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Zheng Q, Shi C, Xie Y, Yin L, Ji Y. Determination of 90Sr and 210Pb in food samples by liquid scintillation counting after sequential separation with an extraction chromatographic column. Food Chem 2024; 450:139266. [PMID: 38653045 DOI: 10.1016/j.foodchem.2024.139266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 03/23/2024] [Accepted: 04/03/2024] [Indexed: 04/25/2024]
Abstract
90Sr and 210Pb are considered to be key radionuclides in internal exposure resulting from dietary intake, however, the established methods employed for their detection are time-comsuming. A method for the sequential separation of 90Sr and 210Pb using a Sr·spec resin by LSC measurement is developed, which is highly suitable for food safety monitoring as its minimal sample requirements. The sequential separation of Sr and Pb from the sample was using 0.05 mol/L HNO3 and 0.05 mol/L C6H5O7(NH4)3. The chemical recoveries of Sr and Pb measured using ICP-OES were 72-83% and 80-88%, respectively. The minimum detectable activities of 90Sr and 210Pb in the food sample were 36.2 mBq/kg and 28.6 mBq/kg, respectively, obtained from a 0.1 kg fresh sample and 300 min counting time. The method was validated using reference materials and compared with other methods. The feasibility of the developed method for other highly complex food matrices needs further investigation.
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Affiliation(s)
- Qishan Zheng
- China CDC Key Laboratory of Radiological Protection and Nuclear Emergency, National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Beijing 100088, China
| | - Cen Shi
- China CDC Key Laboratory of Radiological Protection and Nuclear Emergency, National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Beijing 100088, China
| | - Yuhan Xie
- China CDC Key Laboratory of Radiological Protection and Nuclear Emergency, National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Beijing 100088, China
| | - Liangliang Yin
- China CDC Key Laboratory of Radiological Protection and Nuclear Emergency, National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Beijing 100088, China
| | - Yanqin Ji
- China CDC Key Laboratory of Radiological Protection and Nuclear Emergency, National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Beijing 100088, China.
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2
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Liu X, Luo Y, Lin T, Xie Z, Qi X. Gold nanoclusters-based fluorescence resonance energy transfer for rapid and sensitive detection of Pb 2. Spectrochim Acta A Mol Biomol Spectrosc 2024; 315:124302. [PMID: 38640623 DOI: 10.1016/j.saa.2024.124302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 04/12/2024] [Accepted: 04/14/2024] [Indexed: 04/21/2024]
Abstract
Lead pollution has remained a significant global concern for several decades due to its detrimental effects on the brain, heart, kidneys, lungs, and immune system across all age groups. Addressing the demand for detecting trace amounts of lead in food samples, we have developed a novel biosensor based on fluorescence resonance energy transfer (FRET) from fluorescein R6G to gold nanoclusters (AuNCs-CCY). By utilizing polypeptides as a template, we successfully synthesized AuNCs-CCY with an excitation spectrum that overlaps with the emission spectrum of R6G. Exploiting the fact that Pb2+ induces the aggregation of gold nanoclusters, leading to the separation of R6G from AuNCs-CCY and subsequent fluorescence recovery, we achieved the quantitative detection of Pb2+. Within the concentration range of 0.002-0.20 μM, a linear relationship was observed between the fluorescence enhancement value (F-F0) and Pb2+ concentration, characterized by the linear equation y = 2398.69x + 87.87 (R2 = 0.996). The limit of detection (LOD) for Pb2+ was determined to be 0.00079 μM (3σ/K). The recovery rate ranged from 96 % to 104 %, with a relative standard deviation (RSD) below 10 %. These findings demonstrate the potential application value of our biosensor, which offers a promising approach to address the urgent need for sensitive detection of heavy metal ions, specifically Pb2+, in food samples.
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Affiliation(s)
- Xuemei Liu
- Faculty of Environment and Life, Beijing University of Technology, No. 100, Pingleyuan, Chaoyang District, Beijing 100124, China.
| | - Yunjing Luo
- Faculty of Environment and Life, Beijing University of Technology, No. 100, Pingleyuan, Chaoyang District, Beijing 100124, China.
| | - Taifeng Lin
- Faculty of Environment and Life, Beijing University of Technology, No. 100, Pingleyuan, Chaoyang District, Beijing 100124, China.
| | - Ziqi Xie
- Faculty of Materials and Manufacture, Beijing University of Technology, No. 100, Pingleyuan, Chaoyang District, Beijing 100124, China.
| | - Xiaohua Qi
- Chinese Academy of Inspection and Quarantine, Beijing 100123, China.
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Yu Q, Mao Y, Bai T, Ye T, Peng Z, Chen K, Guo L, Li L, Wang J. Near-infrared Rhodols-based fluorescent probe with large Stokes shift for tracking of H 2S in food spoilage and living cells. Spectrochim Acta A Mol Biomol Spectrosc 2024; 315:124250. [PMID: 38603958 DOI: 10.1016/j.saa.2024.124250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 03/28/2024] [Accepted: 04/03/2024] [Indexed: 04/13/2024]
Abstract
Hydrogen sulfide (H2S), as a biomarker signaling gas, is not only susceptible to food spoilage, but also plays a key function in many biological processes. In this work, an activated near infrared (NIR) H2S fluorescent probe was designed and synthesized with quinoline-conjugated Rhodols dye as fluorophore skeleton and a dinitrophenyl group as the responsive moiety. Due to the quenching effect of dinitrophenyl group and the closed-loop structure of Rhodols fluorophore, probe itself has a very weak absorption and fluorescence background signal. After the H2S-induced thiolysis reaction, the probe exhibits a remarkable colormetric change and NIR fluorescent enhancement response at 716 nm with large Stokes shift (116 nm), and possesses high sensing selectivity and sensitivity with a low detection limits of 330 nM. The response mechanism is systematically characterized by 1H NMR, MS and DFT calculations. The colorimetric change allows the probe to be used as a test strips to detect H2S in food spoilage, while NIR fluorescent response helps the probe monitor intracellular H2S.
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Affiliation(s)
- Qiangmin Yu
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Yanyun Mao
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Tianwen Bai
- Jiaxing Key Laboratory of Molecular Recognition and Sensing, College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, China.
| | - Tianqing Ye
- Jiaxing Key Laboratory of Molecular Recognition and Sensing, College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, China
| | - Zhengyuan Peng
- Jiaxing Key Laboratory of Molecular Recognition and Sensing, College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, China
| | - Kan Chen
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Longhua Guo
- Jiaxing Key Laboratory of Molecular Recognition and Sensing, College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, China
| | - Lei Li
- Jiaxing Key Laboratory of Molecular Recognition and Sensing, College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, China.
| | - Jianbo Wang
- Jiaxing Key Laboratory of Molecular Recognition and Sensing, College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, China.
