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Protein Quality and IgE-Binding in Ancient and Modern Wheat: An Analytical Study
Dorota Piasecka-Kwiatkowska1, Abhirami Remesan1, Piotr Klimowicz1
1Department of Food Biochemistry and Analysis, Poznan University of Life Sciences, 60-623 Poznan, Poland.
Foods (Basel, Switzerland)
|August 13, 2026
Summary
Ancient wheat varieties offer nutritional benefits but retain IgE-binding capacity, even after processing. Further assessment of protein quality and allergenicity is crucial for ancient and modern wheat products.
Area of Science:
- Food Science
- Nutrition
- Allergology
Background:
- Ancient wheat use is rising due to perceived health benefits and unique proteins.
- Limited data exists on ancient wheat protein quality and allergenicity post-processing.
Purpose of the Study:
- Evaluate protein content, amino acids, gliadin, and IgE-binding in ancient and modern wheat flours and pastas.
- Compare these properties across einkorn, emmer, Kamut, spelt, and common/durum wheats.
Main Methods:
- Kjeldahl method for protein content.
- UHPLC for amino acid analysis.
- ELISA for gliadin detection.
- Slot blot with allergic sera for IgE-binding.
Main Results:
- Wheat varieties differed significantly in protein, amino acids, gliadin, and IgE-binding.
- Spelt and Kamut had high protein; emmer, Kamut, and einkorn showed better essential amino acids than common wheat.
- Pasta processing reduced gliadin but not IgE-reactivity; Kamut pasta showed strong IgE-binding.
Conclusions:
- Ancient wheats may have nutritional advantages but do not necessarily reduce allergenicity.
- Processing alters gliadin but not IgE-binding capacity.
- Comprehensive evaluation of protein quality and IgE-binding is essential for all wheat products.
