1
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Hossain MM, Zainal Abidin SAS, Bujang A, Taib MN, Sagadevan S, Johan MR, Ahmad Nizar NN. TaqMan multiplex qPCR for detecting animal species in meat and meat products: Development, recent advances and future prospects. Food Control 2023. [DOI: 10.1016/j.foodcont.2023.109761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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2
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A Novel Universal Primer Multiplex Real-Time PCR (UP-M-rtPCR) Approach for Specific Identification and Quantitation of Cat, Dog, Fox, and Mink Fractions Using Nuclear DNA Sequences. Foods 2023; 12:foods12030594. [PMID: 36766123 PMCID: PMC9914226 DOI: 10.3390/foods12030594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 01/23/2023] [Accepted: 01/24/2023] [Indexed: 02/01/2023] Open
Abstract
Adulteration of meat with carnivorous animals (such as cats, dogs, foxes, and minks) can cause ethical problems and lead to disease transmission; however, DNA quantitative methods for four carnivorous species in one tube reaction are still rare. In this study, a carnivore-specific nuclear DNA sequence that is conserved in carnivorous animals but has base differences within the sequence was used to design universal primers for its conserved region and corresponding species-specific probes for the hypervariable region. A novel universal primer multiplex real-time PCR (UP-M-rtPCR) approach was developed for the specific identification and quantitation of cat, dog, fox, and mink fractions in a single reaction, with a 0.05 ng absolute limit of detection (LOD) and 0.05% relative LOD. This approach simplifies the PCR system and improves the efficiency of simultaneous identification of multiple animal-derived ingredients in meat. UP-M-rtPCR showed good accuracy (0.48-7.04% relative deviation) and precision (1.42-13.78% relative standard deviation) for quantitative analysis of cat, dog, fox, and mink DNA as well as excellent applicability for the evaluation of meat samples.
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3
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Detection of porcine DNA in food using direct asymmetric PCR and catalyzed hairpin assembly fluorescent biosensor: A novel assay for halal food analysis. Food Control 2022. [DOI: 10.1016/j.foodcont.2022.108989] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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4
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Nesvadbova M, Kralik P, Dziedzinska R, Dufkova M, Borilova G. An integrated system of four multiplex qPCR assays for the precise and sensitive identification of animal species in food and feed. Food Control 2022. [DOI: 10.1016/j.foodcont.2021.108781] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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5
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Zhao G, Shen X, Liu Y, Xie P, Yao C, Li X, Sun Y, Lei Y, Lei H. Direct lysis-multiplex polymerase chain reaction assay for beef fraud substitution with chicken, pork and duck. Food Control 2021. [DOI: 10.1016/j.foodcont.2021.108252] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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6
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In-house and on-field validation of the multiplex PCR assay developed for authentication of three commercially important shrimp species. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2021.111701] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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7
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Wang N, Xing RR, Zhou MY, Sun RX, Han JX, Zhang JK, Zheng WJ, Chen Y. Application of DNA barcoding and metabarcoding for species identification in salmon products. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2021; 38:754-768. [PMID: 33783328 DOI: 10.1080/19440049.2020.1869324] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Mislabelling is a significant manifestation of food fraud. Traditional Sanger sequencing technology is the gold standard for seafood species identification. However, this method is not suitable for analysing processed samples that may contain more than one species. This study tested the feasibility of next-generation sequencing in identifying mixed salmon products. Salmon samples containing up to eight species were amplified using 16S rRNA mini-barcode primers, and sequenced on an Illumina HiSeq2500 platform. All species were accurately identified, and mixtures as low as 1% (w/w) could be detected. Furthermore, this study conducted a market survey of 32 products labelled as salmon. For pure and mixed fish products, Sanger and next-generation sequencing techniques were respectively used for species identification, and for NGS results, we also used real-time PCR method to cross-validate the mixed products to further verify the accuracy of the DNA metabarcoding technology established in this study. DNA barcoding and metabarcoding of commercial salmon food products revealed the presence of mislabelling in 16 of 32 (50%) samples. The developed DNA barcoding and metabarcoding methods are useful for the identification of salmon species in food and can be used for quality control of various types of salmon products.
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Affiliation(s)
- Nan Wang
- Agro-product Safety Research Center, Chinese Academy of Inspection and Quarantine, Beijing, China
| | - Ran-Ran Xing
- Agro-product Safety Research Center, Chinese Academy of Inspection and Quarantine, Beijing, China
| | - Meng-Yue Zhou
- Agro-product Safety Research Center, Chinese Academy of Inspection and Quarantine, Beijing, China.,College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
| | - Rui-Xue Sun
- Agro-product Safety Research Center, Chinese Academy of Inspection and Quarantine, Beijing, China.,College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
| | - Jian-Xun Han
- Agro-product Safety Research Center, Chinese Academy of Inspection and Quarantine, Beijing, China
| | - Jiu-Kai Zhang
- Agro-product Safety Research Center, Chinese Academy of Inspection and Quarantine, Beijing, China
| | - Wen-Jie Zheng
- Tianjin Key Laboratory of Animal and Plant Resistance, Tianjin Normal University, Tianjin, China
| | - Ying Chen
- Agro-product Safety Research Center, Chinese Academy of Inspection and Quarantine, Beijing, China
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8
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Yu N, Ren J, Huang W, Xing R, Deng T, Chen Y. An effective analytical droplet digital PCR approach for identification and quantification of fur-bearing animal meat in raw and processed food. Food Chem 2021; 355:129525. [PMID: 33799266 DOI: 10.1016/j.foodchem.2021.129525] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2020] [Revised: 03/01/2021] [Accepted: 03/02/2021] [Indexed: 11/18/2022]
Abstract
Available nuclear gene sequences for meat detection are still rare and little applicability in the investigation of new types of meat adulteration such as fox, mink and raccoon dog was performed. In the present work, we developed a reliable qualitative and quantitative detection method for fur-bearing animal meat based on droplet digital PCR (ddPCR). Three sets of primers and probes targeted nuclear genes for fox, mink and raccoon dog were designed for ddPCR system; In addition, turkey was selected as internal reference to transform the copy numbers to the fraction of target species. Results indicated that the dynamic ranges of three fur-bearing animals were all from 1% to 90%; the limit of detection (LOD) and limit of quantification (LOQ) for three fur-bearing animals were same, with LOD 0.1% (w/w) and LOQ 1% (w/w). Moreover, we confirmed that different additives had no effect on quantification accuracy in the ddPCR assay.
