1
|
Perga S, Biolatti C, Martini I, Rossi F, Benso A, Acutis PL, Bagnato A, Cognata D, Caroggio P, Peletto S, Modesto P. Application of Microsatellites to Trace the Dairy Products Back to the Farm of Origin. Foods 2023; 12:4131. [PMID: 38002189 PMCID: PMC10670529 DOI: 10.3390/foods12224131] [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: 10/19/2023] [Revised: 11/07/2023] [Accepted: 11/13/2023] [Indexed: 11/26/2023] Open
Abstract
The increasing number of food frauds, mainly targeting high quality products, is a rising concern among producers and authorities appointed to food controls. Therefore, the development or implementation of methods to reveal frauds is desired. The genetic traceability of traditional or high-quality dairy products (i.e., products of protected designation of origin, PDO) represents a challenging issue due to the technical problems that arise. The aim of the study was to set up a genetic tool for the origin traceability of dairy products. We investigated the use of Short Tandem Repeats (STRs) to assign milk and cheese to the corresponding producer. Two farms were included in the study, and the blood of the cows, bulk milk, and derived cheese were sampled monthly for one year. Twenty STRs were selected and Polymerase Chain Reactions for each locus were carried out. The results showed that bulk milk and derived cheese express an STR profile composed of a subset of STRs of the lactating animals. A bioinformatics tool was used for the exclusion analysis. The study allowed the identification of a panel of 20 markers useful for the traceability of milk and cheeses, and its effectiveness in the traceability of dairy products obtained from small producers was demonstrated.
Collapse
Affiliation(s)
- Simona Perga
- Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d’Aosta, 10154 Turin, Italy; (S.P.); (C.B.); (I.M.); (P.L.A.); (S.P.)
| | - Cristina Biolatti
- Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d’Aosta, 10154 Turin, Italy; (S.P.); (C.B.); (I.M.); (P.L.A.); (S.P.)
| | - Isabella Martini
- Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d’Aosta, 10154 Turin, Italy; (S.P.); (C.B.); (I.M.); (P.L.A.); (S.P.)
| | - Francesco Rossi
- Computer and Control Engineering Department, Polytechnic of Turin, 10100 Turin, Italy (A.B.)
| | - Alfredo Benso
- Computer and Control Engineering Department, Polytechnic of Turin, 10100 Turin, Italy (A.B.)
| | - Pier Luigi Acutis
- Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d’Aosta, 10154 Turin, Italy; (S.P.); (C.B.); (I.M.); (P.L.A.); (S.P.)
| | - Alessandro Bagnato
- Department of Veterinary and Animal Science, Università degli Studi di Milano, 26900 Lodi, Italy;
| | | | - Piero Caroggio
- Azienda Sanitaria Locale 1 Imperiese, 18100 Imperia, Italy;
| | - Simone Peletto
- Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d’Aosta, 10154 Turin, Italy; (S.P.); (C.B.); (I.M.); (P.L.A.); (S.P.)
| | - Paola Modesto
- Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d’Aosta, 10154 Turin, Italy; (S.P.); (C.B.); (I.M.); (P.L.A.); (S.P.)
| |
Collapse
|
2
|
Abedini A, Salimi M, Mazaheri Y, Sadighara P, Alizadeh Sani M, Assadpour E, Jafari SM. Assessment of cheese frauds, and relevant detection methods: A systematic review. Food Chem X 2023; 19:100825. [PMID: 37780280 PMCID: PMC10534187 DOI: 10.1016/j.fochx.2023.100825] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 07/28/2023] [Accepted: 08/02/2023] [Indexed: 10/03/2023] Open
Abstract
Dairy products are widely consumed in the world due to their nutritional and functional characteristics. This group of food products are consumed by all age groups due to their health-giving properties. One of these products is cheese which has a high price compared to other dairy products. Because of this, it can be prone to fraud all over the world. Fraud in food products threatens the world's food safety and can cause serious damage to human health. There are many concerns among food authorities in the world about the fraud of food products. FDA, WHO, and the European Commission provide different legislations and definitions for fraud. The purpose of this review is to identify the most susceptible cheese type for fraud and effective methods for evaluating fraud in all types of cheeses. For this, we examined the Web of Science, Scopus, PubMed, and ScienceDirect databases. Mozzarella cheese had the largest share among all cheeses in terms of adulteration due to its many uses. Also, the methods used to evaluate different types of cheese frauds were PCR, Spectrometry, stable isotope, image analysis, electrophoretic, ELISA, sensors, sensory analysis, near-infrared and NMR. The methods that were most used in detecting fraud were PCR and spectrometry methods. Also, the least used method was sensory evaluation.
