magnetic property of a streptavidin magbeads-modified capture probe (bm-CP) resulted in aptasensor’s linear relationship between fluorescence intensity and the concentration of OTA. This characteristic is present at the OTA concentration ranges from 0.100 μM to 25.00 μM with a LOD (limit of detection) of 0.0690 μM. The bm-CP can be reused through melting, washing and magnetic separation, which contributes to cost reduction. In addition, the proposed method is simple and detection process is fast. The aptasensor can be used in real samples.
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Affiliation(s)
- Pinzhu Qin
- School of Environment and Ecology, Jiangsu Open University, 832 Yingtian Street, Nanjing, Jiangsu, 210019, P.R. China
- Jiangsu Province Key Laboratory of Environmental Engineering, Nanjing, Jiangsu, 210036, P.R. China
| | - Dawei Huang
- South China Institute of Environmental Sciences, Ministry of Ecology and Environment of PRC, Guangzhou, 510655, P.R. China
| | - Zihao Xu
- School of Environment and Ecology, Jiangsu Open University, 832 Yingtian Street, Nanjing, Jiangsu, 210019, P.R. China
| | - Ying Guan
- School of Environment and Ecology, Jiangsu Open University, 832 Yingtian Street, Nanjing, Jiangsu, 210019, P.R. China
- Jiangsu Province Key Laboratory of Environmental Engineering, Nanjing, Jiangsu, 210036, P.R. China
| | - Yongxin Bing
- South China Institute of Environmental Sciences, Ministry of Ecology and Environment of PRC, Guangzhou, 510655, P.R. China
| | - Ang Yu
- Jiangsu Province Key Laboratory of Environmental Engineering, Nanjing, Jiangsu, 210036, P.R. China
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Liu Y, Li W, Ding Z, Li Q, Wang X, Liu J, Zhuo S, Shao R, Ling Q, Zheng T, Li J. Three-dimensional ordered macroporous magnetic photonic crystal microspheres for enrichment and detection of mycotoxins (II): The application in liquid chromatography with fluorescence detector for mycotoxins. J Chromatogr A 2019; 1604:460475. [PMID: 31466701 DOI: 10.1016/j.chroma.2019.460475] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2019] [Revised: 08/18/2019] [Accepted: 08/21/2019] [Indexed: 12/13/2022]
Abstract
Enrichment, separation and purification are very important to accurately analyze mycotoxins in complicated samples. In the work, we developed a new enrichment, purification and high-performance liquid chromatography combined with fluorescence detector (HPLC-FLD) for aflatoxins B1 (AFB1), ochratoxin A (OTA) and Zearalenone (ZEN) assay using the macroporous magnetic 3D photonic crystal microspheres (3DPCMs). The conditions of enrichment and purification for mycotoxins have been optimized, which are as follows: pore size of 3DPCMs at 280 nm, 1:1 methanol:acetonitrile (v/v) as eluent, antibody concentrations at 60 µg/mL,60 µg/mL and 120 µg/mL for OTA, AFB1 and ZEN, respectively. The recovery rates in the rice, wheat and corn samples range from 70.01% to 100.12% and the relative standard deviation (RSD) range from 0.45% to 7.09%. The recovery rates used 3DPCMs are almost tenfold higher than that used non-macroporous PCMs in the same conditions. The developed method is simple, rapid (time including enrichment, purification and detection <2 h) and only requires small volume reagents (≤200 µL).
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Affiliation(s)
- Yan Liu
- School of Food and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210024, China
| | - Wei Li
- Department of Electronic and Electrical Engineering, The University of Sheffield, Sheffield S3 7HQ, United Kingdom
| | - Zhi Ding
- School of Food and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210024, China
| | - Qianjin Li
- School of Food and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210024, China
| | - Xin Wang
- School of Food and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210024, China
| | - Jie Liu
- School of Food and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210024, China
| | - Siqi Zhuo
- School of Food and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210024, China
| | - Rui Shao
- School of Food and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210024, China
| | - Qianqian Ling
- School of Food and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210024, China
| | - Tiesong Zheng
- School of Food and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210024, China
| | - Jianlin Li
- School of Food and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210024, China.
