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Zeng J, Ma F, Zhai L, Du C, Zhao J, Li Z, Wang J. Recent advance in sesame allergens: Influence of food processing and their detection methods. Food Chem 2024; 448:139058. [PMID: 38531299 DOI: 10.1016/j.foodchem.2024.139058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Revised: 03/14/2024] [Accepted: 03/15/2024] [Indexed: 03/28/2024]
Abstract
Sesame (Sesamum indicum L.) is a valuable oilseed crop with numerous nutritional benefits containing a diverse range of bioactive compounds. However, sesame is also considered an allergenic food that triggers various mild to severe adverse reactions (e.g., anaphylaxis). Strict dietary avoidance of sesame components is the best option to protect the sensitized consumers. Sesame or sesame-derived foods are always consumed after certain food processing operations, which would cause a considerable impact on the structure of sesame proteins, changing their sensitization capacity and detectability. In the review, the molecular structure properties, and immunological characteristics of the sesame allergens were described. Meanwhile, the influence of food processing techniques on sesame proteins and the relevant detection techniques used for the sesame allergens quantification are also emphasized critically. Hopefully, this review could provide valuable insight into the development and management for the new "Big Eight" sesame allergen in food industry.
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Affiliation(s)
- Jianhua Zeng
- School of Food Engineering, Anhui Provincial Key Laboratory of Functional Agriculture and Functional Foods, Associated Discipline Key Laboratory of Whole Grain Nutrition and High-Value Utilization, Anhui Science and Technology University, No.9, Donghua Road, Fengyang, Anhui Province 233100, China; College of Food Science and Engineering, Ocean University of China, No.5, Yushan Road, Qingdao, Shandong Province 266003, China
| | - Feifei Ma
- School of Food Engineering, Anhui Provincial Key Laboratory of Functional Agriculture and Functional Foods, Associated Discipline Key Laboratory of Whole Grain Nutrition and High-Value Utilization, Anhui Science and Technology University, No.9, Donghua Road, Fengyang, Anhui Province 233100, China; Nutrition and Bromatology Group, Department of Analytical and Food Chemistry, Faculty of Sciences, University of Vigo, Ourense 32004, Spain
| | - Ligong Zhai
- School of Food Engineering, Anhui Provincial Key Laboratory of Functional Agriculture and Functional Foods, Associated Discipline Key Laboratory of Whole Grain Nutrition and High-Value Utilization, Anhui Science and Technology University, No.9, Donghua Road, Fengyang, Anhui Province 233100, China
| | - Chuanlai Du
- School of Food Engineering, Anhui Provincial Key Laboratory of Functional Agriculture and Functional Foods, Associated Discipline Key Laboratory of Whole Grain Nutrition and High-Value Utilization, Anhui Science and Technology University, No.9, Donghua Road, Fengyang, Anhui Province 233100, China
| | - Jinlong Zhao
- School of Food Engineering, Anhui Provincial Key Laboratory of Functional Agriculture and Functional Foods, Associated Discipline Key Laboratory of Whole Grain Nutrition and High-Value Utilization, Anhui Science and Technology University, No.9, Donghua Road, Fengyang, Anhui Province 233100, China.
| | - Zhenxing Li
- College of Food Science and Engineering, Ocean University of China, No.5, Yushan Road, Qingdao, Shandong Province 266003, China
| | - Jin Wang
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, and Department of Nutrition and Food Hygiene, School of Public Health, Southeast University, No. 87 Dingjiaqiao Rd., Nanjing, Jiangsu Province 210009, China
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Cuadrado C, Arribas C, Sanchiz A, Pedrosa MM, Gamboa P, Betancor D, Blanco C, Cabanillas B, Linacero R. Effects of enzymatic hydrolysis combined with pressured heating on tree nut allergenicity. Food Chem 2024; 451:139433. [PMID: 38692238 DOI: 10.1016/j.foodchem.2024.139433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 04/15/2024] [Accepted: 04/19/2024] [Indexed: 05/03/2024]
Abstract
Hazelnut, pistachio and cashew are tree nuts with health benefits but also with allergenic properties being prevalent food allergens in Europe. The allergic characteristics of these tree nuts after processing combining heat, pressure and enzymatic digestion were analyzed through in vitro (Western blot and ELISA) and in vivo test (Prick-Prick). In the analyzed population, the patients sensitized to Cor a 8 (nsLTP) were predominant over those sensitized against hazelnut seed storage proteins (Sprot, Cor a 9 and 14), which displayed higher IgE reactivity. The protease E5 effectively hydrolyzed proteins from hazelnut and pistachio, while E7 was efficient for cashew protein hydrolysis. When combined with pressured heating (autoclave and Controlled Instantaneous Depressurization (DIC)), these proteases notably reduced the allergenic reactivity. The combination of DIC treatment before enzymatic digestion resulted in the most effective methodology to drastically reduce or indeed eliminate the allergenic capacity of tree nuts.