Collapse
Affiliation(s)
- Amirhossein Abedini
- Students Scientific Research Center (SSRC), Tehran University of Medical Sciences, Tehran, Iran
- Division of Food Safety and Hygiene, Department of Environmental Health, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahla Salimi
- Student Research Committee, Department of Food Science and Technology, National Nutrition and Food Technology Research Institute, Faculty of Nutrition Science and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Yeganeh Mazaheri
- Division of Food Safety and Hygiene, Department of Environmental Health, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Parisa Sadighara
- Division of Food Safety and Hygiene, Department of Environmental Health, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahmood Alizadeh Sani
- Division of Food Safety and Hygiene, Department of Environmental Health, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Elham Assadpour
- Food Industry Research Co., Gorgan, Iran
- Food and Bio-Nanotech International Research Center (Fabiano), Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
| | - Seid Mahdi Jafari
- Department of Food Materials and Process Design Engineering, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
| |
Collapse
|
3
|
Wang Y, Teo E, Lin KJ, Wu Y, Chan JSH, Tan LK. Quantification of Pork, Chicken, Beef, and Sheep Contents in Meat Products Using Duplex Real-Time PCR. Foods 2023; 12:2971. [PMID: 37569240 PMCID: PMC10418471 DOI: 10.3390/foods12152971] [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: 06/07/2023] [Revised: 07/28/2023] [Accepted: 08/02/2023] [Indexed: 08/13/2023] Open
Abstract
Accurate methods for meat speciation and quantification are essential for ensuring the supply of safe and wholesome meat and composite products with animal origins to negate the potential associated hazards, aid classification of consignments at the import control system, and thwart food fraud committed for financial gain. To better enhance meat safety control and combat food fraud, this study developed two duplex real-time polymerase chain reaction (real-time PCR) systems specifically designed for chicken, pork, sheep, and beef, using single-copy, chromosomally encoded, species-specific gene sequences to accurately measure the content of each meat type in meat products. DNA extracted from the raw and boiled reference materials prepared in varying proportions (ranging from 1% to 75%) were used in the development of the duplex assay to derive calibration factors to determine the meat content in different meat products. The method was further validated using proficiency test samples and market monitoring samples. Our findings showed that this method exhibits high specificity and sensitivity, with a significant accuracy range of 0.14% to 24.07% in quantifying the four meat types in both raw and processed meat products. Validation results further confirmed the effectiveness of our method in accurately quantifying meat content. Thus, we have demonstrated the duplex qPCR assays as promising approaches for implementation in routine analysis to strengthen meat safety control systems and combat meat fraud, thereby safeguarding consumer health and trust in the meat industry.
Collapse
Affiliation(s)
- Yanwen Wang
- National Centre for Food Science, Singapore Food Agency, 7 International Business Park, Singapore 609919, Singapore; (Y.W.)
| | - Emily Teo
- National Centre for Food Science, Singapore Food Agency, 7 International Business Park, Singapore 609919, Singapore; (Y.W.)
| | - Kung Ju Lin
- National Centre for Food Science, Singapore Food Agency, 7 International Business Park, Singapore 609919, Singapore; (Y.W.)
| | - Yuansheng Wu
- National Centre for Food Science, Singapore Food Agency, 7 International Business Park, Singapore 609919, Singapore; (Y.W.)
| | - Joanne Sheot Harn Chan
- National Centre for Food Science, Singapore Food Agency, 7 International Business Park, Singapore 609919, Singapore; (Y.W.)