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Affiliation(s)
- Ning Yu
- Chinese Academy of Inspection and Quarantine, Beijing, 100176
| | - Junan Ren
- Chinese Academy of Inspection and Quarantine, Beijing, 100176; Beijing Food & Wine Inspection and Testing 1st Station, Beijing, 101111
| | - Wensheng Huang
- Chinese Academy of Inspection and Quarantine, Beijing, 100176
| | - Ranran Xing
- Chinese Academy of Inspection and Quarantine, Beijing, 100176
| | - Tingting Deng
- Chinese Academy of Inspection and Quarantine, Beijing, 100176
| | - Ying Chen
- Chinese Academy of Inspection and Quarantine, Beijing, 100176.
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9
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Wang D, Wang L, Xue C, Han Y, Li H, Geng J, Jie J. Detection of meat from horse, donkey and their hybrids (mule/hinny) by duplex real-time fluorescent PCR. PLoS One 2020; 15:e0237077. [PMID: 33373374 PMCID: PMC7771862 DOI: 10.1371/journal.pone.0237077] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Accepted: 07/19/2020] [Indexed: 12/04/2022] Open
Abstract
Meat adulteration is currently a common practice worldwide. In China, adulteration of donkey meat products with the similar species (horse and mule/hinny) meat and mislabeling are becoming widespread concerns. In this study, a sensitive and species-specific duplex real-time PCR assay based on the simultaneous amplification of fragments of the creatine kinase muscle gene family, was developed and optimized for the identification of horse, donkey and mule /hinny species in raw and heat-processed meat products. Duplex real-time PCR results showed different fluorescence amplification curves for horse and donkey. Both kinds of fluorescence amplification curves appeared simultaneously for mule/hinny. The limit of detection (LOD) of the method was up to 0.01 ng /μL. The method and strategy developed in this study could be applied to detect the presence of adulterants from horse and mule /hinny meat in raw donkey meat and meat products.
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Affiliation(s)
- Dan Wang
- Biology Lab, Beijing Municipal Center for Food Safety Monitoring and Risk Assessment, Beijing, China
| | - Liping Wang
- Biology Lab, Beijing Municipal Center for Food Safety Monitoring and Risk Assessment, Beijing, China
| | - Chenyu Xue
- Biology Lab, Beijing Municipal Center for Food Safety Monitoring and Risk Assessment, Beijing, China
| | - Yuebei Han
- Biology Lab, Beijing Municipal Center for Food Safety Monitoring and Risk Assessment, Beijing, China
| | - Hejing Li
- Biology Lab, Beijing Municipal Center for Food Safety Monitoring and Risk Assessment, Beijing, China
| | - Jianqiang Geng
- Biology Lab, Beijing Municipal Center for Food Safety Monitoring and Risk Assessment, Beijing, China
| | - Jiang Jie
- Biology Lab, Beijing Municipal Center for Food Safety Monitoring and Risk Assessment, Beijing, China
- * E-mail:
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10
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Kaltenbrunner M, Mayer W, Kerkhoff K, Epp R, Rüggeberg H, Hochegger R, Cichna-Markl M. Applicability of a duplex and four singleplex real-time PCR assays for the qualitative and quantitative determination of wild boar and domestic pig meat in processed food products. Sci Rep 2020; 10:17243. [PMID: 33057090 PMCID: PMC7560752 DOI: 10.1038/s41598-020-72655-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Accepted: 09/03/2020] [Indexed: 12/04/2022] Open
Abstract
Appropriate analytical methods are needed for the detection of food authentication. We investigated the applicability of a duplex real-time PCR assay targeting chromosome 1 and two singleplex real-time PCR assays targeting chromosome 9, both published recently, for the qualitative and quantitative determination of wild boar and domestic pig in processed food products. In addition, two singleplex real-time PCR assays targeting chromosome 7 were tested for their suitability to differentiate the two subspecies. Even by targeting the three genome loci, the probability of misclassification was not completely eliminated. Application of the real-time PCR assays to a total of 35 commercial meat products, including 22 goulash products, revealed that domestic pig DNA was frequently present, even in 14 out of 15 products declared to consist of 100% wild boar. Quantitative results obtained with the real-time PCR assays for wild boar (p < 0.001) and those for domestic pig (p < 0.001) were significantly different. However, the results obtained with the real-time PCR assays for wild boar (r = 0.673; p < 0.001) and those for domestic pig (r = 0.505; p = 0.002) were found to be significantly correlated. If the rules given in the paper are followed, the real-time PCR assays are applicable for routine analysis.
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Affiliation(s)
- Maria Kaltenbrunner
- Department of Molecular Biology and Microbiology, Institute for Food Safety Vienna, Austrian Agency for Health and Food Safety, Spargelfeldstraße 191, 1220 Vienna, Austria
- Department of Analytical Chemistry, Faculty of Chemistry, University of Vienna, Währinger Straße 38, 1090 Vienna, Austria
| | - Walter Mayer
- Department of Molecular Biology and Microbiology, Institute for Food Safety Vienna, Austrian Agency for Health and Food Safety, Spargelfeldstraße 191, 1220 Vienna, Austria
| | - Kirsten Kerkhoff
- Impetus GmbH & Co. Bioscience KG, Fischkai 1, 27572 Bremerhaven, Germany
| | - Rita Epp
- Impetus GmbH & Co. Bioscience KG, Fischkai 1, 27572 Bremerhaven, Germany
| | - Hermann Rüggeberg
- Impetus GmbH & Co. Bioscience KG, Fischkai 1, 27572 Bremerhaven, Germany
| | - Rupert Hochegger
- Department of Molecular Biology and Microbiology, Institute for Food Safety Vienna, Austrian Agency for Health and Food Safety, Spargelfeldstraße 191, 1220 Vienna, Austria
| | - Margit Cichna-Markl
- Department of Analytical Chemistry, Faculty of Chemistry, University of Vienna, Währinger Straße 38, 1090 Vienna, Austria
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11
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Köppel R, Lederman R, van Velsen F, Ganeshan A. Detection of animal DNA in vegan food by multiplex qPCR system. Eur Food Res Technol 2020. [DOI: 10.1007/s00217-020-03608-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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12
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Hossain MAM, Uddin SMK, Sultana S, Wahab YA, Sagadevan S, Johan MR, Ali ME. Authentication of Halal and Kosher meat and meat products: Analytical approaches, current progresses and future prospects. Crit Rev Food Sci Nutr 2020; 62:285-310. [DOI: 10.1080/10408398.2020.1814691] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- M. A. Motalib Hossain
- Nanotechnology and Catalysis Research Centre (NANOCAT), University of Malaya, Kuala Lumpur, Malaysia
| | - Syed Muhammad Kamal Uddin
- Nanotechnology and Catalysis Research Centre (NANOCAT), University of Malaya, Kuala Lumpur, Malaysia
| | - Sharmin Sultana
- Nanotechnology and Catalysis Research Centre (NANOCAT), University of Malaya, Kuala Lumpur, Malaysia
| | - Yasmin Abdul Wahab
- Nanotechnology and Catalysis Research Centre (NANOCAT), University of Malaya, Kuala Lumpur, Malaysia
