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Yildiz M, Demirbilek SK. Investigation of prevalence and antimicrobial resistance of Salmonella in pet dogs and cats in Turkey. Vet Med Sci 2024; 10:e1513. [PMID: 38924270 PMCID: PMC11198019 DOI: 10.1002/vms3.1513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 05/19/2024] [Accepted: 05/31/2024] [Indexed: 06/28/2024] Open
Abstract
BACKGROUND Although salmonellosis is considered to be a foodborne zoonotic disease, pets can play a significant role in the dissemination of antimicrobial-resistant Salmonella organisms to humans because of close contact with their owners. OBJECTIVES To determine the prevalence, risk factors, virulence factors, serotypes, and antimicrobial resistance profile of Salmonella in pet dogs and cats in Turkey and to assess the public health risk. Furthermore, to perform macroscopic comparison of lactic acid bacteria (LAB) in Salmonella-positive and Salmonella-negative animals. METHODS International Standards Organization (ISO) 6579-1:2017 and Food and Drug Administration (FDA) methods were used to compare the effectiveness of culture methods in the identification of Salmonella in 348 rectal swabs. Positive isolates were serotyped using the slide agglutination method according to the White-Kauffmann-Le Minor scheme and the presence of virulence genes (invA and stn) were evaluated by polymerase chain reaction (PCR). Antimicrobial activity was tested by Kirby-Bauer disk diffusion method according to Clinical and Laboratory Standards Institute (CLSI) guidelines. RESULTS Salmonella prevalence was 5.73% (9/157) in dogs and 0.0% (0/191) in cats. Eight (8/9) isolates were cultured with the ISO method and 5 (5/9) isolates were cultured with the FDA method. Macroscopic results revealed that Salmonella agents had no effect on LAB. Three different serotypes were detected and all isolates were positive for virulence genes. Antibiotic resistance profiling indicated that 11.1% of the isolates were MDR and the highest resistance was found for ciprofloxacin. MDR-resistant S. Virchow and carbapenem-resistant S. Enteritidis were detected from dog isolates. There was a significant difference between raw meat consumption and Salmonella carriage (p < 0.01). CONCLUSIONS Dogs could be potential carriers of Salmonella infection. The isolation of Salmonella in healthy dogs instead of dogs suffering from diarrhoea indicates that attention should be paid to asymptomatic carriage. The emergence of resistance among zoonotic Salmonella isolates poses a significant threat to public health.
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Affiliation(s)
- Merve Yildiz
- Faculty of Veterinary MedicineDepartment of MicrobiologyUludag UniversityBursaTurkey
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Shang Y, Wang J, Xia H, Jiao C, Javaid N, Liu X, Li J, Zeng J. A highly sensitive point-of-care detection platform for Salmonella typhimurium by integrating magnetic enrichment and fluorescent CsPbBr 3@SiO 2. Mikrochim Acta 2024; 191:303. [PMID: 38709340 DOI: 10.1007/s00604-024-06361-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Accepted: 04/09/2024] [Indexed: 05/07/2024]
Abstract
A platform was designed based on Fe3O4 and CsPbBr3@SiO2 for integrated magnetic enrichment-fluorescence detection of Salmonella typhimurium, which significantly simplifies the detection process and enhances the working efficiency. Fe3O4 served as a magnetic enrichment unit for the capture of S. typhimurium. CsPbBr3@SiO2 was employed as a fluorescence-sensing unit for quantitative signal output, where SiO2 was introduced to strengthen the stability of CsPbBr3, improve its biomodificability, and prevent lead leakage. More importantly, the SiO2 shell shows neglectable absorption or scattering towards fluorescence, making the CsPbBr3@SiO2 exhibit a high quantum yield of 74.4%. After magnetic enrichment, the decreasing rate of the fluorescence emission intensity of the CsPbBr3@SiO2 supernatant at 527 nm under excitation light at UV 365 nm showed a strong linear correlation with S. typhimurium concentration of 1 × 102~1 × 108 CFU∙mL-1, and the limit of detection (LOD) reached 12.72 CFU∙mL-1. This platform has demonstrated outstanding stability, reproducibility, and resistance to interference, which provides an alternative for convenient and quantitative detection of S. typhimurium.
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Affiliation(s)
- Yanxue Shang
- College of Chemistry and Chemical Engineering, State Key Laboratory of Chemical Safety, China University of Petroleum (East China), Qingdao, 266580, China
| | - Jinling Wang
- College of Chemistry and Chemical Engineering, State Key Laboratory of Chemical Safety, China University of Petroleum (East China), Qingdao, 266580, China
| | - Hongkun Xia
- College of Chemistry and Chemical Engineering, State Key Laboratory of Chemical Safety, China University of Petroleum (East China), Qingdao, 266580, China
| | - Chunpeng Jiao
- College of Chemistry and Chemical Engineering, State Key Laboratory of Chemical Safety, China University of Petroleum (East China), Qingdao, 266580, China
| | - Nafisa Javaid
- Lahore College for Women University, Lahore, Pakistan
| | - Xiangyi Liu
- Department of Laboratory Medicine, Beijing Tongren Hospital, Capital Medical University, Beijing, 100730, China
| | - Jingwen Li
- College of Chemistry and Chemical Engineering, State Key Laboratory of Chemical Safety, China University of Petroleum (East China), Qingdao, 266580, China.
| | - Jingbin Zeng
- College of Chemistry and Chemical Engineering, State Key Laboratory of Chemical Safety, China University of Petroleum (East China), Qingdao, 266580, China.
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Silva GBL, Campos FV, Guimarães MCC, Oliveira JP. Recent Developments in Lateral Flow Assays for Salmonella Detection in Food Products: A Review. Pathogens 2023; 12:1441. [PMID: 38133324 PMCID: PMC10747123 DOI: 10.3390/pathogens12121441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 11/22/2023] [Accepted: 12/11/2023] [Indexed: 12/23/2023] Open
Abstract
Salmonellosis is a disease transmitted by contaminated food and is one of the leading causes of infections worldwide, making the early detection of Salmonella of crucial importance for public health. However, current detection methods are laborious and time-consuming, thus impacting the entire food supply chain and leading to production losses and economic sanctions. To mitigate these issues, a number of different biosensors have been developed, including lateral flow assays (LFAs), which have emerged as valuable tools in pathogen detection due to their portability, ease of use, time efficiency, and cost effectiveness. The performance of LFAs has been considerably enhanced by the development of new nanomaterials over the years. In this review, we address the principles and formats of the assay and discuss future prospects and challenges with an emphasis on LFAs developed for the detection of different Salmonella serovars in food.
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Affiliation(s)
| | | | | | - Jairo P. Oliveira
- Morphology Department, Health Sciences Center, Federal University of Espírito Santo, Av Marechal Campos 1468, Vitória 29040-090, Brazil; (G.B.L.S.); (F.V.C.); (M.C.C.G.)
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Guan Z, Sun Y, Ma CB, Lee JJ, Zhang S, Zhang X, Guo Z, Du Y. Dual targets-induced specific hemin/G-quadruplex assemblies for label-free electrochemical detection capable of distinguishing Salmonella and its common serotype in food samples. Biosens Bioelectron 2023; 236:115438. [PMID: 37263053 DOI: 10.1016/j.bios.2023.115438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 05/12/2023] [Accepted: 05/26/2023] [Indexed: 06/03/2023]
Abstract
Efficient detection of pathogenic bacteria is paramount for ensuring food safety and safeguarding public health. Herein, we developed a label-free and signal-on dual-target recognition electrochemical DNA sensing platform based on the conformational formation of split G-quadruplex. This platform focused on achieving sensitive and low-cost detection of Salmonella and its most human-infecting S. typhimurium serotype. In simple terms, the dual-target recognition probe (DTR-6P) was ingeniously designed for the loop sequence on the loop-mediated isothermal amplification (LAMP) amplicons. It could recognize two different genes and release their corresponding G-rich sequences. The exfoliated G-rich sequences could be captured by the capture probes on the electrode, and then the bimolecular G-quadruplex or the tetramolecular G-quadruplex would be formed to capture hemin, thereby enabling dual-signal reporting. The minimum detection amount of target genes can be as low as 2 copies/μL. Encouragingly, the real food samples contaminated by Salmonella and the S. typhimurium serotype can be readily identified. The sensing platform with ingenious design paves a new way for label-free, multi-target simultaneous detection, whose advantage of rapidity, sensitivity, cost-effectiveness, and specificity also lay a solid foundation for practical applications.