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Affiliation(s)
- Carmen Cuadrado
- Departamento de Tecnología de Alimentos, INIA-CSIC, Ctra. Coruña km 7.5, 28040 Madrid, Spain.
| | - Claudia Arribas
- Departamento de Tecnología de Alimentos, INIA-CSIC, Ctra. Coruña km 7.5, 28040 Madrid, Spain
| | - Africa Sanchiz
- Departamento de Tecnología de Alimentos, INIA-CSIC, Ctra. Coruña km 7.5, 28040 Madrid, Spain
| | - Mercedes M Pedrosa
- Departamento de Tecnología de Alimentos, INIA-CSIC, Ctra. Coruña km 7.5, 28040 Madrid, Spain
| | - Pedro Gamboa
- Servicio de Alergia, Hospital Universitario de Cruces, 48903 Barakaldo, Spain
| | - Diana Betancor
- Departamento de Alergia, IIS-Fundación Jiménez Diaz, 28040 Madrid, Spain
| | - Carlos Blanco
- Servicio de Alergia, IIS-Princesa (Instituto de Investigación Sanitaria Hospital Universitario de La Princesa), 28006 Madrid, Spain
| | - Beatriz Cabanillas
- Servicio de Alergia, Instituto de Investigación Hospital 12 de Octubre (i+12), Avenida de Córdoba s/n, 28041 Madrid, Spain
| | - Rosario Linacero
- Departamento de Genética, Microbiología y Fisiología, Facultad de Biología, Universidad Complutense de Madrid, 28040 Madrid, Spain
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3
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Koidl L, Gentile SA, Untersmayr E. Allergen Stability in Food Allergy: A Clinician's Perspective. Curr Allergy Asthma Rep 2023; 23:601-612. [PMID: 37665560 PMCID: PMC10506954 DOI: 10.1007/s11882-023-01107-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/16/2023] [Indexed: 09/05/2023]
Abstract
PURPOSE OF REVIEW The globally rising food allergy prevalence is associated with the urgent need for new disease prevention methods, efficient treatment, and reliable risk assessment methods for characterization of food allergens. Due to inter-individual variations in the digestive system, food allergens are degraded to a different extent in each person. Food processing also influences allergen digestion. RECENT FINDINGS In this review, we provide an overview of the digestive system with focus on relevance for food allergy. Main food proteins causing allergic reactions are evaluated, and the combined role of food processing and digestion for allergen stability is highlighted. Finally, clinical implications of this knowledge are discussed. Recent literature shows that allergen digestibility is dependent on food processing, digestive conditions, and food matrix. Digestion affects proteins allergenicity. It is currently not possible to predict the immunogenicity of allergens solely based on protein stability.
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Affiliation(s)
- Larissa Koidl
- Institute of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Waehringer Guertel 18-20, E3Q, 1090, Vienna, Austria
| | - Salvatore Alessio Gentile
- Institute of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Waehringer Guertel 18-20, E3Q, 1090, Vienna, Austria
| | - Eva Untersmayr
- Institute of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Waehringer Guertel 18-20, E3Q, 1090, Vienna, Austria.