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4
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Liu C, Zou Y, Zhang M, Chi C, Zhang D, Wu F, Ding CF. A simple strategy for d/l-carnitine analysis in food samples using ion mobility spectrometry and theoretical calculations. Food Chem 2024; 442:138457. [PMID: 38271903 DOI: 10.1016/j.foodchem.2024.138457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 12/27/2023] [Accepted: 01/14/2024] [Indexed: 01/27/2024]
Abstract
This work presents a straightforward approach to the separation d/l-carnitine (d/l-Carn) using ion mobility-mass spectrometry (IM-MS) and theoretical calculations. Natamycin (Nat) was used as separation reagent to interact with the Carn, metal ions (G) were employed as ligand, the resultant ternary complexes [d/l-Carn + Nat + G]+ were observed experimentally. IM-MS results revealed that d/l-Carn could be baseline separated via complex formation using Li+, Na+, K+, Rb+, and Cs+, with a maximum peak separation resolution (Rp-p) of 2.91; Theoretical calculations were performed to determine the optimal conformations of [d/l-Carn + Nat + Li/K]+, and the predicted collisional cross section values were consistent with the experimental values. Conformational analysis was used to elucidate the enantiomeric separation of d/l-Carn at the molecular level via the formation of ternary complexes. Furthermore, quantitative analyses for the determination of the enantiomers were established with effective linearity and acceptable sensitivity. Finally, the proposed method was successfully applied in the determination of d/l-Carn in food samples.
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Affiliation(s)
- Cong Liu
- Zhejiang Provincial Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis, Institute of Mass Spectrometry, School of Material Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang 315211, China
| | - Ying Zou
- Zhejiang Provincial Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis, Institute of Mass Spectrometry, School of Material Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang 315211, China
| | - Manli Zhang
- Zhejiang Provincial Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis, Institute of Mass Spectrometry, School of Material Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang 315211, China
| | - Chaoxian Chi
- Zhejiang Provincial Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis, Institute of Mass Spectrometry, School of Material Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang 315211, China.
| | - Di Zhang
- Center for Advanced Measurement Science, National Institute of Metrology, Beijing 100084, China
| | - Fangling Wu
- Zhejiang Provincial Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis, Institute of Mass Spectrometry, School of Material Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang 315211, China.
| | - Chuan-Fan Ding
- Zhejiang Provincial Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis, Institute of Mass Spectrometry, School of Material Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang 315211, China
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Bharathi P, Wang SF. Synchronous activation of praseodymium vanadate/graphitic carbon nitride nanocomposite: A promising electrode material for detection of flavonoid- Quercetin. Food Chem 2024; 441:138405. [PMID: 38218142 DOI: 10.1016/j.foodchem.2024.138405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 12/26/2023] [Accepted: 01/07/2024] [Indexed: 01/15/2024]
Abstract
Flavonoids or phenolic compounds are part of the daily intake of every human being. Though they are positive traders for metabolism, excessive intakes bring about detrimental impacts on human health. Herein, the anti-cancer capacitive nature quercetin (Qc) was electrochemically detected through the rare earth metal-based sphere like praseodymium vanadate (PrVO4) entrapped graphitic carbon nitride (g-CN) as electrode modifiers. The nanocomposite was prepared by the one-pot hydrothermal method and characterized by phase compositional and morphology-based techniques. The existing synergistic nature between the PrV@g-CN (praseodymium vanadate@graphitic carbon nitride) makes them have an enhanced electrochemical response towards the Qc than the individual material. The obtained cyclic voltammogram and differential pulse voltammogram profile show one major oxidation peak which is attributed to the conversion of quercetin to quercetin-o-quinone. The PrV@g-CN/GCE (GCE- glassy carbon electrode) shows a good electrochemical active surface area (A = 110 cm2) and linear range between 0.05 and 252.00 μM with a LOD (limit of detection) of 0.002 µM. Moreover, the PrV@g-CN/GCE exhibits good current retention (94.76 %) around 14 days and appreciable repeatability (RSD- 0.5 %) and reproducibility (RSD- 1.3 %) towards the Qc. The real-time implementation of the proposed sensor exhibits a good recovery range towards the black tea (95.00-98.10 %) and green tea (97.80-99.60 %).
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Affiliation(s)
- Pandiyan Bharathi
- Department of Materials and Mineral Resources Engineering, National Taipei University of Technology, Taipei 106, Taiwan
| | - Sea-Fue Wang
- Department of Materials and Mineral Resources Engineering, National Taipei University of Technology, Taipei 106, Taiwan.
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Nakhonchai N, Prompila N, Ponhong K, Siriangkhawut W, Vichapong J, Supharoek SA. Green hairy basil seed mucilage biosorbent for dispersive solid phase extraction enrichment of tetracyclines in bovine milk samples followed by HPLC analysis. Talanta 2024; 271:125645. [PMID: 38219323 DOI: 10.1016/j.talanta.2024.125645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 01/02/2024] [Accepted: 01/06/2024] [Indexed: 01/16/2024]
Abstract
Unmodified hairy basil seed mucilage (Ocimum basilicum L.), with attractive features as structural functionality and adsorption capacity, was employed as a green biosorbent for dispersive solid phase extraction and enrichment of oxytetracycline, tetracycline, and doxycycline before quantitation by HPLC-UV for the first time. Hairy basil crushed seed increased the contacting surface area and was completely dispersed in the sample solution to extract tetracyclines under acidic condition with the assistance of ultrasonic waves. The analytes in the extraction phase were separated on a C18 column under isocratic condition with a mobile phase consisted of acetonitrile and trifluoroacetic acid. Influence of chemical and physical variables on the extraction efficiency of the developed method was investigated and optimized systematically. Under the optimal condition of all experimental parameters, good linear ranges were obtained at 15.0-500 μg L-1 for tetracyclines with determination coefficients more than 0.9994. Limits of detection (LODs) and limits of quantitation (LOQs) ranged 5.0-7.0 and 15.0 μg L-1, respectively. Relative standard deviations (RSDs) of the proposed method at 100 and 300 μg L-1 for TCs were less than 13 % and 10 %, respectively with percentage TC recoveries from spiked standard ranging 83.1-109.9 %. This simple, reliable, cost-effective, and environmentally friendly method was successfully applied for the analysis of tetracycline residues in milk. The greenness of the proposed method was assessed using the Analytical Eco-Scale and AGREE protocol.
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Affiliation(s)
- Nongnapas Nakhonchai
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Mahasarakham University, Maha Sarakham, 44150, Thailand
| | - Nattaya Prompila
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Mahasarakham University, Maha Sarakham, 44150, Thailand
| | - Kraingkrai Ponhong
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Mahasarakham University, Maha Sarakham, 44150, Thailand; Multidisciplinary Research Unit of Pure and Applied Chemistry, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Mahasarakham University, Maha Sarakham, 44150, Thailand
| | - Watsaka Siriangkhawut
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Mahasarakham University, Maha Sarakham, 44150, Thailand
| | - Jitlada Vichapong
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Mahasarakham University, Maha Sarakham, 44150, Thailand; Multidisciplinary Research Unit of Pure and Applied Chemistry, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Mahasarakham University, Maha Sarakham, 44150, Thailand
| | - Sam-Ang Supharoek
- Department of Medical Science, Amnatcharoen Campus, Mahidol University, Amnat Charoen, 3700, Thailand; Department of Chemistry and Center for Innovation in Chemistry, Faculty of Science, Mahidol University, Bangkok, 10400, Thailand.