- Department of Food Science and Technology, National University of Singapore, S14 Level 5 Science Drive 2, Singapore 117542, Singapore
| | - Li Kiang Tan
- National Centre for Food Science, Singapore Food Agency, 7 International Business Park, Singapore 609919, Singapore; (Y.W.)
| |
Collapse
|
4
|
Baptista M, Domingues L. Mitochondrial DNA D-Loop Amplification and Sequencing for Species Differentiation in Milk. Methods Mol Biol 2023; 2967:173-180. [PMID: 37608111 DOI: 10.1007/978-1-0716-3358-8_14] [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] [Indexed: 08/24/2023]
Abstract
Adulteration of dairy products, mainly through the substitution of high-quality milk for lower-quality milk, results in the production of low-value products, raising health, social, and economic concerns. As such, the development of methods to ensure dairy products' safety and quality is of great concern for governments and consumers. Although several methods have been developed for species differentiation in dairy products, their application and the establishment of reliable molecular markers for authentication purposes still need to be improved. In this chapter, we describe a low-cost, sensitive, fast, and reliable PCR-based method for mitochondrial D-loop DNA amplification for efficient detection of cattle milk in binary mixtures with sheep milk, thereby allowing the authentication of processed dairy products.
Collapse
Affiliation(s)
- Marlene Baptista
- CEB-Centre of Biological Engineering, University of Minho, Braga, Portugal
| | - Lucília Domingues
- CEB-Centre of Biological Engineering, University of Minho, Braga, Portugal.
- LABBELS -Associate Laboratory, Braga, Portugal.
| |
Collapse
|
5
|
Mafra I, Honrado M, Amaral JS. Animal Species Authentication in Dairy Products. Foods 2022; 11:1124. [PMID: 35454711 PMCID: PMC9027536 DOI: 10.3390/foods11081124] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 04/06/2022] [Accepted: 04/11/2022] [Indexed: 02/01/2023] Open
Abstract
Milk is one of the most important nutritious foods, widely consumed worldwide, either in its natural form or via dairy products. Currently, several economic, health and ethical issues emphasize the need for a more frequent and rigorous quality control of dairy products and the importance of detecting adulterations in these products. For this reason, several conventional and advanced techniques have been proposed, aiming at detecting and quantifying eventual adulterations, preferentially in a rapid, cost-effective, easy to implement, sensitive and specific way. They have relied mostly on electrophoretic, chromatographic and immunoenzymatic techniques. More recently, mass spectrometry, spectroscopic methods (near infrared (NIR), mid infrared (MIR), nuclear magnetic resonance (NMR) and front face fluorescence coupled to chemometrics), DNA analysis (real-time PCR, high-resolution melting analysis, next generation sequencing and droplet digital PCR) and biosensors have been advanced as innovative tools for dairy product authentication. Milk substitution from high-valued species with lower-cost bovine milk is one of the most frequent adulteration practices. Therefore, this review intends to describe the most relevant developments regarding the current and advanced analytical methodologies applied to species authentication of milk and dairy products.