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Affiliation(s)
- Zhaowei Guan
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, Yanbian University, Yanji, Jilin, 133002, China; State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China; Department of Food Science and Engineering, Yanbian University, YanJi, Jilin, 133002, China
| | - Yi Sun
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China; Department of Chemistry, University of Science & Technology of China, Hefei, Anhui, 230026, China
| | - Chong-Bo Ma
- Key Laboratory of Polyoxometalate Science of Ministry of Education, National & Local United Engineering Laboratory for Power Batteries, Key Laboratory of Nanobiosensing and Nanobioanalysis at Universities of Jilin Province, Department of Chemistry, Northeast Normal University, Changchun, Jilin, 130024, China
| | - Jung Joon Lee
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, Yanbian University, Yanji, Jilin, 133002, China
| | - Sicai Zhang
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, Yanbian University, Yanji, Jilin, 133002, China; State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China
| | - Xiaojun Zhang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China
| | - Zhijun Guo
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, Yanbian University, Yanji, Jilin, 133002, China; Department of Food Science and Engineering, Yanbian University, YanJi, Jilin, 133002, China.
| | - Yan Du
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China; Department of Chemistry, University of Science & Technology of China, Hefei, Anhui, 230026, China.
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Kandeel M, Turki Jalil A, hadi Lafta M, Ziyadullaev S, Fakri Mustafa Y. Recent progress in synthesis and applications of MXene-based nanomaterials (MBNs) for (bio)sensing of microbial toxins, pathogenic bacteria in food matrices. Microchem J 2022. [DOI: 10.1016/j.microc.2022.108121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Chin NA, Salihah NT, Shivanand P, Ahmed MU. Recent trends and developments of PCR-based methods for the detection of food-borne Salmonella bacteria and Norovirus. JOURNAL OF FOOD SCIENCE AND TECHNOLOGY 2022; 59:4570-4582. [PMID: 36276542 PMCID: PMC9579247 DOI: 10.1007/s13197-021-05280-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 09/13/2021] [Accepted: 09/15/2021] [Indexed: 05/17/2023]
Abstract
In recent years, rapid detection methods such as polymerase chain reaction (PCR) and quantitative real-time PCR (qPCR) have been continuously developed to improve the detection of food-borne pathogens in food samples. The recent developments of PCR and qPCR in the detection and identification of these food-borne pathogens are described and elaborated throughout this review. Specifically, further developments and improvements of qPCR are discussed in detecting Salmonella and norovirus. Promising advances in these molecular detection methods have been widely used to prevent human food-borne illnesses and death caused by the food-borne pathogens. In addition, this review presents the limitations and challenges of the detection methods which include conventional culture method and conventional PCR method in detecting Salmonella and norovirus. Furthermore, several advances of qPCR such as viability PCR (vPCR) and digital PCR (dPCR) have been discussed in the detection of Salmonella and norovirus. Good practice of analysis of the food-borne pathogens and other contaminants in the food industry as well as the advancement of molecular detection methods will help improve and ensure food safety and food quality.
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Affiliation(s)
- Nur Areena Chin
- Biosensors and Nanobiotechnology Laboratory, Integrated Science Building, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, BE1410 Brunei Darussalam
| | - Nur Thaqifah Salihah
- Universiti Islam Sultan Sharif Ali, Jalan Pasar Baharu, Gadong, BE1310 Brunei Darussalam
| | - Pooja Shivanand
- Environmental and Life Sciences Programme, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, BE1410 Brunei Darussalam
| | - Minhaz Uddin Ahmed
- Biosensors and Nanobiotechnology Laboratory, Integrated Science Building, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, BE1410 Brunei Darussalam
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Abstract
Rapid qualitative and quantitative detection of Salmonella typhimurium (S. typhimurium) takes an important role in ensuring food safety. Herein, a colorimetric assay aptasensor for S. typhimurium utilizing intrinsic peroxidase-like activity of gold nanoparticles embedded spherical covalent organic framework and the affinity and specificity of S. typhimurium-aptamer has been explored. This aptasensor can capture the S. typhimurium via the selective binding effect of aptamer, and the catalytically active sites were shielded. As a result, the colorimetric signals of the 3,3′,5,5′-tetramethylbenzidine-H2O2 system were turned off. Under optimum conditions, the aptasensor gave a linear response over the range of 10 to 107 CFU/mL for S. typhimurium. The detection limit of 7 CFU/mL was obtained within 45 min and was effectively applied to detect S. typhimurium in milk and lake water samples with recoveries in the range from 96.4 to 101.0%. More importantly, combined with a self-developed smartphone-based image analysis system, the proposed aptasensor can be used for point-of-care testing applications.
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Sohrabi H, Majidi MR, Khaki P, Jahanban-Esfahlan A, de la Guardia M, Mokhtarzadeh A. State of the art: Lateral flow assays toward the point-of-care foodborne pathogenic bacteria detection in food samples. Compr Rev Food Sci Food Saf 2022; 21:1868-1912. [PMID: 35194932 DOI: 10.1111/1541-4337.12913] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 12/18/2021] [Accepted: 12/23/2021] [Indexed: 12/24/2022]
Abstract
Diverse chemicals and some physical phenomena recently introduced in nanotechnology have enabled scientists to develop useful devices in the field of food sciences. Concerning such developments, detecting foodborne pathogenic bacteria is now an important issue. These kinds of bacteria species have demonstrated severe health effects after consuming foods and high mortality related to acute cases. The most leading path of intoxication and infection has been through food matrices. Hence, quick recognition of foodborne bacteria agents at low concentrations has been required in current diagnostics. Lateral flow assays (LFAs) are one of the urgent and prevalently applied quick recognition methods that have been settled for recognizing diverse types of analytes. Thus, the present review has stressed on latest developments in LFAs-based platforms to detect various foodborne pathogenic bacteria such as Salmonella, Listeria, Escherichia coli, Brucella, Shigella, Staphylococcus aureus, Clostridium botulinum, and Vibrio cholera. Proper prominence has been given on exactly how the labels, detection elements, or procedures have affected recent developments in the evaluation of diverse bacteria using LFAs. Additionally, the modifications in assays specificity and sensitivity consistent with applied food processing techniques have been discussed. Finally, a conclusion has been drawn for highlighting the main challenges confronted through this method and offered a view and insight of thoughts for its further development in the future.