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7
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Yang Y, Shi Y, Zhang X, Li G. MNAzyme catalyzed signal amplification-mediated lateral flow biosensor for portable and sensitive detection of mycotoxin in food samples. Anal Bioanal Chem 2024; 416:1057-1067. [PMID: 38117324 DOI: 10.1007/s00216-023-05096-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Revised: 12/05/2023] [Accepted: 12/05/2023] [Indexed: 12/21/2023]
Abstract
Here, an enzyme-free lateral flow aptasensor was designed by target-induced strand-displacement effect and followed by the activation of multi-component nucleic acid enzyme (MNAzyme)-mediated cleavage to enable rapid and portable ochratoxin A (OTA) detection. The substrate was prepared as an oligonucleotide strand modified with magnetic beads (MB) and human chorionic gonadotropin (hCG). The interaction of OTA with the aptamer induces the release of blocking DNA, which hybridized with three separated subunits of DNA, forming a sequence-specific MNAzyme catalytic core. This core subsequently initiated an enzyme-free MNAzyme cleavage reaction in the presence of the Mg2+ cofactor, cleaving a special substrate and releasing both the incomplete MNAzyme catalytic core and hCG-DNA probe. The incomplete MNAzyme catalytic core was then recognized by substrates once again, triggering a cascade recycling cleavage and resulting in the generation of a larger number of hCG-DNA probes. After magnetic enrichment, the free hCG-DNA probes flow through the pregnancy test strip (PTS) to the T line, generating a colorimetric readout that unequivocally confirms the presence of the target OTA. This work leverages the efficient enzyme-free cleavage amplification of MNAzyme and the PTS-based portable detection device, presenting a biosensing strategy with significant potential for sensitive and portable OTA detection. This method exhibited remarkable sensitivity and selectivity for OTA detection, boasting a detection limit of 5 nM. The present study successfully demonstrated the practical application of this method on real samples, offering a viable alternative for rapid and portable detection of mycotoxins.
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Affiliation(s)
- Yan Yang
- School of Biological and Pharmaceutical Engineering, Lanzhou Jiao Tong University, Lanzhou, 730070, China
- School of Food and Biological Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, China
| | - Yiheng Shi
- School of Food and Biological Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, China
| | - Xianlong Zhang
- School of Food and Biological Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, China
| | - Guoliang Li
- School of Food and Biological Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, China.
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Tang X, Zhao S, Wu J, He Z, Zhang Y, Huang K, Zou Z, Xiong X. Construction of rose flower-like NiCo-LDH electrode derived from bimetallic MOF for highly sensitive electrochemical sensing of hydrazine in food samples. Food Chem 2023; 427:136648. [PMID: 37399644 DOI: 10.1016/j.foodchem.2023.136648] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Revised: 06/11/2023] [Accepted: 06/14/2023] [Indexed: 07/05/2023]
Abstract
It is necessary to efficient detection hydrazine in food. Exploring highly sensitive, low-cost and fast response electrochemical hydrazine sensing methods has been a challenge in this field. In this paper, a conformal transformation method is used to prepare rose flower-like NiCo-LDH derivating from the bimetallic NiCo-MOFs, and the N2H4 sensing platform with a large electrocatalytic area, high conductivity and good stability was constructed. Based on the synergy between Ni and Co and the remarkable catalytic activity of the rough 3D flower-like structure, the N2H4 sensor has a linear response in the concentration range of 0.001-1 mmol/L and 1-7 mmol/L, with a sensitivity of 5342 μA L mmol-1 cm-2 and 2965 μA L mmol-1 cm-2 (S/N = 3), respectively, and low limit of detection of 0.043 μmol/L. This study opens a new door for the successful application of electrochemical sensors to detect N2H4 in real food samples.
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Affiliation(s)
- Xin Tang
- Key Laboratory of Land Resources Evaluation and Monitoring in Southwest, Ministry of Education, Sichuan Normal University, Chengdu 610068, Sichuan, China; College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, Sichuan, China
| | - Shan Zhao
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, Sichuan, China
| | - Jiaying Wu
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, Sichuan, China
| | - Zhiyuan He
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, Sichuan, China
| | - Yu Zhang
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, Sichuan, China
| | - Ke Huang
- Key Laboratory of Land Resources Evaluation and Monitoring in Southwest, Ministry of Education, Sichuan Normal University, Chengdu 610068, Sichuan, China; College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, Sichuan, China
| | - Zhirong Zou
- Key Laboratory of Land Resources Evaluation and Monitoring in Southwest, Ministry of Education, Sichuan Normal University, Chengdu 610068, Sichuan, China; College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, Sichuan, China.
| | - Xiaoli Xiong
- Key Laboratory of Land Resources Evaluation and Monitoring in Southwest, Ministry of Education, Sichuan Normal University, Chengdu 610068, Sichuan, China; College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, Sichuan, China.
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9
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Tian L, Sun X, Zhou L, Zhong K, Li S, Yan X, Tang L. Reversible colorimetric and NIR fluorescent probe for sensing SO(2)/H(2)O(2) in living cells and food samples. Food Chem 2023; 407:135031. [PMID: 36473352 DOI: 10.1016/j.foodchem.2022.135031] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2022] [Revised: 11/04/2022] [Accepted: 11/20/2022] [Indexed: 11/24/2022]
Abstract
Preservative sulfur dioxide (SO2) and bleach hydrogen peroxide (H2O2) were widely used in the food industry, at the same time, they were also a redox pair in biological systems. Therefore, the reversible sensing SO2/H2O2 was of great significance in food safety and biology. In this paper, a colorimetric and NIR fluorescent dual channels response probe (DCA-Bba) for SO2/H2O2 based on chromene-barbiturate was developed. DCA-Bba exhibited a rapid and sensitive recognition of SO2, and the adduct DCA-Bba-HSO3- could detect H2O2 in PBS (with 10 % DMSO, v/v, pH 7.4) solution. The reversible response of DCA-Bba was implemented by HSO3- involved 1,4-addition and H2O2 induced elimination reaction. DCA-Bba showed a strong red fluorescence based on the intramolecular charge transfer (ICT) process, after the recognition of SO2, the fluorescence of the adduct was quenched based on the photoinduced electron transfer (PET) process. And importantly, DCA-Bba had been applied for imaging SO2/H2O2 redox cycles in living cells, as well as could detect the levels of SO2 in white sugar, biscuit, Chinese liquor and red wine samples.
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Wang S, Mirmiran SD, Li X, Li X, Zhang F, Duan X, Gao D, Chen Y, Chen H, Qian P. Temperate phage influence virulence and biofilm-forming of Salmonella Typhimurium and enhance the ability to contaminate food product. Int J Food Microbiol 2023; 398:110223. [PMID: 37120944 DOI: 10.1016/j.ijfoodmicro.2023.110223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Revised: 04/05/2023] [Accepted: 04/18/2023] [Indexed: 05/02/2023]
Abstract
Salmonella is a food-borne zoonotic pathogen that threatens food safety and public health security. Temperate phages can influence bacterial virulence and phenotype and play an important role in bacterial evolution. However, most studies on Salmonella temperate phages focus on prophage induced by bacteria, with few reports on Salmonella temperate phages isolated in the environment. Moreover, whether temperate phages drive bacterial virulence and biofilm formation in food and animal models remains unknown. In this study, Salmonella temperate phage vB_Sal_PHB48 was isolated from sewage. TEM and phylogenetic analysis indicated that phage PHB48 belongs to the Myoviridae family. Additionally, Salmonella Typhimurium integrating PHB48 was screened and designated as Sal013+. Whole genome sequencing revealed that the integration site was specific and we confirmed that the integration of PHB48 did not change the O-antigen and coding sequences of Sal013. Our in vitro and in vivo studies showed that the integration of PHB48 could significantly enhance the virulence and biofilm formation of S. Typhimurium. More importantly, the integration of PHB48 significantly improved the colonization and contamination ability of bacteria in food samples. In conclusion, we isolated Salmonella temperate phage directly from the environment and systematically clarified that PHB48 enhanced the virulence and biofilm-forming ability of Salmonella. In addition, we found that PHB48 increased the colonization and contamination ability of Salmonella in food samples. These results indicated that the highly pathogenic Salmonella induced by temperate phage was more harmful to food matrices and public health security. Our results could enhance the understanding of the evolutionary relationship between bacteriophages and bacteria, and raise public awareness of large-scale outbreaks resulting from Salmonella virulence enhancement in food industry.