Collapse
Affiliation(s)
- Isabel Mafra
- REQUIMTE-LAQV, Faculdade de Farmácia, Universidade do Porto, 4050-313 Porto, Portugal
| | - Mónica Honrado
- CIMO, Instituto Politécnico de Bragança, 5300-253 Bragança, Portugal;
| | - Joana S. Amaral
- CIMO, Instituto Politécnico de Bragança, 5300-253 Bragança, Portugal;
| |
Collapse
|
6
|
Duplex droplet digital PCR (ddPCR) method for the quantification of common wheat (Triticum aestivum) in spelt (Triticum spelta). Food Control 2021. [DOI: 10.1016/j.foodcont.2021.108382] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
7
|
Identification of Mammalian and Poultry Species in Food and Pet Food Samples Using 16S rDNA Metabarcoding. Foods 2021; 10:foods10112875. [PMID: 34829156 PMCID: PMC8620145 DOI: 10.3390/foods10112875] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 11/12/2021] [Accepted: 11/15/2021] [Indexed: 12/14/2022] Open
Abstract
The substitution of more appreciated animal species by animal species of lower commercial value is a common type of meat product adulteration. DNA metabarcoding, the combination of DNA barcoding with next-generation sequencing (NGS), plays an increasing role in food authentication. In the present study, we investigated the applicability of a DNA metabarcoding method for routine analysis of mammalian and poultry species in food and pet food products. We analyzed a total of 104 samples (25 reference samples, 56 food products and 23 pet food products) by DNA metabarcoding and by using a commercial DNA array and/or by real-time PCR. The qualitative and quantitative results obtained by the DNA metabarcoding method were in line with those obtained by PCR. Results from the independent analysis of a subset of seven reference samples in two laboratories demonstrate the robustness and reproducibility of the DNA metabarcoding method. DNA metabarcoding is particularly suitable for detecting unexpected species ignored by targeted methods such as real-time PCR and can also be an attractive alternative with respect to the expenses as indicated by current data from the cost accounting of the AGES laboratory. Our results for the commercial samples show that in addition to food products, DNA metabarcoding is particularly applicable to pet food products, which frequently contain multiple animal species and are also highly prone to adulteration as indicated by the high portion of analyzed pet food products containing undeclared species.
Collapse
|
8
|
Baptista M, Cunha JT, Domingues L. DNA-based approaches for dairy products authentication: A review and perspectives. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.01.043] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
|
9
|
Bougadi ET, Kalogianni DP. Paper-based DNA biosensor for food authenticity testing. Food Chem 2020; 322:126758. [PMID: 32283372 DOI: 10.1016/j.foodchem.2020.126758] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Revised: 11/13/2019] [Accepted: 04/05/2020] [Indexed: 11/16/2022]
Abstract
A paper-based DNA biosensor was developed for food authenticity testing using dairy products as a model. DNA from milk-based samples was isolated, and species-specific DNA sequences were amplified and identified by the biosensor using specific DNA probes. The properties of gold nanoparticles were exploited for visual detection. The biosensor was applied for detection of three species, namely cow, sheep and goat, while as low as 1.6 fmol for cow and goat, and 3.1 fmol for sheep PCR product were detected. Moreover, adulteration down to 0.01% could be detected, based on binary mixtures of cows', ewes' and goats' milk yogurt, containing 0.01 to 5% of cows' yogurt in ewes' and goats' yogurts, respectively. The proposed paper-based DNA biosensor offered 10 times higher detectability than other methods, good specificity and reproducibility, and could be applied easily for the detection of other adulterated food products, such as meat, olive oil and legumes.
Collapse
Affiliation(s)
- Eleni Th Bougadi
- Department of Chemistry, University of Patras, Patras 26504, Greece
| | | |
Collapse
|
10
|
Villa C, Costa J, Oliveira MBP, Mafra I. Cow's milk allergens: Screening gene markers for the detection of milk ingredients in complex meat products. Food Control 2020. [DOI: 10.1016/j.foodcont.2019.106823] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
|
11
|
|
12
|
Fekete T, Šnirc M, Belej Ľ, Židek R, Golian J, Haščík P, Zeleňáková L, Zajác P. Authentication of caprine milk and cheese by commercial qPCR assay. POTRAVINARSTVO 2017. [DOI: 10.5219/780] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The objective of the study was to investigate potential adulteration of commercial caprine milks and cheeses with bovine milk using commercial qPCR assay. The assay comprised of bovine-, ovine- and caprine-specific primers and TaqMan probe and mammalian internal control. Specificity, sensitivity, linearity, reproducibility and efficiency of the bovine assay were tested as well. Specificity was verified by running reaction on the DNA of other milk-producing species (caprine and ovine) and made-up bovine-caprine (v/v) milk mixes. In both experiments, a bovine DNA fragment was amplified whereas no amplification was obtained from the other species. Sensitivity, linearity, reproducibility and efficiency were tested on 10-fold dilution series of 10 ng bovine DNA. The assay has shown good linearity (R2 = 0.983) within whole range, with efficiency of 86% and excellent reproducibility (SD around the CT for the technical replicates <0.5). The sensitivity was adequate, as calculated LOD and LOQ were 1.44 pg and 2.94 pg of bovine DNA, respectively. Finally, the assay was used to authenticate 5 caprine milk samples and 5 caprine cheese samples, purchased from local supermarkets. Totally, 1 milk sample has shown the fluorescence signal, which exceeded baseline in cycle 39.01 ±0.69. However, the signal was above LOD and LOQ suggesting that there could not be unambiguously declared any adulteration with bovine milk. Amplification of bovine-specific DNA was not observed in the other samples indicating products were not adulterated. The commercial qPCR assay has proved that real-time PCR assays, as well as DNA-based techniques in a general, are the excellent and reliable tools for fighting with frauds in the food industry and protecting the public health.
