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Cau S, Tilocca M, Spanu C, Soro B, Tedde T, Salza S, Melillo R, Piras G, Virgilio S, Vodret B, Mudadu A. Detection of celery (Apium graveolens) allergen in foods of animal and plant origin by droplet digital PCR assay. Food Control 2021. [DOI: 10.1016/j.foodcont.2021.108407] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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Perez M, Domínguez-López I, López-Yerena A, Vallverdú Queralt A. Current strategies to guarantee the authenticity of coffee. Crit Rev Food Sci Nutr 2021; 63:539-554. [PMID: 34278907 DOI: 10.1080/10408398.2021.1951651] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
As they become more health conscious, consumers are paying increasing attention to food quality and safety. In coffee production, fraudulent strategies to reduce costs and maximize profits include mixing beans from two species of different economic value, the addition of other substances and/or foods, and mislabeling. Therefore, testing for coffee authenticity and detecting adulterants is required for value assessment and consumer protection. Here we provide an overview of the chromatography, spectroscopy, and single-nucleotide polymorphism-based methods used to distinguish between the major coffee species Arabica and Robusta. This review also describes the techniques applied to trace the geographical origin of coffee, based mainly on the chemical composition of the beans, an approach that can discriminate between coffee-growing regions on a continental or more local level. Finally, the analytical techniques used to detect coffee adulteration with other foods and/or coffee by-products are discussed, with a look at the practice of adding pharmacologically active compounds to coffee, and their harmful effects on health.
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Affiliation(s)
- Maria Perez
- Department of Nutrition, Food Science and Gastronomy XaRTA, Institute of Nutrition and Food Safety (INSA-UB), Faculty of Pharmacy and Food Sciences, University of Barcelona, Barcelona, Spain.,Laboratory of Organic Chemistry, Faculty of Pharmacy and Food Sciences, University of Barcelona, Spain
| | - Inés Domínguez-López
- Department of Nutrition, Food Science and Gastronomy XaRTA, Institute of Nutrition and Food Safety (INSA-UB), Faculty of Pharmacy and Food Sciences, University of Barcelona, Barcelona, Spain
| | - Anallely López-Yerena
- Department of Nutrition, Food Science and Gastronomy XaRTA, Institute of Nutrition and Food Safety (INSA-UB), Faculty of Pharmacy and Food Sciences, University of Barcelona, Barcelona, Spain
| | - Anna Vallverdú Queralt
- Department of Nutrition, Food Science and Gastronomy XaRTA, Institute of Nutrition and Food Safety (INSA-UB), Faculty of Pharmacy and Food Sciences, University of Barcelona, Barcelona, Spain.,Consorcio CIBER, M.P. Fisiopatología de la Obesidad y la Nutrición (CIBERObn), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
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Kang TS. Basic principles for developing real-time PCR methods used in food analysis: A review. Trends Food Sci Technol 2019. [DOI: 10.1016/j.tifs.2019.07.037] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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4
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Senyuva HZ, Jones IB, Sykes M, Baumgartner S. A critical review of the specifications and performance of antibody and DNA-based methods for detection and quantification of allergens in foods. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2019; 36:507-547. [PMID: 30856064 DOI: 10.1080/19440049.2019.1579927] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Despite the availability of a large number of antibody and DNA based methods for detection and quantification of allergens in food there remain significant difficulties in selecting the optimum technique to employ. Published methods from research groups mostly contain sufficient detail concerning target antigen, calibration procedures and method performance to allow replication by others. However, routine allergen testing by the food industry relies upon commercialised test kits and frequently the suppliers provide disappointingly little specification detail on the grounds that this is proprietary information. In this review we have made a critical assessment of the published literature describing the performance of both commercial and non-commercial test kits for food allergens over the period 2008-2018. Mass spectrometric methods, which have the potential to become reference methods for allergens, are not covered in this review. Available information on the specifications of commercial ELISA and LFD test kits are tabulated for milk, egg and peanut allergens, where possible linking to publications concerning collaborative studies and proficiency testing. For a number of commercial PCR test kits, specifications provided by manufacturers for detection of a small selection of allergen are tabulated. In conclusion we support the views of others of the critical need for allergen reference materials as the way forward to improve the comparability of different testing strategies in foods.
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Affiliation(s)
| | - Ivona Baricevic Jones
- b Institute of Inflammation and Repair , Manchester Institute of Biotechnology , Manchester , UK
| | - Mark Sykes
- c Fera Science Ltd , National Agri-Food Innovation Campus Sand Hutton , York , UK
| | - Sabine Baumgartner
- d Dept. IFA-Tulln, Center for Analytical Chemistry , BOKU Vienna , Tulln , Austria
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Liao J, Liu Y, Ku T, Liu M, Huang Y. Qualitative and quantitative identification of adulteration of milk powder using DNA extracted with a novel method. J Dairy Sci 2017; 100:1657-1663. [DOI: 10.3168/jds.2016-11900] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Accepted: 11/16/2016] [Indexed: 11/19/2022]
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Molecular Identification of Economically Motivated Adulteration of Red Pepper Powder by Species-Specific PCR of Nuclear rDNA-ITS Regions in Garlic and Onion. FOOD ANAL METHOD 2016. [DOI: 10.1007/s12161-016-0519-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Sensitive and specific detection of pine nut (Pinus spp.) by real-time PCR in complex food products. Food Chem 2016; 194:980-5. [DOI: 10.1016/j.foodchem.2015.08.114] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2015] [Revised: 08/27/2015] [Accepted: 08/27/2015] [Indexed: 11/22/2022]
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Using Real-Time PCR as a tool for monitoring the authenticity of commercial coffees. Food Chem 2015; 199:433-8. [PMID: 26775992 DOI: 10.1016/j.foodchem.2015.12.045] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2014] [Revised: 09/12/2015] [Accepted: 12/09/2015] [Indexed: 11/23/2022]
Abstract
Coffee is one of the main food products commercialized in the world. Its considerable market value among food products makes it susceptible to adulteration, especially with cereals. Therefore, the objective of this study was to develop a method based on Real-Time Polymerase Chain Reaction (PCR) for detection of cereals in commercial ground roast and soluble coffees. After comparison with standard curves obtained by serial dilution of DNA extracted from barley, corn and rice, the method was sensitive and specific to quantify down to 0.6 pg, 14 pg and 16 pg of barley, corn and rice DNA, respectively. To verify the applicability of the method, 30 commercial samples obtained in different countries were evaluated and those classified as gourmets or superior did not present the tested cereals DNA. However, barley was detected in various traditional (cheaper) samples from South America. In addition, corn and rice were also detected in different samples. Real-Time PCR showed to be suitable for detection of food adulterants in commercial ground roast and soluble coffees.