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Affiliation(s)
- Shuang Wang
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, 430070 Wuhan, China; The Cooperative Innovation Centre for Sustainable Pig Production, Huazhong Agricultural University, 430070 Wuhan, China; College of Veterinary Medicine, Huazhong Agricultural University, 430070 Wuhan, China
| | - Seyyed Danial Mirmiran
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, 430070 Wuhan, China; The Cooperative Innovation Centre for Sustainable Pig Production, Huazhong Agricultural University, 430070 Wuhan, China; College of Veterinary Medicine, Huazhong Agricultural University, 430070 Wuhan, China
| | - Xiangmin Li
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, 430070 Wuhan, China; The Cooperative Innovation Centre for Sustainable Pig Production, Huazhong Agricultural University, 430070 Wuhan, China; College of Veterinary Medicine, Huazhong Agricultural University, 430070 Wuhan, China
| | - Xinxin Li
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, 430070 Wuhan, China; The Cooperative Innovation Centre for Sustainable Pig Production, Huazhong Agricultural University, 430070 Wuhan, China; College of Veterinary Medicine, Huazhong Agricultural University, 430070 Wuhan, China
| | - Fenqiang Zhang
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, 430070 Wuhan, China; The Cooperative Innovation Centre for Sustainable Pig Production, Huazhong Agricultural University, 430070 Wuhan, China; College of Veterinary Medicine, Huazhong Agricultural University, 430070 Wuhan, China
| | - Xiaochao Duan
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, 430070 Wuhan, China; The Cooperative Innovation Centre for Sustainable Pig Production, Huazhong Agricultural University, 430070 Wuhan, China; College of Veterinary Medicine, Huazhong Agricultural University, 430070 Wuhan, China
| | - Dongyang Gao
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, 430070 Wuhan, China; The Cooperative Innovation Centre for Sustainable Pig Production, Huazhong Agricultural University, 430070 Wuhan, China; College of Veterinary Medicine, Huazhong Agricultural University, 430070 Wuhan, China
| | - Yibao Chen
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, 430070 Wuhan, China; The Cooperative Innovation Centre for Sustainable Pig Production, Huazhong Agricultural University, 430070 Wuhan, China; College of Veterinary Medicine, Huazhong Agricultural University, 430070 Wuhan, China
| | - Huanchun Chen
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, 430070 Wuhan, China; The Cooperative Innovation Centre for Sustainable Pig Production, Huazhong Agricultural University, 430070 Wuhan, China; College of Veterinary Medicine, Huazhong Agricultural University, 430070 Wuhan, China
| | - Ping Qian
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, 430070 Wuhan, China; The Cooperative Innovation Centre for Sustainable Pig Production, Huazhong Agricultural University, 430070 Wuhan, China; College of Veterinary Medicine, Huazhong Agricultural University, 430070 Wuhan, China.
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11
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Soleh A, Saisahas K, Promsuwan K, Saichanapan J, Thavarungkul P, Kanatharana P, Meng L, Mak WC, Limbut W. A wireless smartphone-based "tap-and-detect" formaldehyde sensor with disposable nano-palladium grafted laser-induced graphene (nanoPd@LIG) electrodes. Talanta 2023; 254:124169. [PMID: 36549140 DOI: 10.1016/j.talanta.2022.124169] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Revised: 11/30/2022] [Accepted: 12/02/2022] [Indexed: 12/13/2022]
Abstract
We developed a fully integrated smart sensing device for on-site testing of food to detect trace formaldehyde (FA). A nano-palladium grafted laser-induced graphene (nanoPd@LIG) composite was synthesized by one-step laser irradiation of a Pd2+-chitosan-polyimide precursor. The composite was synthesized in the form of a three-electrode sensor on a polymer substrate. The electrochemical properties and morphology of the fabricated composite were characterized and the electrochemical kinetics of FA oxidation at the nanoPd@LIG electrode were investigated. The nanoPd@LIG electrode was combined with a smart electrochemical sensing (SES) device to determine FA electrochemically. The proposed SES device uses near field communication (NFC) to receive power and transfer data between a smartphone interface and a battery-free sensor. The proposed FA sensor exhibited a linear detection range from 0.01 to 4.0 mM, a limit of detection of 6.4 μM, good reproducibility (RSDs between 2.0 and 10.1%) and good anti-interference properties for FA detection. The proposed system was used to detect FA in real food samples and the results correlated well with the results from a commercial potentiostat and a spectrophotometric analysis.
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Affiliation(s)
- Asamee Soleh
- Center of Excellence for Trace Analysis and Biosensor, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand; Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand; Division of Physical Science, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand
| | - Kasrin Saisahas
- Division of Health and Applied Sciences, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand; Forensic Science Innovation and Service Center, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand
| | - Kiattisak Promsuwan
- Center of Excellence for Trace Analysis and Biosensor, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand; Division of Health and Applied Sciences, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand; Forensic Science Innovation and Service Center, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand
| | - Jenjira Saichanapan
- Division of Health and Applied Sciences, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand; Forensic Science Innovation and Service Center, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand
| | - Panote Thavarungkul
- Center of Excellence for Trace Analysis and Biosensor, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand; Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand; Division of Physical Science, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand
| | - Proespichaya Kanatharana
- Center of Excellence for Trace Analysis and Biosensor, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand; Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand; Division of Physical Science, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand
| | - Lingyin Meng
- Biosensors and Bioelectronics Centre, Division of Sensor and Actuator Systems, Department of Physics, Chemistry and Biology, Linköping University, SE-581 83, Linköping, Sweden
| | - Wing Cheung Mak
- Biosensors and Bioelectronics Centre, Division of Sensor and Actuator Systems, Department of Physics, Chemistry and Biology, Linköping University, SE-581 83, Linköping, Sweden; Department of Biomedical Engineering, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Warakorn Limbut
- Center of Excellence for Trace Analysis and Biosensor, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand; Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand; Division of Health and Applied Sciences, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand; Forensic Science Innovation and Service Center, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand.