Collapse
|
13
|
Agrimonti C, Bottari B, Sardaro MLS, Marmiroli N. Application of real-time PCR (qPCR) for characterization of microbial populations and type of milk in dairy food products. Crit Rev Food Sci Nutr 2017; 59:423-442. [DOI: 10.1080/10408398.2017.1375893] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Caterina Agrimonti
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parma, Italy
| | - Benedetta Bottari
- Department of Food and Drug Science, University of Parma, Parma, Italy
| | - Maria Luisa Savo Sardaro
- Department of Food and Drug Science, University of Parma, Parma, Italy; Department of Nutrition and Gastronomy, University San Raffaele Roma Srl, Rome, Italy
| | - Nelson Marmiroli
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parma, Italy
| |
Collapse
|
14
|
Šnirc M, Fekete T, Belej Ľ, Židek R, Golian J, Haščík P, Zajác P, Čapla J. Detection of ovine milk adulteration using taqman real-time pcr assay. POTRAVINARSTVO 2017. [DOI: 10.5219/782] [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
Food safety, quality and composition have become the subjects of increasing public concern. To prevent fraud and enhance quality assurance, credible analysis of dairy products is crucial. Bovine milk is more widely available and cheaper than milk of sheep and goat. Bovine milk is also processed in large quantities to produce a range of dairy produce. DNA-based methods have proven to be more reliable, because of the stability of DNA under the conditions of high temperature, high pressure, and chemical treatment used during the processing of some food products. The commercial InnuDETECT cheese assay based on the principle TaqMan real-time PCR systems have been tested for the identification and quantification of bovine DNA in ovine milk samples. DNA was extracted using the InnuPREP DNA Mini Kit and quantified by the QuantiFluor dsDNA system. The assay showed good linearity, with correlation coefficient of R2 = 0.983 and efficiency of 86%. The internal control amplified fragment from different mammalian species (cow, sheep and goat), with similar CT values. Detection of bovine DNA in milk mixtures was achieved even in samples containing 0.5% of bovine milk. The InnuDETECT cheese assay has been successfully used to measure bovine DNA in ovine milk, and will prove useful for bovine species identification and quantitative authentication of animal-derived products.
Collapse
|
15
|
A sensitive DNA-based fluorometric method for milk authenticity of dairy products based on spectrally distinct microspheres. Eur Food Res Technol 2017. [DOI: 10.1007/s00217-017-2882-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
|
16
|
A multiplex real-time PCR method for the quantitative determination of equine (horse) fractions in meat products. Food Control 2017. [DOI: 10.1016/j.foodcont.2016.11.035] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
17
|
Di Domenico M, Di Giuseppe M, Wicochea Rodríguez JD, Cammà C. Validation of a fast real-time PCR method to detect fraud and mislabeling in milk and dairy products. J Dairy Sci 2016; 100:106-112. [PMID: 27865504 DOI: 10.3168/jds.2016-11695] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2016] [Accepted: 09/23/2016] [Indexed: 11/19/2022]
Abstract
Fast real-time PCR TaqMan assays were developed and validated for species identification in dairy products. Based on the amplification of 12S rRNA and cytB partial genes of mitochondrial DNA, the methods were demonstrated to be sensitive, fast, and species-specific for Bos taurus, Ovis aries, Bubalus bubalis, and Capra hircus. The limit of detection calculated was lower than 1%, and the efficiency was reported to be higher than 96% in every assay. An internal amplification control was used to detect possible false negatives. The method was validated by means of laboratory-prepared samples mixing different species. Moreover, 18 commercial dairy samples were analyzed by both real-time PCR and isoelectric focusing, the official European Union reference method. The 4 TaqMan assays were confirmed to be a useful tool for milk and dairy product authentication.