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Jaiswal L, Rakkit S, Pochin K, Jaisamut P, Tanthana C, Tanmanee N, Srichana T, Suedee R. A thalidomide templated molecularly imprinted polymer that promotes a biologically active chiral entity tagged in colon carcinoma cells and protein-related immune activation. Process Biochem 2015. [DOI: 10.1016/j.procbio.2015.09.016] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Palle-Reisch M, Hochegger R, Cichna-Markl M. Development and validation of a triplex real-time PCR assay for the simultaneous detection of three mustard species and three celery varieties in food. Food Chem 2015; 184:46-56. [DOI: 10.1016/j.foodchem.2015.03.049] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2014] [Revised: 03/08/2015] [Accepted: 03/14/2015] [Indexed: 10/23/2022]
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Detection of peanut (Arachis hypogaea) allergen by Real-time PCR method with internal amplification control. Food Chem 2015; 174:547-52. [DOI: 10.1016/j.foodchem.2014.11.091] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2014] [Revised: 06/23/2014] [Accepted: 11/16/2014] [Indexed: 11/19/2022]
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Prado M, Ortea I, Vial S, Rivas J, Calo-Mata P, Barros-Velázquez J. Advanced DNA- and Protein-based Methods for the Detection and Investigation of Food Allergens. Crit Rev Food Sci Nutr 2015; 56:2511-2542. [DOI: 10.1080/10408398.2013.873767] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Luber F, Demmel A, Pankofer K, Busch U, Engel KH. Simultaneous quantification of the food allergens soy bean, celery, white mustard and brown mustard via combination of tetraplex real-time PCR and standard addition. Food Control 2015. [DOI: 10.1016/j.foodcont.2014.06.047] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Cucu T, Jacxsens L, De Meulenaer B. Analysis to support allergen risk management: Which way to go? JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2013; 61:5624-5633. [PMID: 23323855 DOI: 10.1021/jf303337z] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Food allergy represents an important food safety issue because of the potential lethal effects; the only effective treatment is the complete removal of the allergen involved from the diet. However, due to the growing complexity of food formulations and food processing, foods may be unintentionally contaminated via allergen-containing ingredients or cross-contamination. This affects not only consumers' well-being but also food producers and competent authorities involved in inspecting and auditing food companies. To address these issues, the food industry and control agencies rely on available analytical methods to quantify the amount of a particular allergic commodity in a food and thus to decide upon its safety. However, no "gold standard methods" exist for the quantitative detection of food allergens. Nowadays mostly receptor-based methods and in particular commercial kits are used in routine analysis. However, upon evaluation of their performances, commercial assays proved often to be unreliable in processed foods, attributed to the chemical changes in proteins that affect the molecular recognition with the receptor used. Unfortunately, the analytical outcome of other methods, among which are chromatographic combined with mass spectrometric techniques as well as DNA-based methods, seem to be affected in a comparable way by food processing. Several strategies can be employed to improve the quantitative analysis of allergens in foods. Nevertheless, issues related to extractability and matrix effects remain a permanent challenge. In view of the presented results, it is clear that the food industry needs to continue to make extra efforts to provide accurate labeling and to reduce the contamination with allergens to an acceptable level through the use of allergen risk management on a company level, which needs to be supported inevitably by a tailor-validated extraction and detection method.
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Affiliation(s)
- Tatiana Cucu
- NutriFOODchem Unit (member of Food2Know), Department of Food Safety and Food Quality, Ghent University , Coupure Links 653, B-9000 Gent, Belgium
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Fuchs M, Cichna-Markl M, Hochegger R. Development and validation of a duplex real-time PCR method for the simultaneous detection of celery and white mustard in food. Food Chem 2013; 141:229-35. [PMID: 23768352 DOI: 10.1016/j.foodchem.2013.02.088] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2011] [Revised: 07/18/2012] [Accepted: 02/21/2013] [Indexed: 11/15/2022]
Abstract
The developed duplex real-time PCR method allows the simultaneous detection of traces of potentially allergenic white mustard (Sinapis alba) and celery roots (Apium graveolens var. rapaceum), celery stalks (A. g. var. dulce) and leaf celery (A. g. var. secalinum). The duplex assay does not show any cross-reactivity with 64 different biological species, including various members of the Brassicaceae and Apiaceae family. In raw model sausages spiked with white mustard and celery roots, the LOD was found to be 0.001% white mustard and 0.005% celery. In model sausages brewed at 75-78°C for 15 min the LOD was found to be 0.005% white mustard and 0.005% celery. The duplex real-time PCR assay was applied to check if commercial food products are labelled in compliance with the legal regulations.
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Affiliation(s)
- Magdalena Fuchs
- Department of Analytical Chemistry, University of Vienna, Währinger Straße 38, 1090 Vienna, Austria
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