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Affiliation(s)
- Hessamaddin Sohrabi
- Department of Analytical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
| | - Mir Reza Majidi
- Department of Analytical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
| | - Pegah Khaki
- Department of Analytical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
| | - Ali Jahanban-Esfahlan
- Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Biology, Faculty of Fundamental Sciences, University College of Nabi Akram (UCNA), Tabriz, Iran
| | | | - Ahad Mokhtarzadeh
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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Sohrabi H, Majidi MR, Fakhraei M, Jahanban-Esfahlan A, Hejazi M, Oroojalian F, Baradaran B, Tohidast M, Guardia MDL, Mokhtarzadeh A. Lateral flow assays (LFA) for detection of pathogenic bacteria: A small point-of-care platform for diagnosis of human infectious diseases. Talanta 2022; 243:123330. [DOI: 10.1016/j.talanta.2022.123330] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 02/17/2022] [Accepted: 02/19/2022] [Indexed: 12/31/2022]
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10
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Saeed MA, Syed EH, Ghafor A, Yaqub T, Javeed A, Waheed U. Evaluation of Analytical Sensitivity of Sdf I based PCR and Sandwich ELISA for Salmonella Enteritidis detection and On-Farm prevalence in Punjab, Pakistan. BRAZILIAN JOURNAL OF POULTRY SCIENCE 2022. [DOI: 10.1590/1806-9061-2021-1492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- MA Saeed
- University of Veterinary and Animal Sciences, Pakistan
| | - EH Syed
- University of Veterinary and Animal Sciences, Pakistan
| | - A Ghafor
- University of Veterinary and Animal Sciences, Pakistan
| | - T Yaqub
- University of Veterinary and Animal Sciences, Pakistan
| | - A Javeed
- University of Veterinary and Animal Sciences, Pakistan
| | - U Waheed
- University of Veterinary and Animal Sciences, Pakistan
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Nikiema MEM, Kakou-Ngazoa S, Ky/Ba A, Sylla A, Bako E, Addablah AYA, Ouoba JB, Sampo E, Gnada K, Zongo O, Traoré KA, Sanou A, Bonkoungou IJO, Ouédraogo R, Barro N, Sangaré L. Characterization of virulence factors of Salmonella isolated from human stools and street food in urban areas of Burkina Faso. BMC Microbiol 2021; 21:338. [PMID: 34895140 PMCID: PMC8665542 DOI: 10.1186/s12866-021-02398-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Accepted: 11/24/2021] [Indexed: 01/19/2023] Open
Abstract
Background This study was undertaken to identify and functionally characterize virulence genes from Salmonella isolates in street food and stool cultures. From February 2017 to May 2018, clinical and food Salmonella strains were isolated in three regions in Burkina Faso. Salmonella was serotyped according to the White-Kauffmann-Le Minor method, and polymerase chain reaction (PCR) was used to detec invA, spvR, spvC, fimA and stn virulence genes commonly associated with salmonellosis in Sub-Saharan Africa. Results A total of 106 Salmonella isolates (77 human stools; 14 sandwiches) was analyzed using a serological identification with an O-group test reagent. The presence of Salmonella was confirmed in 86% (91/106) of the samples were reactive (OMA-positive/OMB-positive). Salmonella serogroup O:4,5 was the most common serogroup detected (40%; 36/91). Salmonella Enteritidis and Typhimurium represented 5.5% (5/91) and 3.3% (3/91), respectively and were identified only from clinical isolates. Furthermore, 14 serotypes of Salmonella (12/91 human strains and 2/15 sandwich strains) were evocative of Kentucky/Bargny serotype. For the genetic profile, 66% (70/106) of the Salmonella had invA and stn genes; 77.4% (82/106) had the fimA gene. The spvR gene was found in 36.8% (39/106) of the isolates while 48.1% (51/106) had the spvC gene. Among the identified Salmonella Enteritidis and Salmonella Typhimurium isolated from stools, the virulence genes detected were invA (3/5) versus (2/3), fimA (4/5) versus (3/3), stn (3/5) versus (2/3), spvR (4/5) versus (2/3) and spvC (3/5) versus (2/3), respectively. Conclusion This study reports the prevalence of Salmonella serotypes and virulence genes in clinical isolates and in street foods. It shows that food could be a significant source of Salmonella transmission to humans. Our results could help decision-making by the Burkina Faso health authority in the fight against street food-related diseases, in particular by training restaurateurs in food hygiene.
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Affiliation(s)
- Marguerite E M Nikiema
- Laboratoire de Biologie Moléculaire d'Epidémiologie et de Surveillance des Bactéries et Virus Transmis par les Aliments (LaBESTA). Ecole Doctorale Sciences et Technologies, Université Joseph Ki-Zerbo, 03 BP 7021, Ouagadougou, 03, Burkina Faso. .,Plateforme de Biologie Moléculaire, Institut Pasteur de Côte d'Ivoire, Abidjan, Côte d'Ivoire. .,Service de Bactériologie-Virologie, CHU-Yalgado OUEDRAOGO, 03 BP 7022, Ouagadougou, Burkina Faso.
| | - Solange Kakou-Ngazoa
- Plateforme de Biologie Moléculaire, Institut Pasteur de Côte d'Ivoire, Abidjan, Côte d'Ivoire
| | - Absatou Ky/Ba
- Laboratoire de Bactériologie-Virologie, CHU-Bogodogo, Ouagadougou, Burkina Faso
| | - Aboubacar Sylla
- Plateforme de Biologie Moléculaire, Institut Pasteur de Côte d'Ivoire, Abidjan, Côte d'Ivoire
| | - Evariste Bako
- Laboratoire de Biologie Moléculaire d'Epidémiologie et de Surveillance des Bactéries et Virus Transmis par les Aliments (LaBESTA). Ecole Doctorale Sciences et Technologies, Université Joseph Ki-Zerbo, 03 BP 7021, Ouagadougou, 03, Burkina Faso
| | | | - Jean Bienvenue Ouoba
- Laboratoire de Biologie Moléculaire d'Epidémiologie et de Surveillance des Bactéries et Virus Transmis par les Aliments (LaBESTA). Ecole Doctorale Sciences et Technologies, Université Joseph Ki-Zerbo, 03 BP 7021, Ouagadougou, 03, Burkina Faso
| | - Emmanuel Sampo
- Laboratoire de Biologie Moléculaire d'Epidémiologie et de Surveillance des Bactéries et Virus Transmis par les Aliments (LaBESTA). Ecole Doctorale Sciences et Technologies, Université Joseph Ki-Zerbo, 03 BP 7021, Ouagadougou, 03, Burkina Faso.,Hôpital Protestant Schiphra, 07 BP 5246, Ouagadougou, 07, Burkina Faso
| | - Kobo Gnada
- Centre MURAZ, Bobo-Dioulasso, Burkina Faso
| | - Oumarou Zongo
- Laboratoire de Biochimie et Immunologie Appliquées (LABIA), Université Joseph Ki-Zerbo, 03 BP 7021, Ouagadougou, 03, Burkina Faso
| | - Kuan Abdoulaye Traoré
- Laboratoire de Biologie Moléculaire d'Epidémiologie et de Surveillance des Bactéries et Virus Transmis par les Aliments (LaBESTA). Ecole Doctorale Sciences et Technologies, Université Joseph Ki-Zerbo, 03 BP 7021, Ouagadougou, 03, Burkina Faso
| | - Adama Sanou
- Centre MURAZ, Bobo-Dioulasso, Burkina Faso.,Université Nazi Boni, 01 BP 1091, Bobo-Dioulasso, 01, Burkina Faso
| | - Isidore Juste Ouindgueta Bonkoungou
- Laboratoire de Biologie Moléculaire d'Epidémiologie et de Surveillance des Bactéries et Virus Transmis par les Aliments (LaBESTA). Ecole Doctorale Sciences et Technologies, Université Joseph Ki-Zerbo, 03 BP 7021, Ouagadougou, 03, Burkina Faso
| | - Rasmata Ouédraogo
- Laboratoire de Bactériologie-Virologie, CHU-Pédiatrie Charles De Gaulle, 01 BP 1198 BP, Ouagadougou, 01, Burkina Faso
| | - Nicolas Barro
- Laboratoire de Biologie Moléculaire d'Epidémiologie et de Surveillance des Bactéries et Virus Transmis par les Aliments (LaBESTA). Ecole Doctorale Sciences et Technologies, Université Joseph Ki-Zerbo, 03 BP 7021, Ouagadougou, 03, Burkina Faso
| | - Lassana Sangaré
- Service de Bactériologie-Virologie, CHU-Yalgado OUEDRAOGO, 03 BP 7022, Ouagadougou, Burkina Faso
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Zhang Z, Lou Y, Guo C, Jia Q, Song Y, Tian JY, Zhang S, Wang M, He L, Du M. Metal–organic frameworks (MOFs) based chemosensors/biosensors for analysis of food contaminants. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.10.024] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Advancement in Salmonella Detection Methods: From Conventional to Electrochemical-Based Sensing Detection. BIOSENSORS-BASEL 2021; 11:bios11090346. [PMID: 34562936 PMCID: PMC8468554 DOI: 10.3390/bios11090346] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 09/06/2021] [Accepted: 09/09/2021] [Indexed: 02/07/2023]
Abstract
Large-scale food-borne outbreaks caused by Salmonella are rarely seen nowadays, thanks to the advanced nature of the medical system. However, small, localised outbreaks in certain regions still exist and could possess a huge threat to the public health if eradication measure is not initiated. This review discusses the progress of Salmonella detection approaches covering their basic principles, characteristics, applications, and performances. Conventional Salmonella detection is usually performed using a culture-based method, which is time-consuming, labour intensive, and unsuitable for on-site testing and high-throughput analysis. To date, there are many detection methods with a unique detection system available for Salmonella detection utilising immunological-based techniques, molecular-based techniques, mass spectrometry, spectroscopy, optical phenotyping, and biosensor methods. The electrochemical biosensor has growing interest in Salmonella detection mainly due to its excellent sensitivity, rapidity, and portability. The use of a highly specific bioreceptor, such as aptamers, and the application of nanomaterials are contributing factors to these excellent characteristics. Furthermore, insight on the types of biorecognition elements, the principles of electrochemical transduction elements, and the miniaturisation potential of electrochemical biosensors are discussed.
