Summary Two TaqMan™‐polymerase chain reaction (PCR) systems have been developed which permit the detection of even minute amounts of beef and pork in processed foods. In these methods cattle‐specific primers amplified a fragment from the phosphodiesterase gene having a length of 104 base pairs (bp), and the swine‐specific primers amplified a fragment from the ryanodin gene having a length of 108 bp. Beyond this, a third TaqMan™‐PCR system, developed on the basis of the detection of the myostatin gene, permits a reliable exclusion of false‐negative results by detecting meat from a variety of mammals or poultry in the material to be tested.
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