Abstract
ABSTRACTProtein indicators were identified and enzyme‐linked immunosorbent assays (ELISA) were developed for verifying endpoint processing temperatures (EPT) of turkey ham. Lactate dehydrogenase (LDH), immunoglobulin G (IgG), and turkey serum albumin (TSA) were identified by electrophoresis, Western blotting or enzyme assays as potential markers in turkey ham processed between 66.9 and 73.9°C. TSA and IgG were quantified using indirect competitive ELISAs, and LDH was quantified by a sandwich ELISA. The concentration of all indicators decreased as processing temperatures were increased. At 73.8°C, 9.3 μg TSA and, 0.5 μg LDH or TSA were detected/g meat. At the USDA required EPT of 68.3°C, residual concentrations of 1221 ng IgG/g meat, 330 ng LDH/g meat and 51,852 ng TSA/g meat were detected.
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