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Impedimetric Biosensor Based on a Hechtia argentea Lectin for the Detection of Salmonella spp. CHEMOSENSORS 2020. [DOI: 10.3390/chemosensors8040115] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A sensitive electrochemical detection method for Salmonella spp. was described, based on the use of Hechtia argentea lectin immobilised on a screen-printed gold electrode. The lectin was extracted from Hechtia argentea, a plant belonging to the Bromeliaceae family. The lectin with molecular weight near 27.4 kDa showed selectivity towards D-mannose, contained on the lipopolysaccharide cell wall of Salmonella spp. Carbohydrate selectivity of the lectin was measured as a change in impedance with respect to concentration. The binding of the bacteria to the biosensor surface increased impedance with increasing concentrations of Salmonella spp., achieving a linear range of detection of 15–2.57 × 107 CFU mL−1, with a limit of detection of 5 CFU mL−1. Increases in impedance were measured using electrochemical impedance spectroscopy and analysed using Nyquist plots. The biosensor was applied in analysis of hen egg samples, and the results were consistent with those obtained using the official analysis methodology.
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Ma Z, Kang M, Meng S, Tong Z, Yoon SD, Jang Y, Jeong KC. Selective Killing of Shiga Toxin-Producing Escherichia coli with Antibody-Conjugated Chitosan Nanoparticles in the Gastrointestinal Tract. ACS APPLIED MATERIALS & INTERFACES 2020; 12:18332-18341. [PMID: 32239905 DOI: 10.1021/acsami.0c02177] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Shiga toxin-producing Escherichia coli (STEC) are critical foodborne pathogens, which cause serious human health issues, including hemolytic uremic syndrome. Illnesses caused by STEC lack effective treatments that target the elimination of these bacteria from the gastrointestinal tract without causing an adverse effect. Reducing this pathogen from a reservoir of STEC is an effective strategy, but the challenges remain due to the lack of efficient, selective antimicrobial agents. We developed specific antibody-conjugated chitosan nanoparticles (CNs) to selectively target and treat STEC in the gastrointestinal tract. Given the great broad-spectrum antimicrobial activity of CN, we conjugated antibodies to CN. Antibodies were raised and purified from egg yolks after immunization of hens with seven different O-side-chain antigens isolated from STEC (O26, O45, O103, O111, O121, O145, and O157). We prepared CN-immunoglobulin Y (IgY) conjugates by forming amide bonds at different ratios of CN:IgY (10:1, 10:2, and 10:4). The CN-IgY conjugated at a 10:2 ratio demonstrated significantly enhanced antimicrobial activity against E. coli O157:H7. Conjugates of CN and anti-STEC IgY antibodies killed corresponding STEC serotypes specifically and selectively, while showing no significant impact on nontargeted bacteria, including Salmonella enterica and Lactobacillus plantarum. The enhanced antimicrobial activity of CN-IgY against STEC was also confirmed in synthetic intestinal fluid, as well as an in vivo animal model of Caenorhabditis elegans. These results suggest that the CN-IgY conjugates have strong and specific antimicrobial activity and that they are also great candidates to eliminate pathogens selectively in the gastrointestinal tract without inhibiting beneficial bacteria.
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Affiliation(s)
- Zhengxin Ma
- Emerging Pathogens Institute, University of Florida, 2055 Mowry Road, Gainesville, Florida 32611, United States
- Department of Animal Sciences, University of Florida, Gainesville, Florida 32611, United States
| | - Minyoung Kang
- Emerging Pathogens Institute, University of Florida, 2055 Mowry Road, Gainesville, Florida 32611, United States
- Department of Animal Sciences, University of Florida, Gainesville, Florida 32611, United States
| | - Shanyu Meng
- Department of Agricultural and Biological Engineering, University of Florida, Gainesville, Florida 32611, United States
| | - Zhaohui Tong
- Department of Agricultural and Biological Engineering, University of Florida, Gainesville, Florida 32611, United States
| | - Soon-Do Yoon
- Department of Chemical and Biomolecular Engineering, Chonnam National University, Yeosu, Jeonnam 59626, Republic of Korea
| | - Yeongseon Jang
- Department of Chemical Engineering, University of Florida, Gainesville, Florida 32611, United States
| | - K Casey Jeong
- Emerging Pathogens Institute, University of Florida, 2055 Mowry Road, Gainesville, Florida 32611, United States
- Department of Animal Sciences, University of Florida, Gainesville, Florida 32611, United States
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Murasova P, Kovarova A, Kasparova J, Brozkova I, Hamiot A, Pekarkova J, Dupuy B, Drbohlavova J, Bilkova Z, Korecka L. Direct culture-free electrochemical detection of cells in milk based on quantum dots-modified nanostructured dendrons. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.114051] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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17
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Martínez-Pérez P, Hyndman TH, Fleming PA. Salmonella in Free-Ranging Quokkas ( Setonix brachyurus) from Rottnest Island and the Mainland of Western Australia. Animals (Basel) 2020; 10:E585. [PMID: 32244325 PMCID: PMC7222713 DOI: 10.3390/ani10040585] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2020] [Revised: 03/26/2020] [Accepted: 03/28/2020] [Indexed: 01/02/2023] Open
Abstract
Salmonella is a genus of Gram-negative, motile, and facultative anaerobic bacteria with a worldwide distribution that contaminates multiple substrates (vegetation, food, soil, and water) and inhabits the gastrointestinal tract of birds, reptiles, and mammals, including humans. Rottnest Island is a popular tourist destination and is abundantly inhabited by quokkas (Setonix brachyurus), a charismatic small wallaby. Current data on the association between Salmonella and quokkas on Rottnest Island are outdated by approximately 30 years. Additionally, previous studies on quokkas on this island and mainland Western Australia did not perform physical examinations or any diagnostic tests. The aim of the project was to assess the prevalence of Salmonella spp. in quokkas from Rottnest Island and mainland Western Australia and correlate the presence of the bacterium with the health of the animal. Ninety-two quokkas from Rottnest Island (n = 71) and populations on the mainland (n = 21) were screened for Salmonella, and a prevalence of 47.9% and 4.8%, respectively, was determined. A total of 16 serovars were identified from 37 isolates; five of these serovars had previously not been described in the quokka. Salmonella appeared to have an effect on the haematology and blood chemistry of quokkas on Rottnest Island consistent with subclinical salmonellosis. The health of Rottnest Island quokkas, and their potential impact on the health of the visitors to the island, should continue to be monitored carefully.
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Affiliation(s)
| | - Timothy H. Hyndman
- College of Science, Health, Engineering and Education of Murdoch University, Murdoch, Western Australia 6150, Australia; (P.M.-P.); (P.A.F.)
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Azevedo-Nogueira F, Gomes S, Carvalho T, Martins-Lopes P. Development of high-throughput real-time PCR assays for the Colletotrichum acutatum detection on infected olive fruits and olive oils. Food Chem 2020; 317:126417. [PMID: 32088403 DOI: 10.1016/j.foodchem.2020.126417] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Revised: 11/21/2019] [Accepted: 02/14/2020] [Indexed: 12/31/2022]
Abstract
The detection of latent Colletotrichum spp infection in olive drupes is crucial, to avoid contamination in the olive oil production chain. In order to detect the presence of C. acutatum in complex olive matrices a real-time PCR assay was developed, using olive drupe and oil samples from C. acutatum susceptible and tolerant olive cultivars (Galega Vulgar, Cobrançosa and Picual) with different infection levels. A C. acutatum specific sequence, belonging to the Internal Transcribed Spacers region, was used to design the real-time PCR detection assay, resulting in an 490 bp amplicon with a consistent melting temperature (Tm = 87.8 °C). The assay allowed a rapid and high-sensitive C. acutatum detection mean, being able to detect the infection in a latent phase, for the first time, in olive drupes, 16 hai, and in olive oils containing 20% of infected olives. This novel method can be used to monitor C. acutatum presence in olive orchards.
