Cashew nut and other nut allergies can result in serious and sometimes life-threatening reactions. Linear and conformational epitopes within food allergens are important for immunoglobulin E (IgE) binding. Methods that disrupt allergen structure can lower IgE binding and lessen the likelihood of food allergy reactions. Previous structural and biochemical data have indicated that 2S albumins from tree nuts and peanuts are potent allergens, and that their structures are sensitive to strong reducing agents such as dithiothreitol. This study demonstrates that the generally regarded as safe (GRAS) compound sodium sulfite effectively disrupted the structure of the cashew 2S albumin, Ana o 3, in a temperature-dependent manner. This study also showed that sulfite is effective at disrupting the disulfide bond within the cashew legumin, Ana o 2. Immunoblotting and ELISA demonstrated that the binding of cashew proteins by rabbit IgG or IgE from cashew-allergic patients was markedly lowered following treatment with sodium sulfite and heating. The results indicate that incorporation of sodium sulfite, or other food grade reagents with similar redox potential, may be useful processing methods to lower or eliminate IgE binding to food allergens.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1021/jf501117p | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Interactions between protein Z and lycopene: A win-win scenario for both security and stability.
Int J Biol Macromol
January 2025
College of Food Science & Nutritional Engineering, China Agricultural University, Beijing Key Laboratory of Functional Food from Plant Resources, Beijing 100083, China. Electronic address:
Malt protein Z (PZ), the main albumin in malt endosperm, exhibits trypsin inhibitory activity and has the ability to bind fat-soluble active molecules. However, its potential utilization as a food ingredient necessitates an evaluation of its allergenicity. Lycopene has many functional activities, such as antioxidant and treatment or alleviation of various diseases, but its tendency to degrade easily hinders its effective utilization.
View Article and Find Full Text PDFEffect of Maillard reaction on the allergenicity of crude extract of Mactra quadrangularis.
Food Res Int
January 2025
College of Ocean Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen, Fujian 361021, China; Xiamen Ocean Vocational College, Xiamen, Fujian 361100, China. Electronic address:
Food allergy incidents resulting from the consumption of Mactra quadrangularis is frequently reported. Investigating the impact of the Maillard reaction on the allergenicity of M. quadrangularis allergens is beneficial for the development of hypoallergenic mollusks aquatic products.
View Article and Find Full Text PDFDietary Linolenic Acid Enhances IgE Binding to Bovine α-Lactalbumin/β-Lactoglobulin and Promotes KU812 Basophil Degranulation via Upregulation of the Lyn/Syk Pathway.
J Agric Food Chem
January 2025
State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China.
Milk proteins possess an abundance of free amino groups and exhibit diverse spatial structures. During food processing, these properties facilitate their interaction with hydrophobic ligands, such as linolenic acid. Exploring the IgE and IgG binding ability of linolenic acid-milk protein complexes at different temperatures, times, and molar ratios is crucial for controlling the allergenicity of milk proteins in food processing.
View Article and Find Full Text PDF[Mechanisms of allergen-specific immunotherapy].
Nihon Yakurigaku Zasshi
January 2025
Department of Allergy and Clinical Immunology, National Research Institute for Child Health and Development.
Allergen-specific immunotherapy (AIT) has been a longstanding treatment for allergic diseases. Historically, subcutaneous immunotherapy was the main approach, but with the development of sublingual preparations, which are associated with fewer systemic side effects, sublingual immunotherapy is gaining global popularity. In Japan, the approval of standardized sublingual immunotherapy preparations in 2014 has significantly accelerated its adoption.
View Article and Find Full Text PDFComparison of new secondgeneration H1 receptor blockers with some molecules; a study involving DFT, molecular docking, ADMET, biological target and activity.
BMC Chem
January 2025
Energy Systems Engineering Department, Engineering Faculty, Adana Alparslan Türkeş Science and Technology University, 01250, Adana, Türkiye.
Although the antiallergic properties of compounds such as CAPE, Melatonin, Curcumin, and Vitamin C have been poorly discussed by experimental studies, the antiallergic properties of these famous molecules have never been discussed with calculations. The histamine-1 receptor (H1R) belongs to the family of rhodopsin-like G-protein-coupled receptors expressed in cells that mediate allergies and other pathophysiological diseases. In this study, pharmacological activities of FDA-approved second generation H1 antihistamines (Levocetirizine, desloratadine and fexofenadine) and molecules such as CAPE, Melatonin, Curcumin, Vitamin C, ADMET (Absorption, Distribution, Metabolism, Excretion, Toxicity) profiles, density functional theory (DFT), molecular docking, biological targets and activities were compared by calculating.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!