The promotion of covalent grafting of seven structurally distinct polyphenols to β-Lactoglobulin (β-LG) via cold plasma (CP) treatment, and their influence on functionalities and antigenicity of β-LG were systematically investigated. Results indicated that covalent β-LG-polyphenol conjugates were generated after undergoing 45 s of CP treatment, with the highest (135.49 ± 1.87 μmol/g) and lowest (2.56 ± 1.43 μmol/g) polyphenol content in β-LG-(−)-epigallocatechin gallate (β-LG-EGCG) and β-LG-syringic acid (β-LG-SA) conjugates...
