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Decreased IgE-binding with Wheat Gluten by Deamidation.
N Maruyama1, F Sugiura2, T Kishimoto1
1a Research Institute for Food Science, Kyoto University.
Bioscience, Biotechnology, and Biochemistry
|July 10, 2016
Summary
Deamidating wheat gluten significantly reduces its allergic potential. This process modifies glutamine residues, making wheat proteins less reactive for individuals with wheat allergies.
Area of Science:
- Food science and allergy research.
- Protein chemistry and modification.
Background:
- Major wheat allergens possess numerous glutamine residues.
- Glutamine deamidation is a potential strategy for hypoallergenic protein production.
Purpose of the Study:
- To investigate the efficacy of acid-induced deamidation in reducing wheat allergenicity.
- To assess the impact of varying deamidation degrees on gluten's reactivity.
Main Methods:
- Gluten deamidation was performed using acidic conditions.
- Varying degrees of deamidation (30%, 50%, 90%) were achieved.
- Deamidated gluten samples were tested against sera from wheat-allergic patients.
Main Results:
- A significant decrease in reactivity was observed with increasing deamidation.
- The degree of deamidation directly correlated with reduced allergenicity.
- 90%-deamidated gluten showed the lowest reactivity.
Conclusions:
- Acid-induced deamidation is an effective method for producing hypoallergenic wheat proteins.
- The reduction in allergenicity is proportional to the extent of gluten deamidation.
- This approach offers a promising strategy for managing wheat allergies.
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