| | - Suresh Sagadevan
- Nanotechnology and Catalysis Research Centre (NANOCAT), University of Malaya, Kuala Lumpur, Malaysia
| | - Mohd Rafie Johan
- Nanotechnology and Catalysis Research Centre (NANOCAT), University of Malaya, Kuala Lumpur, Malaysia
| | - Md. Eaqub Ali
- Nanotechnology and Catalysis Research Centre (NANOCAT), University of Malaya, Kuala Lumpur, Malaysia
- Centre for Research in Biotechnology for Agriculture (CEBAR), University of Malaya, Kuala Lumpur, Malaysia
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13
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Zhao L, Wang K, Yan C, Xiao J, Wu H, Zhang H, Zhang X, Zhang C, Hu Y, Lu X, Zheng W. A PCR-based lateral flow assay for the detection of Turkey ingredient in food products. Food Control 2020. [DOI: 10.1016/j.foodcont.2019.106774] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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14
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Wang W, Liu J, Zhang Q, Zhou X, Liu B. Multiplex PCR assay for identification and quantification of bovine and equine in minced meats using novel specific nuclear DNA sequences. Food Control 2019. [DOI: 10.1016/j.foodcont.2019.05.016] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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15
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Kim MJ, Kim HY. A fast multiplex real-time PCR assay for simultaneous detection of pork, chicken, and beef in commercial processed meat products. Lebensm Wiss Technol 2019. [DOI: 10.1016/j.lwt.2019.108390] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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16
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Sánchez A, Quinteiro J, Vázquez JA, Perez-Martín RI, Sotelo CG. Comparison of real-time PCR methods for quantification of European hake (Merluccius merluccius) in processed food samples. Food Chem 2019; 272:279-285. [PMID: 30309545 DOI: 10.1016/j.foodchem.2018.08.031] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Revised: 07/29/2018] [Accepted: 08/08/2018] [Indexed: 11/16/2022]
Abstract
The quantification of species in commercial products is limited by analytical shortcomings, as most of them provide semiquantitative results. An exception is real-time PCR, which can provide quantitative results using hybridization probes. In the present work, this technique has been applied to the absolute, absolute-relative and relative quantification of the most valued hake species in European markets, Merluccius merluccius (European Hake). The best quantification results for this species in binary mixtures with non-target species (Merluccius capensis) and using a species-specific real-time PCR MMER_VIC system was achieved using a relative quantification approach (MLL as reference system). Absolute quantification using the MLL nuclear system has been demonstrated as appropriate for the quantification of the Merluccius genus in food model samples. This study reveals the impact of different reference systems (MLL and HAKE) in the absolute-relative and relative quantification approaches, showing that the nuclear MLL system performed better than the mitochondrial HAKE system.
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Affiliation(s)
- A Sánchez
- Instituto de Investigaciones Marinas, Consejo Superior de Investigaciones Científicas (CSIC), Eduardo Cabello 6, Vigo 36208, Pontevedra, Spain.
| | - J Quinteiro
- Departamento de Bioquímica y Biología Molecular, Facultad de Biología, Universidad de Santiago de Compostela, Santiago de Compostela 15782, A Coruña, Spain
| | - J A Vázquez
- Instituto de Investigaciones Marinas, Consejo Superior de Investigaciones Científicas (CSIC), Eduardo Cabello 6, Vigo 36208, Pontevedra, Spain
| | - R I Perez-Martín
- Instituto de Investigaciones Marinas, Consejo Superior de Investigaciones Científicas (CSIC), Eduardo Cabello 6, Vigo 36208, Pontevedra, Spain
| | - C G Sotelo
- Instituto de Investigaciones Marinas, Consejo Superior de Investigaciones Científicas (CSIC), Eduardo Cabello 6, Vigo 36208, Pontevedra, Spain
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17
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Türkanoǧlu Özçelik A, Yılmaz S, Gökbora S, İnan M. A quantitative polymerase chain reaction assay for the detection of equine (horse and donkey)-originated meat in processed bovine meat products. FOOD SCI TECHNOL INT 2018; 25:38-46. [PMID: 30149728 DOI: 10.1177/1082013218794849] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Meat is one of the most important basic foodstuffs in human nutrition. Nowadays, adulteration and authenticity are common problems for meat products. Identification of meat species is important in terms of consumer protection and prevention of adulteration. There are different methods to determine adulteration of meat and meat products. These methods are histological controls, serological tests, and quantitative polymerase chain reaction. In this study, species identification and quantification analysis of meat and meat products were done by using horse-, donkey-, and bovine-specific primers with quantitative polymerase chain reaction method. Triple meat mixtures containing horse and donkey meat ranging from 0.1 to 50% levels were prepared within a bovine mixture for using species identification and quantification analysis. The method specificity was confirmed by melting curve analysis. In conclusion, quantitative polymerase chain reaction is an easy, rapid, and reliable method for meat species identification, and with this study an applicable method was developed for the detection and quantification of equine-originated meat in bovine meat products.
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Affiliation(s)
| | - Semiramis Yılmaz
- 2 Department of Food Engineering, Faculty of Engineering, Akdeniz University, Antalya, Turkey
| | - Sevda Gökbora
- 2 Department of Food Engineering, Faculty of Engineering, Akdeniz University, Antalya, Turkey
| | - Mehmet İnan
- 1 Food Safety and Agricultural Research Center, Akdeniz University, Antalya, Turkey.,2 Department of Food Engineering, Faculty of Engineering, Akdeniz University, Antalya, Turkey
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18
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Thanakiatkrai P, Dechnakarin J, Ngasaman R, Kitpipit T. Direct pentaplex PCR assay: An adjunct panel for meat species identification in Asian food products. Food Chem 2018; 271:767-772. [PMID: 30236743 DOI: 10.1016/j.foodchem.2018.07.143] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Revised: 07/08/2018] [Accepted: 07/21/2018] [Indexed: 11/20/2022]
Abstract
A direct pentaplex PCR assay was developed for the identification of meat from sources other than those declared on the packaging. Species-specific primers were designed, based on the mitochondrial cytochrome oxidase I (COI) gene. The assay amplified specific DNA fragments from dog (230 bp), duck (283 bp), buffalo (363 bp), goat (396 bp), and sheep (477 bp). The proposed method is capable of identifying target species accurately and is reproducible, sensitive and robust for use with real-world foods and food products. In total, 26 of 117 meat and commercial food products tested were shown to contain DNA from species not declared on the label.
