Pulsed ultraviolet light (PUV) that was applied to soy extracts from raw dehulled and de-fatted soybean led to a decrease in the level of glycinin and β-conglycinin using SDS-PAGE analysis. The IgE-binding was also reduced by 44% using ELISA. Another nonthermal processing step is controlled pressure drop (DIC), in which food is subjected to a short (1–3min) drop in pressure.