Laccase mediated conjugation of heat treated β-lactoglobulin and sugar beet pectin

► Laccase forms homo- & hetero-conjugates of BLG and SBP. ► Tyr in BLG and ferulic acid in SBP are preferred substrates. ► Hetero-conjugations were favored with SBP. ► Homo-conjugations were favored with L-SBP. ► Conjugates were more soluble at BLG pI.