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4
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Qin Z, Yu M, Zhao J, Huang Y, Zhu W, Lin H, Ahmed I, Li Z. A sensitive sandwich enzyme-linked immunosorbent assay (sELISA) for the detection of walnut residues in processed food. J Food Compost Anal 2023. [DOI: 10.1016/j.jfca.2023.105221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
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5
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Lu P, Wu H, Gu J, Nawaz MA, Ma X, Suleria HA. Impact of processing on bioaccessibility of phytochemicals in nuts. Food Reviews International 2022. [DOI: 10.1080/87559129.2022.2122990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- Peiyao Lu
- School of Agriculture and Food, Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, VIC, Australia
- Wuxi Food Safety Inspection and Test Center, Wuxi, Jiangsu, Province China
| | - Hanjing Wu
- School of Agriculture and Food, Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, VIC, Australia
| | - Jingyu Gu
- School of Agriculture and Food, Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, VIC, Australia
| | - Malik A. Nawaz
- Agriculture and Food, Commonwealth Scientific and Industrial Research Organisation (CSIRO), Werribee, Victoria, Australia
| | - Xueying Ma
- Wuxi Food Safety Inspection and Test Center, Wuxi, Jiangsu, Province China
| | - Hafiz A.R. Suleria
- School of Agriculture and Food, Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, VIC, Australia
- Centre for Chemistry and Biotechnology, School of Life and Environmental Sciences, Deakin University, Parkville, VIC, Australia
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Abstract
This review provides a global overview on Rosaceae allergy and details the particularities of each fruit allergy induced by ten Rosaceae species: almond/peach/cherry/apricot/plum (Amygdaleae), apple/pear (Maleae), and raspberry/blackberry/strawberry (Rosoideae). Data on clinical symptoms, prevalence, diagnosis, and immunotherapies for the treatment of Rosaceae allergy are herein stated. Allergen molecular characterization, cross-reactivity/co-sensitization phenomena, the impact of food processing and digestibility, and the methods currently available for the Rosaceae detection/quantification in foods are also described. Rosaceae allergy has a major impact in context to pollen-food allergy syndrome (PFAS) and lipid transfer protein (LTP) allergies, being greatly influenced by geography, environment, and presence of cofactors. Peach, apple, and almond allergies are probably the ones most affecting the quality of life of the allergic-patients, although allergies to other Rosaceae fruits cannot be overlooked. From patients' perspective, self-allergy management and an efficient avoidance of multiple fruits are often difficult to achieve, which might raise the risk for cross-reactivity and co-sensitization phenomena and increase the severity of the induced allergic responses with time. At this point, the absence of effective allergy diagnosis (lack of specific molecular markers) and studies advancing potential immunotherapies are some gaps that certainly will prompt the progress on novel strategies to manage Rosaceae food allergies.
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Affiliation(s)
- Joana Costa
- REQUIMTE-LAQV, Faculdade de Farmácia, Universidade do Porto, Porto, Portugal
| | - Isabel Mafra
- REQUIMTE-LAQV, Faculdade de Farmácia, Universidade do Porto, Porto, Portugal
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De Angelis E, Di Bona D, Pilolli R, Loiodice R, Luparelli A, Giliberti L, D’Uggento AM, Rossi MP, Macchia L, Monaci L. In Vivo and In Vitro Assessment and Proteomic Analysis of the Effectiveness of Physical Treatments in Reducing Allergenicity of Hazelnut Proteins. Nutrients 2022; 14:nu14040874. [PMID: 35215523 PMCID: PMC8875159 DOI: 10.3390/nu14040874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 02/07/2022] [Accepted: 02/17/2022] [Indexed: 12/10/2022] Open
Abstract
Hazelnut is a widespread nut species, especially present in Europe, that can be consumed raw or roasted thanks to its pleasant taste and nutritional properties. In addition to renowned beneficial properties hazelnuts contain several proteins capable of inducing food allergy in sensitized individuals, including Cor a 2 (a profilin), Cor a 8 (a lipid transfer protein), Cor a 9 (an 11S seed storage globulin, legumin-like), and Cor a 11 (a 7S seed storage globulin, vicilin-like). In the present paper we investigated the effectiveness of autoclave-based treatments in decreasing the allergic potential of hazelnut as assessed by submitting the treated material to an in vivo skin prick test and an in vitro immunoblot analysis, with sera of allergic individuals exposed to the treated food material. This preliminary analysis showed that autoclave treatment preceded by hydration and/or followed by drying seems to be a promising approach and appears to be effective in reducing the allergenicity of hazelnuts in most patients, probably due to the denaturation of most major and minor allergenic proteins. This work opens up the opportunity to produce hypoallergenic hazelnut derivatives that can be tolerated by allergic subjects.