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Affiliation(s)
- Phuvadol Thanakiatkrai
- Forensic Science Program, Department of Applied Science, Faculty of Science, Prince of Songkla University, 90110, Thailand
| | - Jirapa Dechnakarin
- Forensic Science Program, Department of Applied Science, Faculty of Science, Prince of Songkla University, 90110, Thailand
| | | | - Thitika Kitpipit
- Forensic Science Program, Department of Applied Science, Faculty of Science, Prince of Songkla University, 90110, Thailand.
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19
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Development of a fast duplex real-time PCR assay for simultaneous detection of chicken and pigeon in raw and heat-treated meats. Food Control 2018. [DOI: 10.1016/j.foodcont.2017.09.012] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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20
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Meat species identification by two direct-triplex real-time PCR assays using low resolution melting. Food Chem 2017; 233:144-150. [DOI: 10.1016/j.foodchem.2017.04.090] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2016] [Revised: 01/02/2017] [Accepted: 04/16/2017] [Indexed: 11/19/2022]
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21
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Species identification and animal authentication in meat products: a review. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2017. [DOI: 10.1007/s11694-017-9625-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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22
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Ren Y, Li X, Liu Y, Yang L, Cai Y, Quan S, Pan L, Chen S. A novel quantitative real-time PCR method for identification and quantification of mammalian and poultry species in foods. Food Control 2017. [DOI: 10.1016/j.foodcont.2017.01.003] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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23
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Furutani S, Hagihara Y, Nagai H. On-site identification of meat species in processed foods by a rapid real-time polymerase chain reaction system. Meat Sci 2017; 131:56-59. [PMID: 28475952 DOI: 10.1016/j.meatsci.2017.04.009] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2016] [Revised: 03/11/2017] [Accepted: 04/18/2017] [Indexed: 11/15/2022]
Abstract
Correct labeling of foods is critical for consumers who wish to avoid a specific meat species for religious or cultural reasons. Therefore, gene-based point-of-care food analysis by real-time Polymerase Chain Reaction (PCR) is expected to contribute to the quality control in the food industry. In this study, we perform rapid identification of meat species by our portable rapid real-time PCR system, following a very simple DNA extraction method. Applying these techniques, we correctly identified beef, pork, chicken, rabbit, horse, and mutton in processed foods in 20min. Our system was sensitive enough to detect the interfusion of about 0.1% chicken egg-derived DNA in a processed food sample. Our rapid real-time PCR system is expected to contribute to the quality control in food industries because it can be applied for the identification of meat species, and future applications can expand its functionality to the detection of genetically modified organisms or mutations.
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Affiliation(s)
- Shunsuke Furutani
- Biomedical Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 1-8-31 Midorigaoka, Ikeda, Osaka 563-8577, Japan
| | - Yoshihisa Hagihara
- Biomedical Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 1-8-31 Midorigaoka, Ikeda, Osaka 563-8577, Japan
| | - Hidenori Nagai
- Biomedical Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 1-8-31 Midorigaoka, Ikeda, Osaka 563-8577, Japan.
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24
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Horvath-Ungerboeck C, Widmann K, Handl S. Detection of DNA from undeclared animal species in commercial elimination diets for dogs using PCR. Vet Dermatol 2017; 28:373-e86. [PMID: 28247445 DOI: 10.1111/vde.12431] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/08/2016] [Indexed: 11/29/2022]
Abstract
BACKGROUND Elimination diets are the gold standard for the diagnosis of adverse food reactions (AFR). A broad variety of commercial diets are available containing either hydrolysed protein or novel ingredients which claim to be suitable for elimination diets. Contamination may be one factor accounting for the failure of commercial elimination diet trials. HYPOTHESIS/OBJECTIVES To test commercial diets labelled as suitable for elimination diets for dogs, for DNA of animal origin other than that declared on the label. METHODS Twelve commercial dry and tinned dog food products were investigated for DNA of animal origin (chicken, turkey, beef, mutton and pork) using PCR testing. RESULTS In nine of 10 over-the-counter diets, DNA of one or more animal species other than declared on the label was identified. The DNA most frequently detected was derived from beef (n = 8) and pork (n = 6). Two hydrolysed diets only contained DNA of the declared animal source. CONCLUSIONS AND CLINICAL IMPORTANCE Over-the-counter "single protein diets" or canned meat products cannot be recommended for the diagnosis of dogs with AFR because contamination may cause the elimination diet to fail.
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Affiliation(s)
- Christa Horvath-Ungerboeck
- Clinical Unit of Internal Medicine Small Animals, Department for Companion Animals and Horses, University Clinic for Small Animals, University of Veterinary Medicine, Veterinaerplatz 1, 1210, Vienna, Austria
| | - Karoline Widmann
- Clinical Unit of Internal Medicine Small Animals, Department for Companion Animals and Horses, University Clinic for Small Animals, University of Veterinary Medicine, Veterinaerplatz 1, 1210, Vienna, Austria
| | - Stefanie Handl
- Futterambulanz nutritionist practice, Strohgasse12/15, 1030, Vienna, Austria
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25
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Detection and genome characterization of bovine polyomaviruses in beef muscle and ground beef samples from Germany. Int J Food Microbiol 2017; 241:168-172. [DOI: 10.1016/j.ijfoodmicro.2016.10.024] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Revised: 10/05/2016] [Accepted: 10/19/2016] [Indexed: 11/17/2022]
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26
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Meira L, Costa J, Villa C, Ramos F, Oliveira MBP, Mafra I. EvaGreen real-time PCR to determine horse meat adulteration in processed foods. Lebensm Wiss Technol 2017. [DOI: 10.1016/j.lwt.2016.08.061] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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27
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Jiang W, Johnson C, Simecek N, López-Álvarez MR, Di D, Trowsdale J, Traherne JA. qKAT: a high-throughput qPCR method for KIR gene copy number and haplotype determination. Genome Med 2016; 8:99. [PMID: 27686127 PMCID: PMC5041586 DOI: 10.1186/s13073-016-0358-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Accepted: 09/15/2016] [Indexed: 12/15/2022] Open
Abstract
Killer cell immunoglobulin-like receptors (KIRs), expressed on natural killer cells and T cells, have considerable biomedical relevance playing significant roles in immunity, pregnancy and transplantation. The KIR locus is one of the most complex and polymorphic regions of the human genome. Extensive sequence homology and copy number variation makes KIRs technically laborious and expensive to type. To aid the investigation of KIRs in human disease we developed a high-throughput, multiplex real-time polymerase chain reaction method to determine gene copy number for each KIR locus. We used reference DNA samples to validate the accuracy and a cohort of 1698 individuals to evaluate capability for precise copy number discrimination. The method provides improved information and identifies KIR haplotype alterations that were not previously visible using other approaches.