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12
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Siva S, Jin JO, Choi I, Kim M. Nanoliposome based biosensors for probing mycotoxins and their applications for food: A review. Biosens Bioelectron 2023; 219:114845. [PMID: 36327568 DOI: 10.1016/j.bios.2022.114845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 09/28/2022] [Accepted: 10/19/2022] [Indexed: 11/19/2022]
Abstract
Mycotoxins are the most common feed and food contaminants affecting animals and humans, respectively; continuous exposure causes tremendous health problems such as kidney disorders, infertility, immune suppression, liver inflammation, and cancer. Consequently, their control and quantification in food materials is crucial. Biosensors are potential tools for the rapid detection and quantification of mycotoxins with high sensitivity and selectivity. Nanoliposomes (NLs) are vesicular carriers formed by self-assembling phospholipids that surround the aqueous cores. Utilizing their biocompatibility, biodegradability, and high carrying capacity, researchers have employed NLs in biosensors for monitoring various targets in biological and food samples. The NLs are used for surface modification, signal marker delivery, and detection of toxins, bacteria, pesticides, and diseases. Here, we review marker-entrapped NLs used in the development of NL-based biosensors for mycotoxins. These biosensors are sensitive, selective, portable, and cost-effective analytical tools, and the resulting signal can be produced and/or amplified with or without destroying the NLs. In addition, this review emphasizes the benefits of the immunoliposome method in comparison with traditional detection approaches. We expect this review to serve as a valuable reference for researchers in this rapidly growing field. The insights provided may facilitate the rational design of next-generation NL-based biosensors.
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Affiliation(s)
- Subramanian Siva
- Department of Food Science and Technology, Yeungnam University, Gyeongsan, Gyeongsangbuk-do, 38541, Republic of Korea; Research Institute of Cell Culture, Yeungnam University, Gyeongsan, Gyeongsangbuk-do, 38541, Republic of Korea.
| | - Jun-O Jin
- Research Institute of Cell Culture, Yeungnam University, Gyeongsan, Gyeongsangbuk-do, 38541, Republic of Korea; Department of Medical Biotechnology, Yeungnam University, Gyeongsan, Gyeongsangbuk-do, 38541, Republic of Korea.
| | - Inho Choi
- Research Institute of Cell Culture, Yeungnam University, Gyeongsan, Gyeongsangbuk-do, 38541, Republic of Korea; Department of Medical Biotechnology, Yeungnam University, Gyeongsan, Gyeongsangbuk-do, 38541, Republic of Korea.
| | - Myunghee Kim
- Department of Food Science and Technology, Yeungnam University, Gyeongsan, Gyeongsangbuk-do, 38541, Republic of Korea; Research Institute of Cell Culture, Yeungnam University, Gyeongsan, Gyeongsangbuk-do, 38541, Republic of Korea.
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13
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Chen J, Jin Y, Ren T, Wang S, Wang X, Zhang F, Tang Y. A novel terbium (III) and aptamer-based probe for label-free detection of three fluoroquinolones in honey and water samples. Food Chem 2022; 386:132751. [PMID: 35334319 DOI: 10.1016/j.foodchem.2022.132751] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 02/16/2022] [Accepted: 03/16/2022] [Indexed: 11/18/2022]
Abstract
Fluoroquinolones, a family of synthetic broad-spectrum antibiotics, are widely used in clinical medicine, farm animals and aquaculture. Residues of fluoroquinolones in samples have attracted much attention because of growing food safety and public health concerns. Here, a novel Tb3+ ion-enrofloxacin aptamer coordination probe was prepared to develop a sensitive and rapid label-free fluorescence assay for specific detection three fluoroquinolones. In presence of the target, Tb3+ ion- enrofloxacin aptamer probe specifically bound with enrofloxacin, norfloxacin and ciprofloxacin, leading to a sharp increase in fluorescence emission of the probe. Under the optimized conditions, fluorescence increased linearly in the 1.0-100.0 ng/mL range for the three fluoroquinolones, with 0.053 ng/mL limit of detection for ciprofloxacin, 0.020 ng/mL limit of detection for norfloxacin and 0.061 ng/mL limit of detection for enrofloxacin. Satisfactory recovery (80.10-102.48%) in spiked honey and water samples were obtained for the three fluoroquinolones with relative standard deviations between 0.21% and 5.44% (n = 3).
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Affiliation(s)
- Jin'ai Chen
- College of Food Science and Technology, Hebei Agricultural University, Baoding 071001, China; College of Food Science & Project Engineering, Bohai University, Jinzhou 121013, China
| | - Yuting Jin
- College of Food Science and Technology, Hebei Agricultural University, Baoding 071001, China; College of Food Science & Project Engineering, Bohai University, Jinzhou 121013, China
| | - Taotao Ren
- College of Food Science and Technology, Hebei Agricultural University, Baoding 071001, China; College of Food Science & Project Engineering, Bohai University, Jinzhou 121013, China
| | - Shuo Wang
- College of Food Science and Technology, Hebei Agricultural University, Baoding 071001, China; Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin 300071, China
| | - Xianghong Wang
- College of Food Science and Technology, Hebei Agricultural University, Baoding 071001, China
| | - Fuyuan Zhang
- College of Food Science and Technology, Hebei Agricultural University, Baoding 071001, China
| | - Yiwei Tang
- College of Food Science and Technology, Hebei Agricultural University, Baoding 071001, China.
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14
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Farooq S, Wu H, Nie J, Ahmad S, Muhammad I, Zeeshan M, Khan R, Asim M. Application, advancement and green aspects of magnetic molecularly imprinted polymers in pesticide residue detection. Sci Total Environ 2022; 804:150293. [PMID: 34798762 DOI: 10.1016/j.scitotenv.2021.150293] [Citation(s) in RCA: 36] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Revised: 09/01/2021] [Accepted: 09/07/2021] [Indexed: 06/13/2023]
Abstract
Molecularly imprinted polymers (MIPs) have added a vital contribution to food quality and safety with the effective extraction of pesticide residues due to their unique properties. Magnetic molecularly imprinted polymers (MMIPs) are a superior approach to overcome stereotypical limitations due to their unique core-shell and novel composite structure, including high chemothermal stability, rapid extraction, and high selectivity. Over the past two decades, different MMIPs have been developed for pesticide extraction in actual food samples with a complex matrix. Nevertheless, such developments are desirable, yet the synthesis and mode of application of MMIP have great potential as a green chemistry approach that can significantly reduce environmental pollution and minimize resource utilization. In this review, the MMIP application for single or multipesticide detection has been summarized by critiquing each method's uniqueness and efficiency in real sample analysis and providing a possible green chemistry exploration procedure for MMIP synthesis and application for escalated food and environmental safety.
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Affiliation(s)
- Saqib Farooq
- Guangxi Key Laboratory of Agric-Environment and Agric-Products Safety, Agricultural College of Guangxi University, Nanning 530004, PR China
| | - Haiyan Wu
- Guangxi Key Laboratory of Agric-Environment and Agric-Products Safety, Agricultural College of Guangxi University, Nanning 530004, PR China.