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Affiliation(s)
- Elisabetta De Angelis
- Institute of Sciences of Food Production—National Research Council of Italy (ISPA-CNR), 70126 Bari, Italy; (E.D.A.); (R.P.); (A.L.)
| | - Danilo Di Bona
- Department of Emergency and Organ Transplantation (DETO), School and Chair of Allergology and Clinical Immunology, University of Bari Aldo Moro, 70124 Bari, Italy; (D.D.B.); (R.L.); (L.G.); (M.P.R.); (L.M.)
| | - Rosa Pilolli
- Institute of Sciences of Food Production—National Research Council of Italy (ISPA-CNR), 70126 Bari, Italy; (E.D.A.); (R.P.); (A.L.)
| | - Roberto Loiodice
- Department of Emergency and Organ Transplantation (DETO), School and Chair of Allergology and Clinical Immunology, University of Bari Aldo Moro, 70124 Bari, Italy; (D.D.B.); (R.L.); (L.G.); (M.P.R.); (L.M.)
| | - Anna Luparelli
- Institute of Sciences of Food Production—National Research Council of Italy (ISPA-CNR), 70126 Bari, Italy; (E.D.A.); (R.P.); (A.L.)
| | - Lucia Giliberti
- Department of Emergency and Organ Transplantation (DETO), School and Chair of Allergology and Clinical Immunology, University of Bari Aldo Moro, 70124 Bari, Italy; (D.D.B.); (R.L.); (L.G.); (M.P.R.); (L.M.)
| | - Angela M. D’Uggento
- Department of Economics and Finance, University of Bari Aldo Moro, 70124 Bari, Italy;
| | - Maria Pia Rossi
- Department of Emergency and Organ Transplantation (DETO), School and Chair of Allergology and Clinical Immunology, University of Bari Aldo Moro, 70124 Bari, Italy; (D.D.B.); (R.L.); (L.G.); (M.P.R.); (L.M.)
| | - Luigi Macchia
- Department of Emergency and Organ Transplantation (DETO), School and Chair of Allergology and Clinical Immunology, University of Bari Aldo Moro, 70124 Bari, Italy; (D.D.B.); (R.L.); (L.G.); (M.P.R.); (L.M.)
| | - Linda Monaci
- Institute of Sciences of Food Production—National Research Council of Italy (ISPA-CNR), 70126 Bari, Italy; (E.D.A.); (R.P.); (A.L.)
- Correspondence:
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8
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Cheng JH, Wang H, Sun DW. An overview of tropomyosin as an important seafood allergen: Structure, cross-reactivity, epitopes, allergenicity, and processing modifications. Compr Rev Food Sci Food Saf 2021; 21:127-147. [PMID: 34954871 DOI: 10.1111/1541-4337.12889] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 11/19/2021] [Accepted: 11/28/2021] [Indexed: 12/16/2022]
Abstract
Tropomyosin (TM) is a major allergen in crustaceans, which often causes allergy and is fatal to some consumers. Currently, the most effective treatment is to avoid ingesting TM, although most adverse events occur in accidental ingestion. In this review, the molecular characterization, epitopes, cross-reactivity, and pathogenesis of TM are introduced and elucidated. Modification of TM by traditional processing methods such as heat treatment and enzymatic hydrolysis, and innovative processing technologies including high-pressure treatment, cold plasma (CP), ultrasound, pulsed electric field (PEF), pulsed ultraviolet, microwave and irradiation are discussed in detail. Particularly, enzymolysis, PEF, and CP technologies show great potential for modifying TM and more studies are needed to verify their effectiveness for the seafood industry. Possible mechanisms and the advantages/disadvantages of these technologies for the mitigation of TM allergenicity are also highlighted. Further work should be conducted to investigate the allergenicity caused by protein segments such as epitopes, examine the interaction sites between the allergen and the processing techniques and reveal the reduction mechanism of allergenicity.
