Herein is reported a method for producing an antibody comprising the steps of forming an antibody-antibody light chain affinity ligand complex, wherein the antibody light chain affinity ligand is immobilized on a solid phase, by applying a solution comprising the antibody to the immobilized antibody light chain affinity ligand, and incubating the complex formed in the previous step with one or more enzymes to modify the glycosylation of the antibody, thereby producing the antibody.本發明揭示一種用於產生抗體之方法,該方法包含以下步驟:形成抗體-抗體輕鏈親和配位體複合物,其中該抗體輕鏈親和配位體固定在固相上,藉由將包含該抗體之溶液施加至已固定之抗體輕鏈親和配位體,及將前一步驟所形成之複合物與一或多種酶一起培育,以修飾該抗體之糖基化,由此產生該抗體。