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Affiliation(s)
- W Jiang
- Cambridge Institute for Medical Research, University of Cambridge, Cambridge Biomedical Campus, Wellcome Trust/MRC Building, Hills Road, Cambridge, CB2 0XY, UK
| | - C Johnson
- Cambridge Institute for Medical Research, University of Cambridge, Cambridge Biomedical Campus, Wellcome Trust/MRC Building, Hills Road, Cambridge, CB2 0XY, UK
| | - N Simecek
- Cambridge Institute for Medical Research, University of Cambridge, Cambridge Biomedical Campus, Wellcome Trust/MRC Building, Hills Road, Cambridge, CB2 0XY, UK
| | - M R López-Álvarez
- Cambridge Institute for Medical Research, University of Cambridge, Cambridge Biomedical Campus, Wellcome Trust/MRC Building, Hills Road, Cambridge, CB2 0XY, UK
| | - D Di
- Cambridge Institute for Medical Research, University of Cambridge, Cambridge Biomedical Campus, Wellcome Trust/MRC Building, Hills Road, Cambridge, CB2 0XY, UK
| | - J Trowsdale
- Immunology Division, Department of Pathology, University of Cambridge, Tennis Court Road, Cambridge, CB2 1QP, UK
| | - J A Traherne
- Immunology Division, Department of Pathology, University of Cambridge, Tennis Court Road, Cambridge, CB2 1QP, UK.
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Kim M, Yoo I, Lee SY, Hong Y, Kim HY. Quantitative detection of pork in commercial meat products by TaqMan® real-time PCR assay targeting the mitochondrial D-loop region. Food Chem 2016; 210:102-6. [PMID: 27211626 DOI: 10.1016/j.foodchem.2016.04.084] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2015] [Revised: 04/01/2016] [Accepted: 04/17/2016] [Indexed: 11/26/2022]
Abstract
The TaqMan® real-time PCR assay using the mitochondrial D-loop region was developed for the quantitative detection of pork in processed meat products. The newly designed primers and probe specifically amplified pork without any cross-reactivity with non-target animal species. The limit of detection of the real-time PCR assay was 0.1pg of heat-treated pork meat and 0.1% (w/w) pork meat in beef and chicken meat mixtures. The quantitative real-time PCR assay was applied to analyze the pork meat content in 22 commercial processed meat products including jerkies, press hams, sausages, hamburger patties and steaks, grilled short rib patties, and nuggets. The developed real-time PCR method was able to detect pork meat in various types of processed meat products that declared the use of pork meat on their label. All processed meat products that declared no use of pork meat showed a negative result in the assay. The method developed in this study showed sensitivity and specificity in the quantification of pork meat in commercial processed meat products.
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Affiliation(s)
- Miju Kim
- Institute of Life Sciences & Resources and Department of Food Science & Biotechnology, Kyung Hee University, Yongin 446-701, Republic of Korea
| | - Insuk Yoo
- Institute of Life Sciences & Resources and Department of Food Science & Biotechnology, Kyung Hee University, Yongin 446-701, Republic of Korea
| | - Shin-Young Lee
- Institute of Life Sciences & Resources and Department of Food Science & Biotechnology, Kyung Hee University, Yongin 446-701, Republic of Korea
| | - Yeun Hong
- Institute of Life Sciences & Resources and Department of Food Science & Biotechnology, Kyung Hee University, Yongin 446-701, Republic of Korea
| | - Hae-Yeong Kim
- Institute of Life Sciences & Resources and Department of Food Science & Biotechnology, Kyung Hee University, Yongin 446-701, Republic of Korea.
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29
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Nagy A, Černíková L, Vitásková E, Křivda V, Dán Á, Dirbáková Z, Jiřincová H, Procházka B, Sedlák K, Havlíčková M. MeltMan: Optimization, Evaluation, and Universal Application of a qPCR System Integrating the TaqMan qPCR and Melting Analysis into a Single Assay. PLoS One 2016; 11:e0151204. [PMID: 27031831 PMCID: PMC4816343 DOI: 10.1371/journal.pone.0151204] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Accepted: 02/23/2016] [Indexed: 12/05/2022] Open
Abstract
In the present work, we optimised and evaluated a qPCR system integrating 6-FAM (6-carboxyfluorescein)-labelled TaqMan probes and melting analysis using the SYTO 82 (S82) DNA binding dye in a single reaction. We investigated the influence of the S82 on various TaqMan and melting analysis parameters and defined its optimal concentration. In the next step, the method was evaluated in 36 different TaqMan assays with a total of 729 paired reactions using various DNA and RNA templates, including field specimens. In addition, the melting profiles of interest were correlated with the electrophoretic patterns. We proved that the S82 is fully compatible with the FAM-TaqMan system. Further, the advantages of this approach in routine diagnostic TaqMan qPCR were illustrated with practical examples. These included solving problems with flat or other atypical amplification curves or even false negativity as a result of probe binding failure. Our data clearly show that the integration of the TaqMan qPCR and melting analysis into a single assay provides an additional control option as well as the opportunity to perform more complex analyses, get more data from the reactions, and obtain analysis results with higher confidence.
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Affiliation(s)
- Alexander Nagy
- Laboratory of Molecular Methods, State Veterinary Institute Prague, Prague, Czech Republic
- National Reference Laboratory for Influenza, National Institute of Public Health, Prague, Czech Republic
- * E-mail:
| | - Lenka Černíková
- Laboratory of Molecular Methods, State Veterinary Institute Prague, Prague, Czech Republic
| | - Eliška Vitásková
- Laboratory of Molecular Methods, State Veterinary Institute Prague, Prague, Czech Republic
| | - Vlastimil Křivda
- Laboratory of Molecular Methods, State Veterinary Institute Prague, Prague, Czech Republic
- Department of Virology and Serology, State Veterinary Institute Prague, Prague, Czech Republic
| | - Ádám Dán
- National Food Chain Safety Office, Veterinary Diagnostic Directorate, Molecular Biology Laboratory, Budapest, Hungary
| | - Zuzana Dirbáková
- Department of Virology, State Veterinary Institute Zvolen, Zvolen, Slovak Republic
| | - Helena Jiřincová
- National Reference Laboratory for Influenza, National Institute of Public Health, Prague, Czech Republic
| | - Bohumír Procházka
- Department of Informatics and Biostatistics, National Institute of Public Health, Prague, Czech Republic
| | - Kamil Sedlák
- Department of Virology and Serology, State Veterinary Institute Prague, Prague, Czech Republic
| | - Martina Havlíčková
- National Reference Laboratory for Influenza, National Institute of Public Health, Prague, Czech Republic
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30
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Safdar M, Junejo Y. The development of a hexaplex-conventional PCR for identification of six animal and plant species in foodstuffs. Food Chem 2016; 192:745-9. [PMID: 26304406 DOI: 10.1016/j.foodchem.2015.07.082] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2014] [Revised: 07/08/2015] [Accepted: 07/20/2015] [Indexed: 10/23/2022]
Abstract
A hexaplex-conventional PCR assay was developed for identification of five meat and one plant species origins in foodstuffs simultaneously. The method merges the use of horse (Equus caballus), soybean (Glycine max), sheep (Ovis aries), poultry (Meleagris meleagris), pork (Sus scrofa), and cow (Bos taurus) specific primers that amplify fragments (horse; 85 bp, soybean; 100 bp, sheep; 119 bp, poultry; 183 bp, pork; 212 bp and cow; 271 bp) of the mitochondrial cyt b, lectin, 12S rRNA, 12S rRNA, ATPase subunit 6 genes and ATPase subunit 8 genes respectively, and a universal 18S rRNA primers that amplifies a 141 bp. Multiplex analysis of the reference food samples showed that detection limit of the hexaplex assay was 0.01% for each species. Taken together, all data indicated that this hexaplex PCR assay was a simple, fast, sensitive, specific, and cost-effective detection method for horse, soybean, sheep, poultry, pork and cow species in foodstuffs.