Collapse
Affiliation(s)
- M Di Domenico
- Ricerca e Sviluppo Biotecnologie, Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise "G. Caporale", Via Campo Boario, 64100 Teramo, Italy.
| | - M Di Giuseppe
- Ricerca e Sviluppo Biotecnologie, Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise "G. Caporale", Via Campo Boario, 64100 Teramo, Italy
| | - J D Wicochea Rodríguez
- Ricerca e Sviluppo Biotecnologie, Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise "G. Caporale", Via Campo Boario, 64100 Teramo, Italy
| | - C Cammà
- Ricerca e Sviluppo Biotecnologie, Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise "G. Caporale", Via Campo Boario, 64100 Teramo, Italy
| |
Collapse
|
18
|
Klančnik A, Toplak N, Kovač M, Ogrinc N, Jeršek B. Robust PCR-based method for quantification of bovine milk in cheeses made from caprine and ovine milk. INT J DAIRY TECHNOL 2015. [DOI: 10.1111/1471-0307.12287] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Anja Klančnik
- Department of Food Science and Technology; Biotechnical Faculty; University of Ljubljana; Jamnikarjeva 101 SI-1000 Ljubljana Slovenia
| | - Nataša Toplak
- Omega d.o.o.; Dolinškova 8 SI-1000 Ljubljana Slovenia
| | - Minka Kovač
- Omega d.o.o.; Dolinškova 8 SI-1000 Ljubljana Slovenia
| | - Nives Ogrinc
- Department of Environmental Sciences; Jožef Stefan Institute; Jamova 39 SI-1000 Ljubljana Slovenia
| | - Barbara Jeršek
- Department of Food Science and Technology; Biotechnical Faculty; University of Ljubljana; Jamnikarjeva 101 SI-1000 Ljubljana Slovenia
| |
Collapse
|
19
|
Iwobi A, Sebah D, Kraemer I, Losher C, Fischer G, Busch U, Huber I. A multiplex real-time PCR method for the quantification of beef and pork fractions in minced meat. Food Chem 2015; 169:305-13. [DOI: 10.1016/j.foodchem.2014.07.139] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2013] [Revised: 07/01/2014] [Accepted: 07/30/2014] [Indexed: 11/24/2022]
|
20
|
Geng QR. A duplex polymerase chain reaction assay for the identification of goat cashmere and sheep wool. Mitochondrial DNA A DNA Mapp Seq Anal 2014; 27:1808-11. [PMID: 25259446 DOI: 10.3109/19401736.2014.963823] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
In this article attempts were made to establish one-step duplex PCR assay for the identification of goat cashmere and sheep wool. Primers were selected from published papers or designed in the well-conserved region of mitochondrial D-loop genes after alignment of the available sequences in the GenBank database. A fragment of 294 bp from cashmere goat was amplified and three PCR fragments including a bright main band of approximately 404 bp in length were obtained from sheep. The duplex PCR was found to be effective in detecting mixed samples precisely when sheep wool was mixed to goat cashmere with the relative proportion of over 9.09%. The duplex PCR could be considered as a simple and promising method in identification of goat cashmere and sheep wool.
Collapse
Affiliation(s)
- Qing-Rong Geng
- a College of Life Science and Technology, Yancheng Teachers University , Yancheng , Jiangsu Province , P.R China
| |
Collapse
|