Immunoblot membranes for soybean testing using anti-trypsin inhibitor polyclonal antibody in denaturing (A,B) and native conditions (C,D) with hams (A,C) and sausages (B,D) commercial and in-house-made samples. Legend: lane 1, SPI; lane 2, SPC; lane 3, model pork cooked ham (0% of SPI) (negative control); lanes 4,5, pork cooked ham with 1% and 10% of SPI (positive control); lanes a–c, commercial pork cooked hams; lane d, model turkey cooked ham (0% of SPI); lane e, commercial turkey cooked ham; lane f, commercial chicken cooked ham; lane g, commercial turkey cooked ham; lane 6, milk protein concentrate; lane 13, model pork sausage (0% of SPC); lanes 14,15 model autoclaved pork sausage with 1% and 10% of SPC; lanes h–j, commercial pork sausages; lane k, model turkey sausage (0% of SPC); lane l, commercial turkey sausages; lane m, commercial chicken sausages; lane n, commercial turkey sausages; lane o, commercial turkey and chicken sausages; lane M, Precision Plus Protein Dual Color Standard 10–250 kDa.