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Affiliation(s)
- Filipe Azevedo-Nogueira
- BioISI - Biosystems & Integrative Sciences Institute, Faculty of Sciences, University of Lisboa, Portugal; University of Trás-os-Montes and Alto Douro, School of Life Science and Environment, Department of Genetics and Biotechnology, Vila Real, Portugal
| | - Sónia Gomes
- BioISI - Biosystems & Integrative Sciences Institute, Faculty of Sciences, University of Lisboa, Portugal; University of Trás-os-Montes and Alto Douro, School of Life Science and Environment, Department of Genetics and Biotechnology, Vila Real, Portugal.
| | - Teresa Carvalho
- National Institute for Agricultural and Veterinary Research (INIAV), P.O. Box 6, 7350-951 Elvas, Portugal.
| | - Paula Martins-Lopes
- BioISI - Biosystems & Integrative Sciences Institute, Faculty of Sciences, University of Lisboa, Portugal; University of Trás-os-Montes and Alto Douro, School of Life Science and Environment, Department of Genetics and Biotechnology, Vila Real, Portugal.
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Lin L, Zheng Q, Lin J, Yuk HG, Guo L. Immuno- and nucleic acid-based current technique for Salmonella detection in food. Eur Food Res Technol 2020. [DOI: 10.1007/s00217-019-03423-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Bacteriophages as Potential Tools for Detection and Control of Salmonella spp. in Food Systems. Microorganisms 2019; 7:microorganisms7110570. [PMID: 31744260 PMCID: PMC6920764 DOI: 10.3390/microorganisms7110570] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Revised: 11/14/2019] [Accepted: 11/15/2019] [Indexed: 01/21/2023] Open
Abstract
The global problem of antibiotic resistance in bacteria is quickly developing in most antibiotics used in hospitals and livestock. Recently, the infections with multi-drug resistant (MDR) bacteria become a major cause of death worldwide. Current antibiotics are not very effective in treating MDR Salmonella infections, which have become a public health threat. Therefore, novel approaches are needed to rapidly detect and effectively control antibiotic-resistant pathogens. Bacteriophages (phages) have seen renewed attention for satisfying those requirements due to their host-specific properties. Therefore, this review aims to discuss the possibility of using phages as a detection tool for recognizing bacterial cell surface receptors and an alternative approach for controlling antibiotic-resistant pathogens in food systems.
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Bhandari D, Chen FC, Bridgman RC. Detection of Salmonella Typhimurium in Romaine Lettuce Using a Surface Plasmon Resonance Biosensor. BIOSENSORS 2019; 9:E94. [PMID: 31357708 PMCID: PMC6784360 DOI: 10.3390/bios9030094] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Revised: 07/17/2019] [Accepted: 07/22/2019] [Indexed: 12/05/2022]
Abstract
Leafy vegetables have been associated with high-profile outbreaks causing severe illnesses. Timely and accurate identification of potential contamination is essential to ensure food safety. A surface plasmon resonance (SPR) assay has been developed for the detection of Salmonella Typhimurium in leafy vegetables. The assay utilizes a pair of well characterized monoclonal antibodies specific to the flagellin of S. Typhimurium. Samples of romaine lettuce contaminated with S. Typhimurium at different levels (between 0.9 and 5.9 log cfu/g) were pre-enriched in buffered peptone water. Three SPR assay formats, direct assay, sequential two-step sandwich assay, and pre-incubation one-step sandwich assay were evaluated. All three assay formats detect well even at a low level of contamination (0.9 log cfu/g). The SPR assay showed a high specificity for the detection of S. Typhimurium in the presence of other commensal bacteria in the romaine lettuce samples. The results also suggested that further purification of flagellin from the sample preparation using immunomagnetic separation did not improve the detection sensitivity of the SPR assay. The functional protocol developed in this study can be readily used for the detection of S. Typhimurium in leafy vegetables with high sensitivity and specificity.
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Affiliation(s)
- Devendra Bhandari
- Department of Agricultural and Environmental Sciences, Tennessee State University, Nashville, TN 37209, USA
| | - Fur-Chi Chen
- Department of Human Sciences, Tennessee State University, Nashville, TN 37209, USA.
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Beshiru A, Igbinosa IH, Igbinosa EO. Prevalence of Antimicrobial Resistance and Virulence Gene Elements of Salmonella Serovars From Ready-to-Eat (RTE) Shrimps. Front Microbiol 2019; 10:1613. [PMID: 31354693 PMCID: PMC6637730 DOI: 10.3389/fmicb.2019.01613] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Accepted: 06/28/2019] [Indexed: 01/02/2023] Open
Abstract
Gastrointestinal illnesses continue to be a global public health risk. Exposure to foodborne Salmonella directly or indirectly through consumption of ready-to-eat seafood can be an important route of infection to humans. This study was designed to estimate the population cell density, prevalence, virulence gene signatures, and antibiotic resistance of Salmonella serovars from ready-to-eat shrimps. Ready-to-eat (RTE) shrimp samples were obtained from different open markets in Delta and Edo States, Nigeria from November 2016 to October 2017. We employed classical and polymerase chain reaction (PCR) approaches. The mean Salmonella species enumerated from the RTE shrimps ranged from -0.301 to 5.434 log10 cfu/g with 210/1440 (14.58%) of the RTE shrimp samples harbored Salmonella species. After biochemical and PCR approach, the identified isolates were Salmonella Enteritidis 11(24.4%), Salmonella Typhimurium 14 (31.1%) and other Salmonella spp. 20 (44.4%). All Salmonella species recovered were resistant to penicillin and erythromycin with 100% sensitivity to cefotaxime, cephalothin, colistin, and polymyxin B. Findings on the multidrug-resistant (MDR) profile showed that a total of 9/14 (64.3%) of Salmonella Enteritidis were resistant to 5 antibiotics which belongs to 3 different groups of antimicrobials with a multiple antibiotic-resistant (MAR) index of 0.21; while 3/11 (27.3%) of Salmonella Typhimurium were resistant to 11 antibiotics which belongs to 7 different groups of antimicrobials with a MAR index of 0.46. Virulence genes (spiA, sipB, invA, sif A, fljB, and sefA) and resistance genes (class 1 and II integrase, sul2, catB3, flor, tmp, bla TEM, strB, dfr1, and tetC) were also detected in some of the Salmonella species with variable percentage. This study indicates that ready-to-eat shrimps are probable reservoirs harboring Salmonella strains. The identified Salmonella isolates which exhibited virulence determinants and antibiotic-resistant coupled with high MAR index constitute a consumer health risk to the communities.
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Affiliation(s)
- Abeni Beshiru
- Applied Microbial Processes and Environmental Health Research Group, Department of Microbiology, Faculty of Life Sciences, University of Benin, Benin City, Nigeria
| | - Isoken H. Igbinosa
- Department of Environmental Management and Toxicology, Faculty of Life Sciences, University of Benin, Benin City, Nigeria
| | - Etinosa O. Igbinosa
- Applied Microbial Processes and Environmental Health Research Group, Department of Microbiology, Faculty of Life Sciences, University of Benin, Benin City, Nigeria
- Sustainable Development Office, University of Benin, Benin City, Nigeria
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Verification and large scale clinical evaluation of a national standard protocol for Salmonella spp ./Shigella spp. screening using real-time PCR combined with guided culture. J Microbiol Methods 2018; 145:14-19. [DOI: 10.1016/j.mimet.2017.12.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Revised: 12/12/2017] [Accepted: 12/17/2017] [Indexed: 11/17/2022]
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Bai S, Gan C, Cai G, Wang L, Chen M, Han Q, Lin J. Online Detection of Peroxidase Using 3D Printing, Active Magnetic Mixing, and Spectra Analysis. BIOMED RESEARCH INTERNATIONAL 2017; 2017:5031809. [PMID: 28523275 PMCID: PMC5421100 DOI: 10.1155/2017/5031809] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/13/2016] [Revised: 02/16/2017] [Accepted: 04/03/2017] [Indexed: 11/17/2022]
Abstract
A new method for online detection of peroxidase (POD) using 3D printing, active magnetic mixing, fluidic control, and optical detection was developed and demonstrated in this study. The proposed POD detection system consisted of a 3D printing and active magnetic mixing based fluidic chip for online catalytic reaction, an optical detector with a fluidic flow cell for quantitative determination of the final catalysate, and a single-chip microcontroller based controller for automatic control of two rotating magnetic fields and four precise peristaltic pumps. Horseradish peroxidase (HRP) was used as research model and a linear relationship between the absorbance at the characteristic wavelength of 450 nm and the concentration of HRP of 1/4-1/128 μg mL-1 was obtained as A = 0.257ln(C) + 1.425 (R2 = 0.976). For the HRP spiked pork tests, the recoveries of HRP ranged from 93.5% to 110.4%, indicating that this proposed system was capable of detecting HRP in real samples. It has the potential to be extended for online detection of the activity of other enzymes and integration with ELISA method for biological and chemical analysis.