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Affiliation(s)
- Jun-Hu Cheng
- School of Food Science and Engineering, South China University of Technology, Guangzhou, China.,Academy of Contemporary Food Engineering, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou, China.,Engineering and Technological Research Centre of Guangdong Province on Intelligent Sensing and Process Control of Cold Chain Foods, & Guangdong Province Engineering Laboratory for Intelligent Cold Chain Logistics Equipment for Agricultural Products, Guangzhou Higher Education Mega Centre, Guangzhou, China
| | - Huifen Wang
- School of Food Science and Engineering, South China University of Technology, Guangzhou, China.,Academy of Contemporary Food Engineering, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou, China.,Engineering and Technological Research Centre of Guangdong Province on Intelligent Sensing and Process Control of Cold Chain Foods, & Guangdong Province Engineering Laboratory for Intelligent Cold Chain Logistics Equipment for Agricultural Products, Guangzhou Higher Education Mega Centre, Guangzhou, China
| | - Da-Wen Sun
- School of Food Science and Engineering, South China University of Technology, Guangzhou, China.,Academy of Contemporary Food Engineering, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou, China.,Engineering and Technological Research Centre of Guangdong Province on Intelligent Sensing and Process Control of Cold Chain Foods, & Guangdong Province Engineering Laboratory for Intelligent Cold Chain Logistics Equipment for Agricultural Products, Guangzhou Higher Education Mega Centre, Guangzhou, China.,Food Refrigeration and Computerized Food Technology (FRCFT), Agriculture and Food Science Centre, University College Dublin, National University of Ireland, Dublin, Belfield, Ireland
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9
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Kuźmiński A, Przybyszewski M, Przybyszewska J, Ukleja-Sokołowska N, Pałgan K, Bartuzi Z. Tree nut allergy. Postepy Dermatol Alergol 2021; 38:544-9. [PMID: 34658691 DOI: 10.5114/ada.2021.108894] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Accepted: 03/03/2021] [Indexed: 12/01/2022] Open
Abstract
From a botanical point of view, a nut is a kind of dry, closed, unbroken, single-seeded fruit, which has a ligneous pericarp made up of several fruiting bodies surrounded by one free semen. The term “allergy to tree nuts” includes allergies to almonds, Brazil nuts, cashew nuts, hazelnuts, chestnuts, macadamia nuts, pecan nuts, pistachios and walnuts. All tree nuts belong to five orders of plants: Rosaceae, Fagales, Sapindales, Ericales and Proteales. Allergies to tree nuts usually start in childhood, but unlike other food allergies, they rarely fade away and generally persist throughout life. They are one of the main causes of serious allergic reactions ending in death in both children and adults. The epidemiology of allergy to nuts is variable and depends mainly on the geographical zone and eating habits. In northern Europe, hazelnut allergy is prevalent, whereas in the USA the most common is allergy to peanuts and, when taking tree nuts into consideration, to walnuts. The diagnosis of allergies to nuts is difficult and requires the use of the most modern research tools including molecular diagnostic techniques.
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10
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Tsai W, Yin H, Lin Y, Liu H, Tseng C, Wen H. A rapid lateral flow assay using immunomagnetic nanoparticles for detecting mango allergen residues in processed foods. J Food Saf 2021. [DOI: 10.1111/jfs.12929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- Wen‐Che Tsai
- Department of Food Science and Biotechnology National Chung Hsing University Taichung Taiwan
| | - Hsin‐Yi Yin
- Department of Food Science and Biotechnology National Chung Hsing University Taichung Taiwan
- Food and Animal Product Safety Inspection Center National Chung Hsing University Taichung Taiwan
| | - Ya‐Ting Lin
- Department of Food Science and Biotechnology National Chung Hsing University Taichung Taiwan
| | - Hung‐Jen Liu
- Institute of Molecular Biology National Chung Hsing University Taichung Taiwan
- The iEGG and Animal Biotechnology Center National Chung Hsing University Taichung Taiwan
- Rong Hsing Research Center for Translational Medicine National Chung Hsing University Taichung Taiwan
- PhD Program in Translational Medicine National Chung Hsing University Taichung Taiwan
| | - Cheng‐Yen Tseng
- Department of Applied Chemistry Chaoyang University of Technology Taichung Taiwan
| | - Hsiao‐Wei Wen
- Department of Food Science and Biotechnology National Chung Hsing University Taichung Taiwan
- Food and Animal Product Safety Inspection Center National Chung Hsing University Taichung Taiwan
- Graduate Institute of Food Safety National Chung Hsing University Taichung Taiwan
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Burdějová L, Duša F, Strouhalová D, Moravcová D, Karásek P. Pressurized Water Extraction as a Tool for Rapid and Efficient Isolation of Proteins from Almonds. FOOD ANAL METHOD 2021. [DOI: 10.1007/s12161-021-02016-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Abstract
Nuts are considered healthy foods due to their high content of nutritional compounds with functional properties. However, the list of the most allergenic foods includes tree nuts, and their presence must be indicated on food labels. Most nut allergens are seed storage proteins, pathogenesis-related (PR) proteins, profilins and lipid transfer proteins (LTP). Nut allergenic proteins are characterized by their resistance to denaturation and proteolysis. Food processing has been proposed as the method of choice to alter the allergenicity of foods to ensure their safety and improve their organoleptic properties. The effect of processing on allergenicity is variable by abolishing existing epitopes or generating neoallergens. The alterations depend on the intrinsic characteristics of the protein and the type and duration of treatment. Many studies have evaluated the molecular changes induced by processes such as thermal, pressure or enzymatic treatments. As some processing treatments have been shown to decrease the allergenicity of certain foods, food processing may play an important role in developing hypoallergenic foods and using them for food tolerance induction. This work provides an updated overview of the applications and influence of several processing techniques (thermal, pressure and enzymatic digestion) on nut allergenicity for nuts, namely, hazelnuts, cashews, pistachios, almonds and walnuts.