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Affiliation(s)
- Muhammad Safdar
- Department of Medical Biology and Genetics, University of Gaziantep, Gaziantep, Turkey.
| | - Yasmeen Junejo
- Department of Medical Biology and Genetics, University of Gaziantep, Gaziantep, Turkey; National Center of Excellence in Analytical Chemistry, University of Sindh Jamshoro, Jamshoro 76080, Pakistan
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31
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Duplex real-time PCR assay for the simultaneous determination of the roe deer (Capreolus capreolus) and deer (sum of fallow deer, red deer and sika deer) content in game meat products. Food Control 2015. [DOI: 10.1016/j.foodcont.2015.04.023] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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32
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Safdar M, Junejo Y, Arman K, Abasıyanık MF. Rapid bovine and caprine species identification in ruminant feeds by duplex real-time PCR melting curve analysis using EvaGreen fluorescence dye. Mol Biotechnol 2015; 56:770-6. [PMID: 24770990 DOI: 10.1007/s12033-014-9756-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A duplex real-time PCR assay with melting curve analysis, using the EvaGreen fluorescence dye, was developed for rapid and reliable identification of bovine and caprine in ruminant feeds. The method merges the use of bovine (Bos taurus) and caprine (Capra hircus) specific primers that amplify small fragments (bovine 96 bp and caprine 142 bp) of the mitochondrial 16S rRNA and 12S rRNA genes, respectively. DNA was isolated from heat-treated meats (133 °C/3 bar for 20 min) mixtures of bovine and caprine and was used to optimize the assay. Gene products of caprine and bovine produced two distinct melting peaks simultaneously at 82 and 86.8 °C, respectively. Duplex analysis of the reference samples showed that the detection limit of the assay was 0.003 % for bovine and 0.005 % for caprine species. The aim of this study was to develop a duplex real-time PCR assay followed by a melt curve step for sensitive, rapid, specific, and cost-effective detection of bovine and caprine species based on the amplicon melting peak in ruminant feeds to prevent Transmissible Spongiform Encephalopathies.
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Affiliation(s)
- M Safdar
- Department of Medical Biology and Genetics, University of Gaziantep, Gaziantep, Turkey,
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33
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Kanthaswamy S. Review: domestic animal forensic genetics - biological evidence, genetic markers, analytical approaches and challenges. Anim Genet 2015; 46:473-84. [DOI: 10.1111/age.12335] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/11/2015] [Indexed: 01/09/2023]
Affiliation(s)
- S. Kanthaswamy
- School of Mathematical and Natural Sciences; Arizona State University (ASU) at the West Campus; 4701 W Thunderbird Road Glendale AZ 85306-4908 USA
- California National Primate Research Center; University of California; Davis CA 95616 USA
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34
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Flaudrops C, Armstrong N, Raoult D, Chabrière E. Determination of the animal origin of meat and gelatin by MALDI-TOF-MS. J Food Compost Anal 2015. [DOI: 10.1016/j.jfca.2015.02.009] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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35
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Keller M, Naue J, Zengerle R, von Stetten F, Schmidt U. Automated Forensic Animal Family Identification by Nested PCR and Melt Curve Analysis on an Off-the-Shelf Thermocycler Augmented with a Centrifugal Microfluidic Disk Segment. PLoS One 2015; 10:e0131845. [PMID: 26147196 PMCID: PMC4492497 DOI: 10.1371/journal.pone.0131845] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2015] [Accepted: 06/05/2015] [Indexed: 11/19/2022] Open
Abstract
Nested PCR remains a labor-intensive and error-prone biomolecular analysis. Laboratory workflow automation by precise control of minute liquid volumes in centrifugal microfluidic Lab-on-a-Chip systems holds great potential for such applications. However, the majority of these systems require costly custom-made processing devices. Our idea is to augment a standard laboratory device, here a centrifugal real-time PCR thermocycler, with inbuilt liquid handling capabilities for automation. We have developed a microfluidic disk segment enabling an automated nested real-time PCR assay for identification of common European animal groups adapted to forensic standards. For the first time we utilize a novel combination of fluidic elements, including pre-storage of reagents, to automate the assay at constant rotational frequency of an off-the-shelf thermocycler. It provides a universal duplex pre-amplification of short fragments of the mitochondrial 12S rRNA and cytochrome b genes, animal-group-specific main-amplifications, and melting curve analysis for differentiation. The system was characterized with respect to assay sensitivity, specificity, risk of cross-contamination, and detection of minor components in mixtures. 92.2% of the performed tests were recognized as fluidically failure-free sample handling and used for evaluation. Altogether, augmentation of the standard real-time thermocycler with a self-contained centrifugal microfluidic disk segment resulted in an accelerated and automated analysis reducing hands-on time, and circumventing the risk of contamination associated with regular nested PCR protocols.
