SEARCH Articles Figures Tables Bowman-Birk protease barley rootlet dual function a-amylase/trypsin Cereal a amylase/trypsin inhibitor family Cereal a amylase/trypsin inhibitor family homologue Inter-a-trypsin inhibitor Trypsin Trypsin trypsinization Trypsin/a-amylase Trypsination Trypsinization