| | - Jiyun Nie
- College of Horticulture, Qingdao Agriculture University/Qingdao Key Lab of Modern Agriculture Quality and Safety Engineering, Qingdao 266109, PR China
| | - Shakeel Ahmad
- Guangxi Key Laboratory of Agric-Environment and Agric-Products Safety, Agricultural College of Guangxi University, Nanning 530004, PR China
| | - Ihsan Muhammad
- Guangxi Key Laboratory of Agric-Environment and Agric-Products Safety, Agricultural College of Guangxi University, Nanning 530004, PR China
| | - Muhammad Zeeshan
- Guangxi Key Laboratory of Agric-Environment and Agric-Products Safety, Agricultural College of Guangxi University, Nanning 530004, PR China
| | - Rayyan Khan
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Key Laboratory of Tobacco Biology and Processing, Ministry of Agriculture and Rural Affairs, Qingdao 266101, PR China
| | - Muhammad Asim
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Key Laboratory of Tobacco Biology and Processing, Ministry of Agriculture and Rural Affairs, Qingdao 266101, PR China
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15
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Yan X, Ji Y, Xiao Y, Xue X, Liu J, Li S, Ai F, Zheng X. One-pot label-free dual-aptasensor as a chemiluminescent tool kit simultaneously detect adenosine triphosphate and chloramphenicol in foods. Talanta 2021; 229:122226. [PMID: 33838785 DOI: 10.1016/j.talanta.2021.122226] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 02/07/2021] [Accepted: 02/13/2021] [Indexed: 11/30/2022]
Abstract
The chemiluminescence (CL) analysis based on label-free dual-aptasensor was developed for simultaneous detection of adenosine triphosphate (ATP) and chloramphenicol (CAP) in food. Magnetic microspheres and polystyrene microspheres used as separating and immobilizing carriers which immobilized the two different captured DNA, respectively. Then these carriers were put in the mixture of ATPs, CAPs, ATP-binding aptamers and CAP-binding aptamers to make one-pot label-free recognized interaction. The more ATP or CAP molecules binding their aptamers, the less aptamers left on the surface of carriers reducing the CL signals. The proposed aptasensor exhibited high selectivity and sensitivity for ATP and CAP with the limits of detection of 3.76 × 10-8 moL/L and 2.48 × 10-8 moL/L, respectively. Finally, this method is further validated by measuring the recovery of ATP/CAP spiked in three different food samples.
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Affiliation(s)
- Xiluan Yan
- School of Resources, Environmental, and Chemical Engineering, Nanchang University, Nanchang, 330031, China
| | - Yuanlin Ji
- School of Resources, Environmental, and Chemical Engineering, Nanchang University, Nanchang, 330031, China
| | - Yipi Xiao
- Department of Orthopedics, Hongdu Traditional Chinese Medicine Hospital, Nanchang, 330031, China
| | - Xinxin Xue
- School of Resources, Environmental, and Chemical Engineering, Nanchang University, Nanchang, 330031, China
| | - Jie Liu
- School of Pharmacy, Nanchang University, Nanchang, 330031, China
| | - Su Li
- School of Resources, Environmental, and Chemical Engineering, Nanchang University, Nanchang, 330031, China
| | - Fanrong Ai
- School of Mechanical and Electrical Engineering, Nanchang University, Nanchang, 330031, China
| | - Xiangjuan Zheng
- College of Chemistry, Nanchang University, Nanchang, 330031, China.
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16
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Zhu W, Zhou Y, Liu S, Luo M, Du J, Fan J, Xiong H, Peng H. A novel magnetic fluorescent molecularly imprinted sensor for highly selective and sensitive detection of 4-nitrophenol in food samples through a dual-recognition mechanism. Food Chem 2021; 348:129126. [PMID: 33515947 DOI: 10.1016/j.foodchem.2021.129126] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 01/11/2021] [Accepted: 01/12/2021] [Indexed: 10/22/2022]
Abstract
In this study, surface imprinting, magnetic separation, and fluorescent detection were integrated to develop a dual-recognition sensor (MF-MIPs), which was used for highly selective and sensitive detection of 4-nitrophenol (4-NP) in food samples. Silane-functionalized carbon dots (Si-CDs) participated in the imprinting process and were uniformly distributed into the MIPs layers. MF-MIPs sensor exhibited a high fluorescence response and selectivity based on the dual-recognition mechanism of imprinting recognition and fluorescence identification. The relative fluorescence intensity of MF-MIPs sensor presented a good linear relationship in the range of 0.08-10 μmol·L-1 with a low limit of detection (23.45 nmol·L1) for 4NP. MF-MIPs sensor showed high anti-interference, as well as excellent stability and reusability. The 4-NP recovery from spiked food samples ranged from 93.20 to 102.15%, and the relative standard deviation was lower than 5.0%. Therefore, MF-MIPs sensor may be a promising method for 4-NP detection in food samples.
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Affiliation(s)
- Wenting Zhu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Yushun Zhou
- School of Resources, Environmental, and Chemical Engineering, Nanchang University, Nanchang 330031, China
| | - Shuai Liu
- School of Resources, Environmental, and Chemical Engineering, Nanchang University, Nanchang 330031, China
| | - Mei Luo
- School of Resources, Environmental, and Chemical Engineering, Nanchang University, Nanchang 330031, China
| | - Jun Du
- School of Resources, Environmental, and Chemical Engineering, Nanchang University, Nanchang 330031, China
| | - Jieping Fan
- School of Resources, Environmental, and Chemical Engineering, Nanchang University, Nanchang 330031, China
| | - Hua Xiong
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China.
| | - Hailong Peng
- School of Resources, Environmental, and Chemical Engineering, Nanchang University, Nanchang 330031, China.
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17
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Zhong K, Chen L, Pan Y, Yan X, Hou S, Tang Y, Gao X, Li J, Tang L. A colorimetric and near-infrared fluorescent probe for detection of hydrogen sulfide and its real multiple applications. Spectrochim Acta A Mol Biomol Spectrosc 2019; 221:117135. [PMID: 31158768 DOI: 10.1016/j.saa.2019.117135] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 05/12/2019] [Accepted: 05/14/2019] [Indexed: 06/09/2023]
Abstract
A novel colorimetric and near-infrared fluorescent probe (L) with D-π-A structure derived from 4-diethylaminosalicylaldehyde and 2-(3-cyano-4,5,5-trimethylfuran-2(5H)-ylidene)malononitrile has been developed. Probe L displays highly selective and sensitive recognition for H2S over various anions with a large Stokes shift (96 nm) in DMF/H2O (3/7, v/v, PBS-HCl 10 mM, pH = 7.4). A naked-eye observable color change of L solution from colorless to bluish-purple occurred on treatment with H2S. The potential applications of probe L were evaluated and the results show that probe L can detect H2S vapor and H2S in real water, red wine and living cells.
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Affiliation(s)
- Keli Zhong
- College of Chemistry and Chemical Engineering, Bohai University, Jinzhou 121013, China; College of Food Science and Technology, Bohai University, National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, The Fresh Food Storage and Processing Technology Research Institute of Liaoning Provincial Universities, Jinzhou, 121013, China
| | - Lin Chen
- College of Chemistry and Chemical Engineering, Bohai University, Jinzhou 121013, China
| | - Yongxin Pan
- College of Chemistry and Chemical Engineering, Bohai University, Jinzhou 121013, China
| | - Xiaomei Yan
- College of Laboratory Medicine, Dalian Medical University, Dalian 116044, China
| | - Shuhua Hou
- College of Chemistry and Chemical Engineering, Bohai University, Jinzhou 121013, China
| | - Yiwei Tang
- College of Food Science and Technology, Bohai University, National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, The Fresh Food Storage and Processing Technology Research Institute of Liaoning Provincial Universities, Jinzhou, 121013, China
| | - Xue Gao
- College of Food Science and Technology, Bohai University, National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, The Fresh Food Storage and Processing Technology Research Institute of Liaoning Provincial Universities, Jinzhou, 121013, China
| | - Jianrong Li
- College of Food Science and Technology, Bohai University, National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, The Fresh Food Storage and Processing Technology Research Institute of Liaoning Provincial Universities, Jinzhou, 121013, China.
| | - Lijun Tang
- College of Chemistry and Chemical Engineering, Bohai University, Jinzhou 121013, China.