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Affiliation(s)
- Mark Keller
- Laboratory for MEMS Applications, IMTEK–Department of Microsystems Engineering, University of Freiburg, Freiburg, Germany
- Hahn-Schickard, Freiburg, Germany
| | - Jana Naue
- Institute of Legal Medicine, Freiburg University Medical Center, Freiburg, Germany
- Faculty of Biology, University of Freiburg, Freiburg, Germany
| | - Roland Zengerle
- Laboratory for MEMS Applications, IMTEK–Department of Microsystems Engineering, University of Freiburg, Freiburg, Germany
- Hahn-Schickard, Freiburg, Germany
- BIOSS–Centre for Biological Signalling Studies, University of Freiburg, Freiburg, Germany
| | - Felix von Stetten
- Laboratory for MEMS Applications, IMTEK–Department of Microsystems Engineering, University of Freiburg, Freiburg, Germany
- Hahn-Schickard, Freiburg, Germany
| | - Ulrike Schmidt
- Institute of Legal Medicine, Freiburg University Medical Center, Freiburg, Germany
- * E-mail:
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36
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Druml B, Mayer W, Cichna-Markl M, Hochegger R. Development and validation of a TaqMan real-time PCR assay for the identification and quantification of roe deer (Capreolus capreolus) in food to detect food adulteration. Food Chem 2015; 178:319-26. [DOI: 10.1016/j.foodchem.2015.01.003] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2014] [Revised: 05/29/2014] [Accepted: 01/04/2015] [Indexed: 10/24/2022]
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37
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Lahdenperä S, Spangar A, Lempainen AM, Joki L, Soukka T. An integrated closed-tube 2-plex PCR amplification and hybridization assay with switchable lanthanide luminescence based spatial detection. Analyst 2015; 140:3960-8. [PMID: 25882638 DOI: 10.1039/c5an00253b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Switchable lanthanide luminescence is a binary probe technology that inherently enables a high signal modulation in separation-free detection of DNA targets. A luminescent lanthanide complex is formed only when the two probes hybridize adjacently to their target DNA. We have now further adapted this technology for the first time in the integration of a 2-plex polymerase chain reaction (PCR) amplification and hybridization-based solid-phase detection of the amplification products of the Staphylococcus aureus gyrB gene and an internal amplification control (IAC). The assay was performed in a sealed polypropylene PCR chip containing a flat-bottom reaction chamber with two immobilized capture probe spots. The surface of the reaction chamber was functionalized with NHS-PEG-azide and alkyne-modified capture probes for each amplicon, labeled with a light harvesting antenna ligand, and covalently attached as spots to the azide-modified reaction chamber using a copper(i)-catalyzed azide-alkyne cycloaddition. Asymmetric duplex-PCR was then performed with no template, one template or both templates present and with a europium ion carrier chelate labeled probe for each amplicon in the reaction. After amplification europium fluorescence was measured by scanning the reaction chamber as a 10 × 10 raster with 0.6 mm resolution in time-resolved mode. With this assay we were able to co-amplify and detect the amplification products of the gyrB target from 100, 1000 and 10,000 copies of isolated S. aureus DNA together with the amplification products from the initial 5000 copies of the synthetic IAC template in the same sealed reaction chamber. The addition of 10,000 copies of isolated non-target Escherichia coli DNA in the same reaction with 5000 copies of the synthetic IAC template did not interfere with the amplification or detection of the IAC. The dynamic range of the assay for the synthetic S. aureus gyrB target was three orders of magnitude and the limit of detection of 8 pM was obtained. This proof-of-concept study shows that the switchable lanthanide luminescent probes enable separation-free array-based multiplexed detection of the amplification products in a closed-tube PCR which can enable a higher degree of multiplexing than is currently feasible by using different spectrally separated fluorescent probes.
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Affiliation(s)
- Susanne Lahdenperä
- Department of Biotechnology, University of Turku, Tykistökatu 6 A 6th floor, FI-20520 Turku, Finland.
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38
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Thomas AM, White GR, Plant E, Zhou P. Challenges and practices in Halal meat preparation: a case study investigation of a UK slaughterhouse. TOTAL QUALITY MANAGEMENT & BUSINESS EXCELLENCE 2015. [DOI: 10.1080/14783363.2015.1044892] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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39
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Gandham SHA, Volk DE, Gorenstein DG. Acquisition of data at multiple gains within a single thermal melt experiment using the Rotor-Gene Q instrument. J Anal Sci Technol 2015. [DOI: 10.1186/s40543-015-0046-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Rotor-Gene Q instrument was used to perform high-resolution protein thermal melt studies to characterize protein-small-molecule interaction. Fluorescent dye (1-anilino-8-naphthalenesulfonate (1,8-ANS)) is used as a reporter of protein unfolding to measure the protein melting temperature (T
m). Variations in the fluorescence yield upon titration of small molecules with the protein resulted in poor melting curves at low gain while a high gain setting caused signal saturation leading to data loss.
Findings
Acquisition of data at multiple gains within a single experiment provided high-quality data for samples with both low and high fluorescence yields. The melting temperatures were measured for all the samples in one run, while avoiding loss of data due to signal saturation. This method was successfully used to measure the binding constant by titration of a small-molecule ligand with the target protein.
Conclusion
Protein thermal melt experiments using the Rotor-Gene Q instrument have been made feasible for samples that show variations in fluorescence yield. Furthermore, since protein melting is irreversible, using multiple gains in the same experiment prevented loss of sample and saved gain optimization time.
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40
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Two alternative multiplex PCRs for the identification of the seven species of anglerfish (Lophius spp.) using an end-point or a melting curve analysis real-time protocol. Food Chem 2015; 166:1-9. [DOI: 10.1016/j.foodchem.2014.06.014] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2013] [Revised: 01/31/2014] [Accepted: 06/05/2014] [Indexed: 12/12/2022]
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41
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Ressmann AK, García EG, Khlan D, Gaertner P, Mach RL, Krska R, Brunner K, Bica K. Fast and efficient extraction of DNA from meat and meat derived products using aqueous ionic liquid buffer systems. NEW J CHEM 2015. [DOI: 10.1039/c5nj00178a] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
We present a fast and efficient strategy for DNA extraction from meat based on aqueous-ionic liquid systems that could extract DNA in significantly higher yields compared to the pure phosphate buffer.
