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Research Progress on Shrimp Allergens and Allergenicity Reduction Methods.

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Shrimp allergies are a growing concern. Processing techniques like high pressure and pepsin treatment significantly reduce shrimp allergenicity, paving the way for safer seafood products.

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Area of Science:

  • Food Science
  • Allergology
  • Biochemistry

Background:

  • Shrimp consumption is popular globally, but increasing allergic reactions pose significant food safety and health risks.
  • Major shrimp allergens include tropomyosin (TM), arginine kinase, and others, with no current effective treatments beyond avoidance.
  • Developing technologies to reduce shrimp allergen sensitization is crucial for hypoallergenic product innovation.

Purpose of the Study:

  • To review the structure and biochemical properties of key shrimp allergens.
  • To evaluate the impact of various processing methods on shrimp allergenicity.
  • To provide insights for developing hypoallergenic or desensitized seafood.

Main Methods:

  • Analysis of major shrimp allergenic proteins' structures and biochemical characteristics.
  • Assessment of physical (e.g., high pressure), chemical (e.g., pepsin), biological, and combined processing methods.
  • Quantification of changes in immunoglobulin E (IgE) binding rates and recognition rates post-treatment.

Main Results:

  • High-pressure treatment (500 MPa, 55 °C, 10 min) reduced TM IgE binding by 73.59%.
  • Pepsin treatment (30 μg/mL, pH 2, 2 h) decreased TM IgE recognition by an average of 89.4%.
  • Various processing techniques demonstrate significant reductions in the allergenicity of shrimp proteins.

Conclusions:

  • Processing methods significantly alter shrimp allergen structures and reduce IgE binding.
  • Physical, chemical, and biological treatments offer viable strategies for reducing shrimp allergenicity.
  • These findings support the development of hypoallergenic shrimp products and desensitized foods.