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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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Wang Y, Li P, Zhang Q, Hu X, Zhang W. A toxin-free enzyme-linked immunosorbent assay for the analysis of aflatoxins based on a VHH surrogate standard. Anal Bioanal Chem 2016; 408:6019-26. [DOI: 10.1007/s00216-016-9370-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2015] [Revised: 01/11/2016] [Accepted: 01/27/2016] [Indexed: 01/30/2023]
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Determination of Ochratoxin A in Wheat and Maize by Solid Bar Microextraction with Liquid Chromatography and Fluorescence Detection. Toxins (Basel) 2015; 7:3000-11. [PMID: 26251923 PMCID: PMC4549736 DOI: 10.3390/toxins7083000] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2015] [Revised: 07/26/2015] [Accepted: 07/31/2015] [Indexed: 11/21/2022] Open
Abstract
Solid bar microextraction (SBME), followed by liquid chromatography with fluorescence detection (HPLC-FLD), for the quantification of ochratoxin A in wheat and maize was developed. Ground wheat and maize grains were extracted with acetonitrile-water-acetic acid (79:20:1, v/v/v), followed by defatting with cyclohexane, and subjected to SBME-LC-FLD analysis. SBME devices were constructed by packing 2 mg sorbent (C18) into porous polypropylene micro-tubes (2.5 cm length, 600 μm i.d., and 0.2 μm pore size). SBME devices were conditioned with methanol and placed into 5 mL stirred sample solutions for 70 min. After extraction, OTA was desorbed into 200 μL of methanol for 15 min, the solution was removed in vacuum, the residue was dissolved in 50 μL of methanol-water (1:1, v/v) and ochratoxin A content was determined by HPLC-FLD. Under optimized extraction conditions, the limit of detection of 0.9 μg·kg−1 and 2.5 μg·kg−1 and the precision of 3.4% and 5.0% over a concentration range of 1 to 100 μg·kg−1 in wheat and maize flour, respectively, were obtained.
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In vitro and in vivo metabolism of ochratoxin A: a comparative study using ultra-performance liquid chromatography-quadrupole/time-of-flight hybrid mass spectrometry. Anal Bioanal Chem 2015; 407:3579-89. [DOI: 10.1007/s00216-015-8570-0] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2014] [Revised: 02/04/2015] [Accepted: 02/17/2015] [Indexed: 11/26/2022]
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Xie L, Sheng P, Kong W, Zhao X, Ou-Yang Z, Yang M. Solid-phase extraction using molecularly imprinted polymer for determination of ochratoxin A in human urine. WORLD MYCOTOXIN J 2015. [DOI: 10.3920/wmj2013.1633] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
A rapid, selective and reliable sample preparation technique employing solid-phase extraction (SPE) based on molecularly imprinted polymer (MIP) for the determination of ochratoxin A (OTA) in human urine was described. After sample adjustment to pH 2.5 with 0.1 M HCl, the urine sample was loaded onto the MIP-SPE column, and after a wash step, OTA was eluted for measurement by ultra-high performance liquid chromatography coupled with fluorescence detection. Key parameters which affected the MIP-SPE extraction efficiency were optimized as was the detection method. Under the optimised conditions, the limits of detection and quantification for OTA in urine were 0.2 ng/ml and 0.6 ng/ml, respectively. The recoveries for OTA in urine, spiked at the 0.6, 6.0 and 60 ng/ml levels, ranged from 92.0 to 98.9%. Sixty urine samples were analysed, of which four were found to contain OTA at concentrations ranging from 0.022 to 0.083 ng/ml; the positive results were confirmed by liquid chromatography coupled with tandem mass spectrometry. OTA determination in urine is a good indicator for human exposure to the mycotoxin, and this is the first report on OTA contamination in Chinese people.