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Qin X, Geng L, Wang Q, Wang Y. Photoelectrochemical aptasensing of ofloxacin based on the use of a TiO 2 nanotube array co-sensitized with a nanocomposite prepared from polydopamine and Ag 2S nanoparticles. Mikrochim Acta 2019; 186:430. [PMID: 31187249 DOI: 10.1007/s00604-019-3566-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Accepted: 05/28/2019] [Indexed: 01/17/2023]
Abstract
A photoelectrochemical (PEC) method is described for aptamer-based detection of ofloxacin (OFL). It is making use of a TiO2 nanotube array (NTA) that is sensitized with a structure composed of polydopamine and silver sulfide nanoparticles. The NTA were prepared by a two-step synthetic method. First, the TiO2 nanotube electrode was covered with Ag2S nanoparticles via successive ionic layer adsorption and reaction strategy. Next, they were coated with a thin film of polydopamine (PDA) by in-situ polymerization. The inorganic/organic nanocomposites exhibit distinctly enhanced visible-light PEC activity. This was exploited to fabricate a PEC aptasensor. The PDA film serves as both the sensitizer for charge separation and as a support to bind the aptamer against OFL. The aptasensor undergoes a decrease in photocurrent due to the formation of the aptamer-OFL complex. Under the optimized conditions and at a typical working potential of 0 V (vs. Hg/Hg2Cl2), the NTA has a linear response in the 5.0 pM to 100 nM OFL concentration range and a 0.75 pM detection limit (at S/N = 3). The aptasensor was successfully applied to the determination of OFL in spiked milk samples. Graphical abstract Schematic illustration for the preparation and mechanism of the photoelectrochemical aptasensor for ofloxacin. TiO2 NTs: TiO2 nanotube arrays; PDA: polydopamine; MCH: 6-mercapto-1-hexanol; OFL: ofloxacin; PEC: photoelectrochemistry; CB: conduction band; VB: valence band; LUMO: the lowest unoccupied molecular orbital; HOMO: the highest occupied molecular orbital; AA: ascorbic acid.
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19
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Zhou Y, Sui C, Yin H, Wang Y, Wang M, Ai S. Tungsten disulfide (WS 2) nanosheet-based photoelectrochemical aptasensing of chloramphenicol. Mikrochim Acta 2018; 185:453. [PMID: 30209622 DOI: 10.1007/s00604-018-2970-8] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Accepted: 08/18/2018] [Indexed: 01/23/2023]
Abstract
A method is described for photoelectrochemical determination of chloramphenicol (CLOA). It is based on the use of (a) aptamers protected with photoactive WS2 nanosheets, and (b) DNase I-assisted target recycling. The DNA aptamer without label was employed for recognition of CLOA. In the absence of CLOA, the aptamer is adsorbed on the surface of WS2. This leads to a decrease of photocurrent due to the steric-hindrance effect of aptamer DNA. The adsorption of WS2 also protects the aptamer from digestion by DNase. In the presence of CLOA, the aptamer will be desorbed from the WS2 surface due to formation of an aptamer/CLOA conjugate. This results in an increased photocurrent due to a decreased amount of aptamer DNA on the electrode surface. The increase of photocurrent can be further improved by applying DNase triggered catalytic recycling of CLOA. Under optimal experimental conditions, the response is linear 10 pM - 10 nM CLOA concentration range, with a 3.6 pM lower detection limit (at 3σ). This method is acceptably selective, accurate and stable. It was applied to the determination of CLOA in spiked milk samples and gave satisfactory results. Graphical abstract A simple and sensitive photoelectrochemical apta-biosensor was fabricated for chloramphenicol detection. In this work, WS2 nanosheets were employed as photoactive material, and DNase I catalytic chloramphenicol recycling strategy was adopted to amplify the detection signal.
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Affiliation(s)
- Yunlei Zhou
- College of Chemistry and Material Science, Shandong Agricultural University, 271018, Taian, Shandong, People's Republic of China
| | - Chengji Sui
- College of Chemistry and Material Science, Shandong Agricultural University, 271018, Taian, Shandong, People's Republic of China
| | - Huanshun Yin
- College of Chemistry and Material Science, Shandong Agricultural University, 271018, Taian, Shandong, People's Republic of China.
| | - Yue Wang
- College of Chemistry and Material Science, Shandong Agricultural University, 271018, Taian, Shandong, People's Republic of China
| | - Minghui Wang
- College of Chemistry and Material Science, Shandong Agricultural University, 271018, Taian, Shandong, People's Republic of China
| | - Shiyun Ai
- College of Chemistry and Material Science, Shandong Agricultural University, 271018, Taian, Shandong, People's Republic of China
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Guo Z, Niu Q, Li T. Highly sensitive oligothiophene-phenylamine-based dual-functional fluorescence "turn-on" sensor for rapid and simultaneous detection of Al 3+ and Fe 3+ in environment and food samples. Spectrochim Acta A Mol Biomol Spectrosc 2018; 200:76-84. [PMID: 29674242 DOI: 10.1016/j.saa.2018.04.022] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2018] [Revised: 03/31/2018] [Accepted: 04/10/2018] [Indexed: 06/08/2023]
Abstract
Developing low-cost and efficient sensors for rapid, selective and sensitive detection of the transition metal ions in environmental and food science is very important. In this study, a novel dual-functional fluorescent "turn-on" sensor 3TP based on oligothiophene-phenylamine Schiff base has been synthesized for discrimination and simultaneous detection of both Al3+ and Fe3+ ions with high selectivity and anti-interference over other metal ions. Sensor 3TP displayed a very fast fluorescence-enhanced response towards Al3+ and Fe3+ ions with low detection limits (0.177μM for Al3+ and 0.172μM for Fe3+) and wide pH response range (4.0-12.0). The Al3+/Fe3+ sensing mechanisms were investigated by fluorescence experiments, 1H NMR titrations, FT-IR and ESI-MS spectra. Importantly, sensor 3TP was served as an efficient solid material for the highly sensitive and selective detection of Fe3+ on TLC plates. Moreover, the sensor 3TP has been successfully used to detect trace Al3+ and Fe3+ in environment and food samples with satisfactory results and good recoveries, revealing a convenient, reliable and accurate method for Al3+ and Fe3+ analysis in real samples.
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Affiliation(s)
- Zongrang Guo
- Shandong Provincial Key Laboratory of Fine Chemicals, School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, People's Republic of China
| | - Qingfen Niu
- Shandong Provincial Key Laboratory of Fine Chemicals, School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, People's Republic of China.
| | - Tianduo Li
- Shandong Provincial Key Laboratory of Fine Chemicals, School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, People's Republic of China
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Sváb D, Falgenhauer L, Rohde M, Chakraborty T, Tóth I. Identification and characterization of new broad host-range rV5-like coliphages C203 and P206 directed against enterobacteria. Infect Genet Evol 2018; 64:254-261. [PMID: 30033383 DOI: 10.1016/j.meegid.2018.07.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Revised: 06/08/2018] [Accepted: 07/03/2018] [Indexed: 11/18/2022]
Abstract
We isolated and characterized two novel rV5-like lytic bacteriophages from independently collected food samples. Nucleotide sequence analysis revealed that these phages have linear double-stranded DNA genomes comprising 138,073 bp with 213 CDS and 5 tRNA genes. The two genomes contain completely identical nucleotide sequence, albeit there is a 10,718 bp-long shift in the sequence. The GC content of the phage genomes was 43.7% and they showed high general homology to rV5-like phages. The new phages were termed C203 and P206. The genome of both phages contains a unique ORF that encodes for a putative phage homing endonuclease. The phage produced clear plaques with a burst size of approx. 1000 viral particles and a latent period of 60 min. Morphological investigation indicated that the new phages are members of the family Myoviridae with an approximate head length of 85 nm, tail length of 75 nm, and a head width of 96 nm. C203 and P206 exhibit a broad and uniform host range, which included enterohemorrhagic Escherichia coli strains of serogroup O157, multi drug resistant (MDR) E. coli strains of various sero- and pathotypes, and both Shigella sonnei and S. dysenteriae strains. C203 and P206 both effectively reduced the number of living EHEC O157:H7 Sakai in experimentally inoculated minced meat. The same broad host range, the lack of any virulence related genes, the stability and its short latent period suggest that these newly found phages could be suitable candidates as a bio-control agents against food-borne pathogenic Enterobacteria.