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Affiliation(s)
- Shanshan Bai
- Key Laboratory of Agricultural Information Acquisition Technology (Beijing), Ministry of Agriculture, China Agricultural University, Beijing, China
| | - Chengqi Gan
- Key Laboratory of Agricultural Information Acquisition Technology (Beijing), Ministry of Agriculture, China Agricultural University, Beijing, China
| | - Gaozhe Cai
- Key Laboratory of Agricultural Information Acquisition Technology (Beijing), Ministry of Agriculture, China Agricultural University, Beijing, China
| | - Lei Wang
- Key Laboratory of Agricultural Information Acquisition Technology (Beijing), Ministry of Agriculture, China Agricultural University, Beijing, China
| | - Mingyong Chen
- College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Qingan Han
- Hebei Animal Disease Control Center, Shijiazhuang, China
| | - Jianhan Lin
- Modern Precision Agriculture System Integration Research Key Laboratory of Ministry of Education, China Agricultural University, Beijing, China
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25
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Exploratory review on safety of edible raw fish per the hazard factors and their detection methods. Trends Food Sci Technol 2017. [DOI: 10.1016/j.tifs.2016.11.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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26
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Mutreja R, Jariyal M, Pathania P, Sharma A, Sahoo D, Suri CR. Novel surface antigen based impedimetric immunosensor for detection of Salmonella typhimurium in water and juice samples. Biosens Bioelectron 2016; 85:707-713. [DOI: 10.1016/j.bios.2016.05.079] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Revised: 05/05/2016] [Accepted: 05/23/2016] [Indexed: 11/27/2022]
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Is it safe to eat raw seafood? Prevalence of Salmonella in some seafood products sold in Alexandria markets. J Egypt Public Health Assoc 2016; 88:115-20. [PMID: 23963092 DOI: 10.1097/01.epx.0000433559.22563.47] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Salmonella is a significant microbial hazard in seafood. Salmonella-contaminated seafood usually looks and smells normal; it is therefore essential that every effort is made toward the rapid detection of Salmonella as an important criterion in quality control of seafood. AIMS This study aims to determine the percentage of Salmonella in some Egyptian seafood sold in Alexandria markets and to study the validity of Chromagar Salmonella Plus (CASP) agar versus xylose lysine desoxycholate and Salmonella-Shigella agar for the isolation and identification of Salmonella in seafood. MATERIALS AND METHODS Two hundred and twenty-five samples of three seafood types, shrimp, gandofli, and river mussel (om-elkhloul) were studied. Samples were selectively enriched in Rappaport-Vassiliadis and tetrathionate broth, and then plated onto the aforementioned plating media for the detection of Salmonella. RESULTS In total, Salmonella was detected in 9.8% of the samples. The sensitivity and specificity of the media used varied according to the media and enrichment broth combinations used. The CASP and Rappaport-Vassiliadis combination yielded the best sensitivity, specificity, positive predictive value, negative predictive value, and accuracy of 95.45, 100, 100, 99.5, and 99.5%, respectively. CONCLUSION AND RECOMMENDATION CASP was more accurate than xylose lysine desoxycholate and Salmonella-Shigella in the detection of Salmonella from seafood samples. We recommend that CASP medium should be tested against more Salmonella-positive samples before it is used as a screening plating medium for Salmonella in seafood.
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Jepsen ML, Harmsen C, Godbole AA, Nagaraja V, Knudsen BR, Ho YP. Specific detection of the cleavage activity of mycobacterial enzymes using a quantum dot based DNA nanosensor. NANOSCALE 2016; 8:358-364. [PMID: 26616006 DOI: 10.1039/c5nr06326d] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We present a quantum dot based DNA nanosensor specifically targeting the cleavage step in the reaction cycle of the essential DNA-modifying enzyme, mycobacterial topoisomerase I. The design takes advantages of the unique photophysical properties of quantum dots to generate visible fluorescence recovery upon specific cleavage by mycobacterial topoisomerase I. This report, for the first time, demonstrates the possibility to quantify the cleavage activity of the mycobacterial enzyme without the pre-processing sample purification or post-processing signal amplification. The cleavage induced signal response has also proven reliable in biological matrices, such as whole cell extracts prepared from Escherichia coli and human Caco-2 cells. It is expected that the assay may contribute to the clinical diagnostics of bacterial diseases, as well as the evaluation of treatment outcomes.
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Affiliation(s)
- Morten Leth Jepsen
- Interdisciplinary Nanoscience Center (iNANO), Aarhus University, Aarhus 8000 C, Denmark. and Department of Molecular Biology and Genetics, Aarhus University, Aarhus 8000 C, Denmark
| | - Charlotte Harmsen
- Department of Molecular Biology and Genetics, Aarhus University, Aarhus 8000 C, Denmark
| | - Adwait Anand Godbole
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bangalore 560 012, India
| | - Valakunja Nagaraja
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bangalore 560 012, India
| | - Birgitta R Knudsen
- Interdisciplinary Nanoscience Center (iNANO), Aarhus University, Aarhus 8000 C, Denmark. and Department of Molecular Biology and Genetics, Aarhus University, Aarhus 8000 C, Denmark
| | - Yi-Ping Ho
- Interdisciplinary Nanoscience Center (iNANO), Aarhus University, Aarhus 8000 C, Denmark. and Department of Molecular Biology and Genetics, Aarhus University, Aarhus 8000 C, Denmark
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Noor Uddin GM, Larsen MH, Barco L, Minh Phu T, Dalsgaard A. Clonal Occurrence of Salmonella Weltevreden in Cultured Shrimp in the Mekong Delta, Vietnam. PLoS One 2015. [PMID: 26222547 PMCID: PMC4519254 DOI: 10.1371/journal.pone.0134252] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
This study investigated the occurrence, serovar and antimicrobial resistance of Salmonella spp. in shrimp samples from intensive and extensive farms located in three different provinces in the Mekong Delta, Vietnam. Shrimp from 11 of the 48 farms all contained S. Weltevreden, except for one farm yielding S. Agona, with no difference in Salmonella occurrence between the two production systems. Pulsed field gel electrophoresis (PFGE) of S. Weltevreden showed closely related XbaI pulse types, suggesting a clonal relationship despite the farms and shrimp samples being epidemiologically unrelated. S. Weltevreden was susceptible to most antimicrobials tested, with a few strains being resistant to florfenicol, chloramphenicol, sulfamethoxazole or trimethoprim. Future studies of the ecology of S. Weltevreden should establish if this serovar may survive better and even multiply in warm-water shrimp farm environments compared to other Salmonella serovars.
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Affiliation(s)
- Gazi Md. Noor Uddin
- Department of Veterinary Disease Biology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Marianne Halberg Larsen
- Department of Veterinary Disease Biology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Lisa Barco
- World Organization for Animal Health (OIE), National Reference Laboratory for Salmonella, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro (Padua), Italy
| | - Tran Minh Phu
- College of Aquaculture & Fisheries, Can Tho University, Can Tho City, Vietnam
| | - Anders Dalsgaard
- Department of Veterinary Disease Biology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
- * E-mail:
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Guo PL, Tang M, Hong SL, Yu X, Pang DW, Zhang ZL. Combination of dynamic magnetophoretic separation and stationary magnetic trap for highly sensitive and selective detection of Salmonella typhimurium in complex matrix. Biosens Bioelectron 2015. [PMID: 26201979 DOI: 10.1016/j.bios.2015.07.019] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Foodborne illnesses have always been a serious problem that threats public health, so it is necessary to develop a method that can detect the pathogens rapidly and sensitively. In this study, we designed a magnetic controlled microfluidic device which integrated the dynamic magnetophoretic separation and stationary magnetic trap together for sensitive and selective detection of Salmonella typhimurium (S. typhimurium). Coupled with immunomagnetic nanospheres (IMNs), this device could separate and enrich the target pathogens and realize the sensitive detection of target pathogens on chip. Based on the principle of sandwich immunoassays, the trapped target pathogens identified by streptavidin modified QDs (SA-QDs) were detected under an inverted fluorescence microscopy. A linear range was exhibited at the concentration from 1.0×10(4) to 1.0×10(6) colony-forming units/mL (CFU/mL), the limit of detection (LOD) was as low as 5.4×10(3) CFU/mL in milk (considering the sample volume, the absolute detection limit corresponded to 540C FU). Compared with the device with stationary magnetic trap alone, the integrated device enhanced anti-interference ability and increased detection sensitivity through dynamic magnetophoretic separation, and made the detection in complex samples more accurate. In addition, it had excellent specificity and good reproducibility. The developed system provides a rapid, sensitive and accurate approach to detect pathogens in practice samples.