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Affiliation(s)
- Anna K. Ressmann
- Institute of Applied Synthetic Chemistry
- Vienna University of Technology
- 1060 Vienna
- Austria
| | - Eric González García
- Vienna University of Technology
- IFA-Tulln
- Center of Analytical Chemistry
- 3430 Tulln
- Austria
| | - Diana Khlan
- Institute of Applied Synthetic Chemistry
- Vienna University of Technology
- 1060 Vienna
- Austria
| | - Peter Gaertner
- Institute of Applied Synthetic Chemistry
- Vienna University of Technology
- 1060 Vienna
- Austria
| | - Robert L. Mach
- Vienna University of Technology
- Institute for Chemical Engineering
- 1060 Vienna
- Austria
| | - Rudolf Krska
- University of Natural Resources and Life Sciences
- Department IFA-Tulln
- 3430 Tulln
- Austria
| | - Kurt Brunner
- Vienna University of Technology
- IFA-Tulln
- Center of Analytical Chemistry
- 3430 Tulln
- Austria
| | - Katharina Bica
- Institute of Applied Synthetic Chemistry
- Vienna University of Technology
- 1060 Vienna
- Austria
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42
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Loop-Mediated Isothermal Amplification (LAMP) for the Detection of Horse Meat in Meat and Processed Meat Products. FOOD ANAL METHOD 2014. [DOI: 10.1007/s12161-014-0072-8] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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43
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Mašlej M, Golian J, Maršalková L. Determining the presence of chicken and turkey meat in selected meat products using realtime PCR method. POTRAVINARSTVO 2014. [DOI: 10.5219/393] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The one of the most convenient method for the identification of animal species in raw and processed meat products is the examination of DNA sequences. Real-Time PCR are particularly suitable because even small fragments of DNA formed during heat processing of the meat can be amplified and identified. TaqMan Real-Time PCR is a rapid, convenient and sensitive assay for meat identification. For chicken and turkey meat identification we were using species-specific primers and TaqMan probe designed on the mitochondrial cytochrome b. The intensity of the fluorescence signal has risen at a variety of different samples. We analysed sixteen the samples of turkey meat products and we found the incidence of chicken at nine samples in the range of the detection range of the reaction0.1 to 100%. Sample 8 fluorescence intensity exceeded the detection threshold in the 22.11 cycle (Cp = 22.11); Sample 6, (Cp = 23.19); Sample 1 in 27.08 cycle (Cp = 27.08); Sample 7 in 31,7 cycle (Cp = 31.7) and sample 5 in 32.32 cycle (Cp = 32.32). All Cp values for these samples fluorescence intensity exceeded the detection threshold in earlier cycles as sample the 100% turkey DNA. It follows that in the samples no. 8, 6, 1, 5, and 7 is in the range of chicken DNA detection range of the reaction, from 0.1 to 100%. Sample 11 in the cycle 27,08 (Cp = 27.08); Sample 10 in the cycle 27.8 (Cp = 27.8); sample 16 in 28.03 cycle (Cp = 28.03) and sample 13 in the cycle of 29.18 (Cp = 29.18). In recognition of the results of the monitoring of the content of chicken meat in meat products it is appropriate to further verification and testing detection kits used to work for possible use in practice since it has been found to be sufficient sensitivity and specificity to 30 cycle reaction.
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44
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Cheng X, He W, Huang F, Huang M, Zhou G. Multiplex real-time PCR for the identification and quantification of DNA from duck, pig and chicken in Chinese blood curds. Food Res Int 2014. [DOI: 10.1016/j.foodres.2014.01.047] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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45
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Kitpipit T, Sittichan K, Thanakiatkrai P. Direct-multiplex PCR assay for meat species identification in food products. Food Chem 2014; 163:77-82. [PMID: 24912698 DOI: 10.1016/j.foodchem.2014.04.062] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2013] [Revised: 04/02/2014] [Accepted: 04/13/2014] [Indexed: 11/29/2022]
Abstract
This is the first time that direct PCR - DNA amplification without prior DNA extraction - was successfully developed and fully validated for rapid and economical simultaneous identification of six commonly consumed meat species. To achieve this, six species-specific primers were selected from previous reports and newly designed from the mitochondrial cytochrome b (cyt b), cytochrome oxidase I (COI), and 12s rRNA gene. The assay generated PCR products of 100, 119, 133, 155, 253, and 311 bp for pork, lamb/mutton, chicken, ostrich meat, horsemeat and beef, respectively. Validation showed that the assay is robust, rapid, economical, reproducible, specific, and sensitive down to 12,500 mitochondrial copy (equating to seven fg). It could be used with a variety of raw meats and products, including highly degraded and processed food samples. This proposed method will be greatly beneficial to the consumers, food industry, and law enforcement.
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Affiliation(s)
- Thitika Kitpipit
- Forensic Science Program, Department of Applied Science, Faculty of Science, Prince of Songkla University, 90112, Thailand
| | - Kuangtiwa Sittichan
- Forensic Science Program, Department of Applied Science, Faculty of Science, Prince of Songkla University, 90112, Thailand
| | - Phuvadol Thanakiatkrai
- Forensic Science Program, Department of Applied Science, Faculty of Science, Prince of Songkla University, 90112, Thailand.
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Ali ME, Razzak MA, Hamid SBA. Multiplex PCR in Species Authentication: Probability and Prospects—A Review. FOOD ANAL METHOD 2014. [DOI: 10.1007/s12161-014-9844-4] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Kesmen Z, Güllüce A, Yilmaz MT, Yetiman AE, Yetim H. Taqman-Based Duplex Real-Time Polymerase Chain Reaction Approach for the Detection and Quantification of Donkey and Pork Adulterations in Raw and Heat-Processed Meats. INTERNATIONAL JOURNAL OF FOOD PROPERTIES 2013. [DOI: 10.1080/10942912.2012.654569] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Köppel R, Daniels M, Felderer N, Brünen-Nieweler C. Multiplex real-time PCR for the detection and quantification of DNA from duck, goose, chicken, turkey and pork. Eur Food Res Technol 2013. [DOI: 10.1007/s00217-013-1973-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Interlaboratory validation of two multiplex quantitative real-time PCR methods to determine species DNA of cow, sheep and goat as a measure of milk proportions in cheese. Eur Food Res Technol 2012. [DOI: 10.1007/s00217-012-1880-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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A nuclear DNA-based species determination and DNA quantification assay for common poultry species. Journal of Food Science and Technology 2012; 51:4060-5. [PMID: 25477681 DOI: 10.1007/s13197-012-0893-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 04/24/2012] [Accepted: 11/07/2012] [Indexed: 10/27/2022]
Abstract
DNA testing for food authentication and quality control requires sensitive species-specific quantification of nuclear DNA from complex and unknown biological sources. We have developed a multiplex assay based on TaqMan® real-time quantitative PCR (qPCR) for species-specific detection and quantification of chicken (Gallus gallus), duck (Anas platyrhynchos), and turkey (Meleagris gallopavo) nuclear DNA. The multiplex assay is able to accurately detect very low quantities of species-specific DNA from single or multispecies sample mixtures; its minimum effective quantification range is 5 to 50 pg of starting DNA material. In addition to its use in food fraudulence cases, we have validated the assay using simulated forensic sample conditions to demonstrate its utility in forensic investigations. Despite treatment with potent inhibitors such as hematin and humic acid, and degradation of template DNA by DNase, the assay was still able to robustly detect and quantify DNA from each of the three poultry species in mixed samples. The efficient species determination and accurate DNA quantification will help reduce fraudulent food labeling and facilitate downstream DNA analysis for genetic identification and traceability.
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