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Sun X, Vivien Chua J, Le QA, Trujillo FJ, Oh MH, Campbell DE, Mehr S, Lee NA. A Response Surface Methodology (RSM) Approach for Optimizing the Attenuation of Human IgE-Reactivity to β-Lactoglobulin (β-Lg) by Hydrostatic High Pressure Processing. Foods 2021; 10:1741. [PMID: 34441519 DOI: 10.3390/foods10081741] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 07/22/2021] [Accepted: 07/23/2021] [Indexed: 12/02/2022] Open
Abstract
The response surface methodology (RSM) and central composite design (CCD) technique were used to optimize the three key process parameters (i.e., pressure, temperature and holding time) of the high-hydrostatic-pressure (HHP) processing either standalone or combined with moderate thermal processing to modulate molecular structures of β-lactoglobulin (β-Lg) and α-lactalbumin (α-La) with reduced human IgE-reactivity. The RSM model derived for HHP-induced molecular changes of β-Lg determined immunochemically showed that temperature (temp), pressure (p2) and the interaction between temperature and time (t) had statistically significant effects (p < 0.05). The optimal condition defined as minimum (β-Lg specific) IgG-binding derived from the model was 505 MPa at 56 °C with a holding time of 102 min (R2 of 0.81 and p-value of 0.01). The validation carried at the optimal condition and its surrounding region showed that the model to be underestimating the β-Lg structure modification. The molecular change of β-Lg was directly correlated with HHP-induced dimerization in this study, which followed a quadratic equation. The β-Lg dimers also resulted in the undetectable human IgE-binding.
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Sanchiz A, Sánchez-Enciso P, Cuadrado C, Linacero R. Detection of Peanut Allergen by Real-Time PCR: Looking for a Suitable Detection Marker as Affected by Processing. Foods 2021; 10:1421. [PMID: 34207461 DOI: 10.3390/foods10061421] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 06/07/2021] [Accepted: 06/15/2021] [Indexed: 12/23/2022] Open
Abstract
Peanut (Arachis hypogaea) contains allergenic proteins, which make it harmful to the sensitised population. The presence of peanut in foods must be indicated on label, to prevent accidental consumption by allergic population. In this work, we use chloroplast markers for specific detection of peanut by real-time PCR (Polymerase Chain Reaction), in order to increase the assay sensitivity. Binary mixtures of raw and processed peanut flour in wheat were performed at concentrations ranging from 100,000 to 0.1 mg/kg. DNA isolation from peanut, mixtures, and other legumes was carried out following three protocols for obtaining genomic and chloroplast-enrich DNA. Quantity and quality of DNA were evaluated, obtaining better results for protocol 2. Specificity and sensitivity of the method has been assayed with specific primers for three chloroplast markers (mat k, rpl16, and trnH-psbA) and Ara h 6 peanut allergen-coding region was selected as nuclear low-copy target and TaqMan probes. Efficiency and linear correlation of calibration curves were within the adequate ranges. Mat k chloroplast marker yielded the most sensitive and efficient detection for peanut. Moreover, detection of mat K in binary mixtures of processed samples was possible for up to 10 mg/kg even after boiling, and autoclave 121 °C 15 min, with acceptable efficiency and linear correlation. Applicability of the method has been assayed in several commercial food products.