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Affiliation(s)
- Domonkos Sváb
- Institute for Veterinary Medical Research, Centre for Agricultural Research, Hungarian Academy of Sciences, Budapest, Hungary.
| | - Linda Falgenhauer
- Institute of Medical Microbiology, Justus Liebig University Giessen, German Center for Infection Research (DZIF), Partner site Giessen-Marburg-Langen, Giessen, Germany
| | - Manfred Rohde
- Central Facility for Microscopy, Helmholtz Centre for Infection Research, HZI, Braunschweig, Germany
| | - Trinad Chakraborty
- Institute of Medical Microbiology, Justus Liebig University Giessen, German Center for Infection Research (DZIF), Partner site Giessen-Marburg-Langen, Giessen, Germany
| | - István Tóth
- Institute for Veterinary Medical Research, Centre for Agricultural Research, Hungarian Academy of Sciences, Budapest, Hungary.
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22
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Sivakumar M, Sakthivel M, Chen SM. Simple synthesis of cobalt sulfide nanorods for efficient electrocatalytic oxidation of vanillin in food samples. J Colloid Interface Sci 2016; 490:719-726. [PMID: 27951514 DOI: 10.1016/j.jcis.2016.11.094] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2016] [Revised: 11/25/2016] [Accepted: 11/25/2016] [Indexed: 10/20/2022]
Abstract
Well-defined CoS nanorods (NR) were synthesized using a simple hydrothermal method, and were tested as an electrode material for electro-oxidation of vanillin. The NR material was characterized with regard to morphology, crystallinity, and electro-activity by use of appropriate analytical techniques. The resulting CoS NR@Nafion modified glassy carbon electrode (GCE) exhibited efficient electro-oxidation of vanillin with a considerable linear range of current-vs-concentration (0.5-56μM vanillin) and a detection limit of 0.07μM. Also, food samples containing vanillin were studied to test suitability for commercial applications.
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Affiliation(s)
- Mani Sivakumar
- Electroanalysis and Bioelectrochemistry Lab, Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei 10608, Taiwan
| | - Mani Sakthivel
- Electroanalysis and Bioelectrochemistry Lab, Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei 10608, Taiwan
| | - Shen-Ming Chen
- Electroanalysis and Bioelectrochemistry Lab, Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei 10608, Taiwan.
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23
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Dalmasso M, Bolocan AS, Hernandez M, Kapetanakou AE, Kuchta T, Manios SG, Melero B, Minarovičová J, Muhterem M, Nicolau AI, Rovira J, Skandamis PN, Stessl B, Wagner M, Jordan K, Rodríguez-Lázaro D. Comparison of polymerase chain reaction methods and plating for analysis of enriched cultures of Listeria monocytogenes when using the ISO11290-1 method. J Microbiol Methods 2013; 98:8-14. [PMID: 24384162 DOI: 10.1016/j.mimet.2013.12.018] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2013] [Revised: 12/18/2013] [Accepted: 12/20/2013] [Indexed: 10/25/2022]
Abstract
Analysis for Listeria monocytogenes by ISO11290-1 is time-consuming, entailing two enrichment steps and subsequent plating on agar plates, taking five days without isolate confirmation. The aim of this study was to determine if a polymerase chain reaction (PCR) assay could be used for analysis of the first and second enrichment broths, saving four or two days, respectively. In a comprehensive approach involving six European laboratories, PCR and traditional plating of both enrichment broths from the ISO11290-1 method were compared for the detection of L. monocytogenes in 872 food, raw material and processing environment samples from 13 different dairy and meat food chains. After the first and second enrichments, total DNA was extracted from the enriched cultures and analysed for the presence of L. monocytogenes DNA by PCR. DNA extraction by chaotropic solid-phase extraction (spin column-based silica) combined with real-time PCR (RTi-PCR) was required as it was shown that crude DNA extraction applying sonication lysis and boiling followed by traditional gel-based PCR resulted in fewer positive results than plating. The RTi-PCR results were compared to plating, as defined by the ISO11290-1 method. For first and second enrichments, 90% of the samples gave the same results by RTi-PCR and plating, whatever the RTi-PCR method used. For the samples that gave different results, plating was significantly more accurate for detection of positive samples than RTi-PCR from the first enrichment, but RTi-PCR detected a greater number of positive samples than plating from the second enrichment, regardless of the RTi-PCR method used. RTi-PCR was more accurate for non-food contact surface and food contact surface samples than for food and raw material samples especially from the first enrichment, probably because of sample matrix interference. Even though RTi-PCR analysis of the first enrichment showed less positive results than plating, in outbreak scenarios where a rapid result is required, RTi-PCR could be an efficient way to get a preliminary result to be then confirmed by plating. Using DNA extraction from the second enrichment broth followed by RTi-PCR was reliable and a confirmed result could be obtained in three days, as against seven days by ISO11290-1.
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Affiliation(s)
- Marion Dalmasso
- Teagasc Food Research Centre, Moorepark, Fermoy, Co. Cork, Ireland
| | - Andrei Sorin Bolocan
- Faculty of Food Science and Engineering, Dunarea de Jos University of Galati, Romania
| | | | | | - Tomáš Kuchta
- Food Research Institute, Priemyselná 4, 824 75 Bratislava, Slovakia
| | - Stavros G Manios
- Agricultural University of Athens, Iera odos 75, 118 55 Athens, Greece
| | | | | | - Meryem Muhterem
- Institute for Milk Hygiene, Milk Technology and Food Science, Department of Veterinary Public Health and Food Science, University of Veterinary Medicine, Vienna, Veterinärplatz 1, 1210 Vienna, Austria
| | - Anca Ioana Nicolau
- Faculty of Food Science and Engineering, Dunarea de Jos University of Galati, Romania
| | | | | | - Beatrix Stessl
- Institute for Milk Hygiene, Milk Technology and Food Science, Department of Veterinary Public Health and Food Science, University of Veterinary Medicine, Vienna, Veterinärplatz 1, 1210 Vienna, Austria
| | - Martin Wagner
- Institute for Milk Hygiene, Milk Technology and Food Science, Department of Veterinary Public Health and Food Science, University of Veterinary Medicine, Vienna, Veterinärplatz 1, 1210 Vienna, Austria
| | - Kieran Jordan
- Teagasc Food Research Centre, Moorepark, Fermoy, Co. Cork, Ireland.
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