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Affiliation(s)
- Pei-Lin Guo
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, PR China
| | - Man Tang
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, PR China
| | - Shao-Li Hong
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, PR China
| | - Xu Yu
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, PR China
| | - Dai-Wen Pang
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, PR China
| | - Zhi-Ling Zhang
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, PR China.
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31
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Mangal M, Bansal S, Sharma SK, Gupta RK. Molecular Detection of Foodborne Pathogens: A Rapid and Accurate Answer to Food Safety. Crit Rev Food Sci Nutr 2015; 56:1568-84. [DOI: 10.1080/10408398.2013.782483] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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32
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Amani J, Mirhosseini SA, Imani Fooladi AA. A review approaches to identify enteric bacterial pathogens. Jundishapur J Microbiol 2015; 8:e17473. [PMID: 25793091 PMCID: PMC4353029 DOI: 10.5812/jjm.17473] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2014] [Revised: 03/10/2014] [Accepted: 04/05/2014] [Indexed: 12/15/2022] Open
Abstract
CONTEXT Diarrhea is a common disease across the world. According to WHO, every year about two billion cases of diarrhea are reported in the world. It occurs mainly in the tropical regions and is a main cause of morbidity and mortality, particularly in young children and adults. EVIDENCE ACQUISITION One of the major causes of diarrheal diseases is bacteria; detection of pathogenic bacteria is a global key to the prevention and identification of food-borne diseases and enteric infections (like diarrhea). CONCLUSIONS Therefore, development of rapid diagnostic methods with suitable sensitivity and specificity is very important about this infectious disease. In this review, we will discuss some of the important diagnostic methods.
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Affiliation(s)
- Jafar Amani
- Applied Microbiology Research Center, Baqiyatallah University of Medical Sciences, Tehran, IR Iran
| | - Seyed Ali Mirhosseini
- Applied Microbiology Research Center, Baqiyatallah University of Medical Sciences, Tehran, IR Iran
| | - Abbas Ali Imani Fooladi
- Applied Microbiology Research Center, Baqiyatallah University of Medical Sciences, Tehran, IR Iran
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Lomakina GY, Istrate A, Rudenko NV, Ugarova NN. Synthesis and application of firefly luciferase antibody conjugates in a bioluminescent immunoassay of Salmonella cells. ACTA ACUST UNITED AC 2014. [DOI: 10.3103/s0027131414020047] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Fang Z, Wu W, Lu X, Zeng L. Lateral flow biosensor for DNA extraction-free detection of Salmonella based on aptamer mediated strand displacement amplification. Biosens Bioelectron 2014; 56:192-7. [PMID: 24491961 DOI: 10.1016/j.bios.2014.01.015] [Citation(s) in RCA: 117] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2013] [Accepted: 01/07/2014] [Indexed: 02/07/2023]
Abstract
Convenient and sensitive point-of-care rapid diagnostic tests for food-borne pathogens have been a long-felt need of clinicians. Traditional approaches such as culture-based methods have good sensitivity and specificity, but they tend to be tedious and time-consuming. Herein we present a simple and sensitive aptamer based biosensor for rapid detection of Salmonella enteritidis (S. enteritidis). One of the aptamers specific for the outmembrane of S. enteritidis was used for magnetic bead enrichments. Another aptamer against S. enteritidis was used as a reporter for this pathogen, which was amplified by isothermal strand displacement amplification (SDA) and further detected by a lateral flow biosensor. As low as 10(1) colony forming unit (CFU) of S. enteritidis was detected in this study. Without DNA extraction, the reduced handling and simpler equipment requirement render this assay a simple and rapid alternative to conventional methods.
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Affiliation(s)
- Zhiyuan Fang
- Key Laboratory of Regenerative Biology, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
| | - Wei Wu
- Key Laboratory of Regenerative Biology, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
| | - Xuewen Lu
- Key Laboratory of Regenerative Biology, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
| | - Lingwen Zeng
- Key Laboratory of Regenerative Biology, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China.
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Virpari PK, Nayak JB, Thaker HC, Brahmbhatt MN. Isolation of pathogenic Escherichia coli from stool samples of diarrhoeal patients with history of raw milk consumption. Vet World 2013. [DOI: 10.14202/vetworld.2013.659-663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Chattopadhyay S, Kaur A, Jain S, Singh H. Sensitive detection of food-borne pathogen Salmonella by modified PAN fibers-immunoassay. Biosens Bioelectron 2013; 45:274-80. [PMID: 23500375 DOI: 10.1016/j.bios.2013.01.032] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2013] [Accepted: 01/17/2013] [Indexed: 10/27/2022]
Abstract
Sensitive and rapid detection of Salmonella is a key to the prevention and identification of problems associated with human health and safety. Enzyme Linked Immunosorbent Assays (ELISAs) are popular and widely implemented technique to detect pathogenic bacteria in routine analysis but a typical ELISA yields a sensitivity of 10(6)-10(7)cfu/mL. The present study consecrates on the applicability of surface modified polyacrylonitrile (PAN) fibers as a novel matrix of immunoassay for the detection of Salmonella typhimurium in a sandwich ELISA format. Affinity purified antibody against Salmonella common structural antigen (CSA-1-Ab) was immobilized on modified PAN (mPAN) fibers using covalent immobilization via amine-glutaraldehyde chemistry and inactivated S. typhimurium were captured from various samples and detected colorimetrically using peroxidase-labelled common structural antibody (CSA-1-Ab-HRP) against Salmonella. The performance of the developed immunoassay was compared with commercially available immunomagnetic microbeads (Dynabeads(®) anti-Salmonella), polystyrene (PS) microtitre plate and glutaraldehyde activated PS plate. Limit of detection (LOD) was found to be 10, 10(5), 10(6) and 10(7)cells/mL of bacteria for mPAN, Dynabeads(®), glu-plate and PS plate respectively without any pre-enrichment step. The assay was specific for the targeted bacteria when investigated with other cross-reactant food and water-borne pathogens. The developed immunoassay offered undisputed advantages of being simple, sensitive and specific for the detection of S. typhimurium.
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Affiliation(s)
- Sruti Chattopadhyay
- Center for Biomedical Engineering, Indian Institute of Technology, Delhi, India.
