Reduction of the allergenicity of soybean by treatment with proteases.

Soybeans were treated with proteases to reduce allergenicity. By immunoblotting with a monoclonal antibody against a major soybean allergen (Gly m Bd 30K), two of eight proteases so far tested were selected to achieve a reduction in allergenicity. Both antigenicity to the monoclonal antibody and allergenicity to the sera from soybean-sensitive patients proved to be markedly reduced by processing with either protease. Thus, soybeans treated with an appropriate protease may possibly be supplied as a hypoallergenic foodstuff for patients.

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