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Kochanowski M, Różycki M, Dąbrowska J, Bełcik A, Karamon J, Sroka J, Cencek T. Proteomic and Bioinformatic Investigations of Heat-Treated Anisakis simplex Third-Stage Larvae. Biomolecules 2020; 10:E1066. [PMID: 32708775 PMCID: PMC7407331 DOI: 10.3390/biom10071066] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Revised: 07/10/2020] [Accepted: 07/13/2020] [Indexed: 02/08/2023] Open
Abstract
Anisakis simplex third-stage larvae are the main source of hidden allergens in marine fish products. Some Anisakis allergens are thermostable and, even highly processed, could cause hypersensitivity reactions. However, Anisakis proteome has not been studied under autoclaving conditions of 121 °C for 60 min, which is an important process in the food industry. The aim of the study was the identification and characterization of allergens, potential allergens, and other proteins of heat-treated A. simplex larvae. Liquid chromatography-tandem mass spectrometry (LC-MS/MS) was used to identify 470 proteins, including allergens-Ani s 1, Ani s 2, Ani s 3, Ani s 4, Ani s 5-and 13 potential allergens that were mainly homologs of Anisakis spp., Ascaris spp., and Acari allergens. Ani s 2, Ani s 3, Ani s 5, and three possible allergens were found among the top 25 most abundant proteins. The computational analysis allowed us to detect allergen epitopes, assign protein families, and domains as well as to annotate the localization of proteins. The predicted 3D models of proteins revealed similarities between potential allergens and homologous allergens. Despite the partial degradation of heated A. simplex antigens, their immunoreactivity with anti-A. simplex IgG antibodies was confirmed using a Western blot. In conclusion, identified epitopes of allergenic peptides highlighted that the occurrence of Anisakis proteins in thermally processed fish products could be a potential allergic hazard. Further studies are necessary to confirm the IgE immunoreactivity and thermostability of identified proteins.
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Affiliation(s)
- Maciej Kochanowski
- Department of Parasitology and Invasive Diseases, National Veterinary Research Institute, Partyzantów Avenue 57, 24-100 Puławy, Poland; (M.R.); (J.D.); (A.B.); (J.K.); (J.S.); (T.C.)
| | | | | | | | | | | | - Tomasz Cencek
- Department of Parasitology and Invasive Diseases, National Veterinary Research Institute, Partyzantów Avenue 57, 24-100 Puławy, Poland; (M.R.); (J.D.); (A.B.); (J.K.); (J.S.); (T.C.)
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Sanchiz A, Cuadrado C, Haddad J, Linacero R. Effect of Instant Controlled Pressure Drop (DIC) Treatment on the Detection of Nut Allergens by Real Time PCR. Foods 2020; 9:E729. [PMID: 32503109 PMCID: PMC7353585 DOI: 10.3390/foods9060729] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Revised: 05/16/2020] [Accepted: 05/19/2020] [Indexed: 11/23/2022] Open
Abstract
Tree nuts show nutritional properties and human health benefits. However, they contain allergenic proteins, which make them harmful to the sensitised population. The presence of tree nuts on food labelling is mandatory and, consequently, the development of suitable analytical methodologies to detect nuts in processed foods is advisable. Real-Time PCR allowed a specific and accurate amplification of allergen sequences. Some food processing methods could induce structural and/or conformational changes in proteins by altering their allergenic capacity, as well as produce the fragmentation and/or degradation of genomic DNA. In this work, we analysed by means of Real-Time PCR, the influence of pressure and thermal processing through Instant Controlled Pressure Drop (DIC) on the detectability of hazelnut, pistachio and cashew allergens. The detection of targets in hazelnut, pistachio and cashew (Cor a 9, Pis v 1 and Ana o 1, respectively) is affected by the treatment to different extents depending on the tree nut. Results are compared to those previously obtained by our group in the analysis of different treatments on the amplificability of the same targets. Reduction in amplificability is similar to that reported for some autoclave conditions. Our assays might allow for the detection of up to 1000 mg/kg of hazelnut, pistachio and cashew flours after being submitted to DIC treatment in food matrices.
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Affiliation(s)
- Africa Sanchiz
- Food Technology Department, SGIT-INIA, Ctra. La Coruña Km. 7.5, 28040 Madrid, Spain; (A.S.); (C.C.)
| | - Carmen Cuadrado
- Food Technology Department, SGIT-INIA, Ctra. La Coruña Km. 7.5, 28040 Madrid, Spain; (A.S.); (C.C.)
| | - Joseph Haddad
- Laboratory Engineering Science for Environment (UMR 7356 CNRS), La Rochelle University, Avenue Michel Crepeau, 17042 La Rochelle, France;
- Food Science and Technology Department, Faculty of Agriculture, Lebanese University, Dekweneh, 11111 Beirut, Lebanon
| | - Rosario Linacero
- Genetics, Physiology and Microbiology Department, Biology Faculty, Complutense University, 28040 Madrid, Spain
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