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Pratiwi FW, Rijiravanich P, Somasundrum M, Surareungchai W. Electrochemical immunoassay for Salmonella Typhimurium based on magnetically collected Ag-enhanced DNA biobarcode labels. Analyst 2013; 138:5011-8. [DOI: 10.1039/c3an00606a] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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38
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Chajęcka-Wierzchowska W, Zadernowska A, Kłębukowska L, Łaniewska-Trokenheim Ł. SalmonellaDetection in Poultry Meat - Validation of VIDAS Xpress Automatic Enzyme-Linked Fluorescent Immunoassay-Based Method. J Food Saf 2012. [DOI: 10.1111/j.1745-4565.2012.00394.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Wioleta Chajęcka-Wierzchowska
- Chair of Industrial and Food Microbiology; Faculty of Food Sciences; University of Warmia and Mazury; Cieszyński Square 1 (bl. 43); 10-726; Olsztyn; Poland
| | - Anna Zadernowska
- Chair of Industrial and Food Microbiology; Faculty of Food Sciences; University of Warmia and Mazury; Cieszyński Square 1 (bl. 43); 10-726; Olsztyn; Poland
| | - Lucyna Kłębukowska
- Chair of Industrial and Food Microbiology; Faculty of Food Sciences; University of Warmia and Mazury; Cieszyński Square 1 (bl. 43); 10-726; Olsztyn; Poland
| | - Łucja Łaniewska-Trokenheim
- Chair of Industrial and Food Microbiology; Faculty of Food Sciences; University of Warmia and Mazury; Cieszyński Square 1 (bl. 43); 10-726; Olsztyn; Poland
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Determination of <I>E. coli</I> with Electrochemical Impedance on Homemade Microfluidic Chip. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2012. [DOI: 10.3724/sp.j.1096.2011.01307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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40
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Amaro M, Oaew S, Surareungchai W. Scano-magneto immunoassay based on carbon nanotubes/gold nanoparticles nanocomposite for Salmonella enterica serovar Typhimurium detection. Biosens Bioelectron 2012; 38:157-62. [PMID: 22705403 DOI: 10.1016/j.bios.2012.05.018] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2012] [Revised: 05/04/2012] [Accepted: 05/15/2012] [Indexed: 12/15/2022]
Abstract
To improve sensitivity of S. enterica serovar Typhimurium detection, multiwalled carbon nanotubes (MWCNTs) and gold nanoparticles (AuNPs) were combined and used as a label to amplify signal in a scanometric based assay. In this study, the MWCNTs/AuNPs nanocomposite was fabricated by directly assemble of Au(3+) to MWCNTs and allowed growing of AuNPs along the MWCNTs surface. This MWCNTs/AuNPs nanocomposite was then attached to anti-S. typhimurium antibody (MWCNTs/AuNPs/Ab(1)) and used as a detecting molecule. Upon binding to Salmonella, they were pre-concentrated by magenetic beads/antibody (MBs/Ab(2)) forming a sandwich immuno-complex which is later spotted on a nitrocellulose membrane coated slide. Silver reduction was applied to amplify signal. The detection limit of 42CFU/ml was achieved when 2% BSA was used as a blocking agent. Given different types of real samples testing, chicken broth was found to give lowest detection limit, followed by orange juice low fat and whole milk. Selectivity testing was performed by using Escherichia coli as interference and found slightly cross-reactivity which could be due to specificity of the Ab used. By virtue of using a slide for multi-samples spotting and a flatbed scanner for signal-read out acquisition, this scano-magneto immunoassay could enable low-cost detection as well as high throughput screening.
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Affiliation(s)
- Moegiratul Amaro
- School of Bioresources and Technology, King Mongkut's University of Technology Thonburi, Bangkhuntien, Bangkok 10150, Thailand
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41
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Moongkarndi P, Rodpai E, Kanarat S. Evaluation of an immunochromatographic assay for rapid detection of Salmonella enterica serovars Typhimurium and Enteritidis. J Vet Diagn Invest 2011; 23:797-801. [DOI: 10.1177/1040638711408063] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
An immunochromatographic assay was developed to detect Salmonella enterica serovars Typhimurium and Enteritidis in a single strip. The assay was constructed in the form of a sandwich, using 2 specific anti– S. Typhimurium and anti– S. Enteritidis antibodies immobilized on a nitrocellulose membrane at separated test lines, while the other specific antibody to Salmonella spp. was conjugated with gold nanoparticles. The test strips can immediately detect S. Typhimurium and S. Enteritidis specifically in a culture medium at levels as low as 104 and 106 cfu/ml, respectively. The contamination of S. Typhimurium and S. Enteritidis at 1 cfu/ml or greater can be detected by the test strips after 6–24 hr incubation. The specificities of the test strips to detect S. Typhimurium and S. Enteritidis, in spiked samples, were obtained at 100%; the sensitivities were at 98.89% (89/90) and 87.50% (70/80), respectively, compared with the conventional method. The newly developed multiplex immunochromatographic assay is the first report on the efficient detection of both S. Typhimurium and S. Enteritidis simultaneously in single strip. This test strip also provides advantages of simplicity and very rapid detection of these specific bacterial contaminants in chicken and can be useful for mass detection on chicken farms and in other veterinary products.
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Affiliation(s)
- Primchanien Moongkarndi
- Department of Microbiology, Faculty of Pharmacy, Mahidol University, Bangkok, Thailand (Moongkarnadi, Rodpai)
- Veterinary Public Health Laboratory, Ministry of Agriculture and Cooperatives, Department of Livestock Development, Bangkok, Thailand (Kanarat)
| | - Ekkarat Rodpai
- Department of Microbiology, Faculty of Pharmacy, Mahidol University, Bangkok, Thailand (Moongkarnadi, Rodpai)
- Veterinary Public Health Laboratory, Ministry of Agriculture and Cooperatives, Department of Livestock Development, Bangkok, Thailand (Kanarat)
| | - Sasitorn Kanarat
- Department of Microbiology, Faculty of Pharmacy, Mahidol University, Bangkok, Thailand (Moongkarnadi, Rodpai)
- Veterinary Public Health Laboratory, Ministry of Agriculture and Cooperatives, Department of Livestock Development, Bangkok, Thailand (Kanarat)
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Díaz-Serrano M, Rosado A, del Pilar J, Arias M, Guadalupe AR. A Polymer-Based Electrochemical DNA Biosensor for Salmonella: Preparation, Characterization and Calibration. ELECTROANAL 2011. [DOI: 10.1002/elan.201000698] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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44
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Lamarche P, Tawil N, Khan R, Aliakbar AM, Hassan MH, Chodavarapu VP, Mandeville R. CMOS Conductometric System for Growth Monitoring and Sensing of Bacteria. IEEE TRANSACTIONS ON BIOMEDICAL CIRCUITS AND SYSTEMS 2011; 5:223-230. [PMID: 23851473 DOI: 10.1109/tbcas.2010.2089794] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
We present the design and implementation of a prototype complementary metal-oxide semiconductor (CMOS) conductometric integrated circuit (IC) for colony growth monitoring and specific sensing of Escherichia coli (E. coli) bacteria. The detection of E. coli is done by employing T4 bacteriophages as receptor organisms. The conductometric system operates by measuring the resistance of the test sample between the electrodes of a two-electrode electrochemical system (reference electrode and working electrode). The CMOS IC is fabricated in a TSMC 0.35-μm process and uses a current-to-frequency (I to F) conversion circuit to convert the test sample resistance into a digital output modulated in frequency. Pulsewidth control (one-shot circuit) is implemented on-chip to control the pulsewidth of the output digital signal. The novelty in the current work lies in the ability of the CMOS sensor system to monitor very low initial concentrations of bacteria (4×10(2) to 4×10(4) colony forming unit (CFU)/mL). The CMOS system is also used to record the interaction between E. coli and its specific receptor T4 bacteriophage. The prototype CMOS IC consumes an average power of 1.85 mW with a 3.3-V dc power supply.
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Chunglok W, Wuragil DK, Oaew S, Somasundrum M, Surareungchai W. Immunoassay based on carbon nanotubes-enhanced ELISA for Salmonella enterica serovar Typhimurium. Biosens Bioelectron 2011; 26:3584-9. [DOI: 10.1016/j.bios.2011.02.005] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2010] [Revised: 02/01/2011] [Accepted: 02/04/2011] [Indexed: 10/18/2022]
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46
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Elizaquível P, Gabaldón J, Aznar R. Quantification of Salmonella spp., Listeria monocytogenes and Escherichia coli O157:H7 in non-spiked food products and evaluation of real-time PCR as a diagnostic tool in routine food analysis. Food Control 2011. [DOI: 10.1016/j.foodcont.2010.05.018] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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47
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48
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Jasson V, Jacxsens L, Luning P, Rajkovic A, Uyttendaele M. Alternative microbial methods: An overview and selection criteria. Food Microbiol 2010; 27:710-30. [DOI: 10.1016/j.fm.2010.04.008] [Citation(s) in RCA: 193] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2009] [Revised: 04/12/2010] [Accepted: 04/20/2010] [Indexed: 11/25/2022]
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49
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Simulation modelling and risk assessment as tools to identify the impact of climate change on microbiological food safety – The case study of fresh produce supply chain. Food Res Int 2010. [DOI: 10.1016/j.foodres.2009.07.009] [Citation(s) in RCA: 82] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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50
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Prevalence, persistence and control of Salmonella and Listeria in shrimp and shrimp products: A review. Food Control 2010. [DOI: 10.1016/j.foodcont.2009.06.020] [Citation(s) in RCA: 82] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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