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Affiliation(s)
- L. Xie
- Chinese Academy of Medical Sciences, Peking Union Medical College, Institute of Medicinal Plant Development, Malianwa North Road 151, Beijing 100193, China P.R
- School of Pharmacy, Jiangsu University, Zhenjiang 212013, China P.R
| | - P. Sheng
- School of Traditional Chinese Medicine, Xinjiang Medical University, Urumqi 830011, China P.R
| | - W. Kong
- Chinese Academy of Medical Sciences, Peking Union Medical College, Institute of Medicinal Plant Development, Malianwa North Road 151, Beijing 100193, China P.R
| | - X. Zhao
- Chinese Academy of Medical Sciences, Peking Union Medical College, Institute of Medicinal Plant Development, Malianwa North Road 151, Beijing 100193, China P.R
- Chinese Academy of Medicinal Sciences & Peking Union Medical College, Hainan Branch Institute of Medicinal Plant Development, Wanning 571533, China P.R
| | - Z. Ou-Yang
- School of Pharmacy, Jiangsu University, Zhenjiang 212013, China P.R
| | - M. Yang
- Chinese Academy of Medical Sciences, Peking Union Medical College, Institute of Medicinal Plant Development, Malianwa North Road 151, Beijing 100193, China P.R
- Chinese Academy of Medicinal Sciences & Peking Union Medical College, Hainan Branch Institute of Medicinal Plant Development, Wanning 571533, China P.R
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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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Bioactivity fingerprint analysis of cyclooxygenase-2 ligands from radix Aconiti by ultrafiltration–UPLC–MSn. Anal Bioanal Chem 2013; 405:7437-45. [DOI: 10.1007/s00216-013-7153-1] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2013] [Revised: 06/15/2013] [Accepted: 06/17/2013] [Indexed: 01/08/2023]
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Llorent-Martínez E, Ortega-Barrales P, Fernández-de Córdova M, Ruiz-Medina A. Quantitation of ochratoxin a in cereals and feedstuff using sequential injection analysis with luminescence detection. Food Control 2013. [DOI: 10.1016/j.foodcont.2012.07.036] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Shephard G, Berthiller F, Burdaspal P, Crews C, Jonker M, Krska R, MacDonald S, Malone R, Maragos C, Sabino M, Solfrizzo M, Van Egmond H, Whitaker T. Developments in mycotoxin analysis: an update for 2010-2011. WORLD MYCOTOXIN J 2012. [DOI: 10.3920/wmj2011.1338] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.8] [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-2010 and mid-2011. It covers the major mycotoxins: aflatoxins, Alternaria toxins, ergot alkaloids, fumonisins, ochratoxin, patulin, trichothecenes, and zearalenone. Analytical methods for mycotoxins continue to be developed and published. Despite much interest in immunochemical methods and in the rapid development of LC-MS methodology, more conventional methods, sometimes linked to novel clean-up protocols, have also been the subject of research publications over the above period. Occurrence of mycotoxins falls outside the main focus of this review; however, where relevant to analytical method development, this has been mentioned.
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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 Life Sciences Vienna, Center for Analytical Chemistry, Konrad Lorenz Str. 20, 3430 Tulln, Austria
| | - P. Burdaspal
- National Centre for Food, Spanish Food Safety and Nutrition Agency, Ctra. Pozuelo a Majadahonda km 5.100, 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, Wageningen University and Research Centre, Cluster Natural Toxins and Pesticides, P.O. Box 230, 6700 AE Wageningen, the Netherlands
| | - R. Krska
- Department for Agrobiotechnology (IFA-Tulln), University of Natural Resources and Life Sciences Vienna, Center for Analytical Chemistry, Konrad Lorenz Str. 20, 3430 Tulln, Austria
| | - S. MacDonald
- The Food and Environment Research Agency, Sand Hutton, York YO41 1LZ, United Kingdom
| | - R. 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, 700126 Bari, Italy
| | - H. Van Egmond
- RIKILT Institute of Food Safety, Wageningen University and Research Centre, Cluster Natural Toxins and 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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Reiter EV, Cichna-Markl M, Tansakul N, Shim WB, Chung DH, Zentek J, Razzazi-Fazeli E. Sol–gel immunoaffinity chromatography for the clean up of ochratoxin A contaminated grains. J Chromatogr A 2011; 1218:7627-33. [DOI: 10.1016/j.chroma.2011.07.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2011] [Revised: 07/04/2011] [Accepted: 07/08/2011] [Indexed: 11/24/2022]
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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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