“…One of the universal methods used to stabilize beer is treatment with proteolytic enzymes as "chillproofing" agents during the conditioning stage.! l Various proteolytic enzymes have been examined, [3][4][5][6][7][8] but only a few proteolytic enzymes, such as papain, ficin and bromelin have been recognized as chillproofing enzymes. All these effective enzymes originate from plant materials.…”