Oxidation induced by dielectric barrier discharge (DBD) plasma treatment reduces IgG/IgE binding capacity and improves the functionality of glycinin

•Reduction antigenicity of glycinin (91.64% for IgG and 81.49% for IgE) was obtained.•Antigenicity elimination of glycinin was related to plasma-induced structural changes.•An increase in the solubility from 10.78 ± 0.35% to 65.96 ± 1.86% was achieved.•The emulsifying ability was increased from 21.08 ± 2.64 to 160.29 ± 4.12 m2/g.