Ultrasound-assisted punicalagin binding effectively reduced soy 7S protein allergenicity through multiple pathways including reducing allergen-specific antibody binding, inhibiting mast cell degranulation, adjusting Th1/Th2 immune homeostasis, improving intestinal barrier integrity, and reshaping gut microbiota, while also enhancing functional properties.
Key Findings
Results
Ultrasound-assisted punicalagin (PUN) binding reduced soy 7S protein allergenicity by decreasing allergen-specific antibody binding capacity.
Both in vitro and in vivo experiments were used to confirm the reduction in allergenicity.
The treatment reduced the capacity of 7S protein to bind allergen-specific antibodies.
Ultrasound assistance was used to facilitate the binding of punicalagin to the 7S protein.
Results
Ultrasound-assisted punicalagin treatment inhibited mast cell degranulation associated with 7S protein allergenicity.
Mast cell degranulation is a key step in allergic responses and was measured as part of the in vitro assessment.
The treatment was shown to inhibit this degranulation process.
This represented one of multiple pathways by which allergenicity was reduced.
Results
Ultrasound-assisted punicalagin binding adjusted Th1/Th2 immune homeostasis in the context of 7S protein allergy.
Th1/Th2 immune balance is a critical marker of allergic immune response.
The treatment modulated this balance as confirmed through in vivo experiments.
This immune adjustment was identified as one of the multiple pathways reducing allergenicity.
Results
Ultrasound-assisted punicalagin treatment improved intestinal barrier integrity in animals sensitized to 7S protein.
Intestinal barrier integrity was assessed as part of the in vivo experimental component.
Improvement in intestinal barrier function was identified as one mechanism contributing to reduced allergenicity.
This finding was confirmed through in vivo experiments.
Results
Ultrasound-assisted punicalagin binding reshaped gut microbiota composition in relation to 7S protein allergy.
Gut microbiota composition was assessed as part of the in vivo experiments.
Reshaping of gut microbiota was identified as one of multiple pathways through which allergenicity was reduced.
This represents a mechanistic link between the treatment and immune modulation.
Results
Ultrasound-assisted punicalagin treatment enhanced the functional properties of soy 7S protein, including antioxidant activity, emulsifying performance, and foaming capacity.
Three functional properties were specifically improved: antioxidant activity, emulsifying performance, and foaming capacity.
These functional improvements occurred alongside the reduction in allergenicity.
The treatment thus provided dual benefits of reduced allergenicity and improved functional traits.
Conclusions
The use of punicalagin, a processing byproduct, in this treatment facilitates the reuse of processing byproducts.
Punicalagin is described as a processing byproduct that is utilized in this approach.
The authors highlight that this method facilitates the reuse of processing byproducts.
This adds value beyond allergenicity reduction by addressing sustainable use of food processing materials.
Xu Y, Shi J, Wang X, Wang T, Zhao Y, Yao Y, et al.. (2026). Investigation into the Allergenicity and Functional Properties of Soybean 7S Protein upon Ultrasound-Assisted Punicalagin Binding.. Journal of agricultural and food chemistry. https://doi.org/10.1021/acs.jafc.5c16746