Evaluation of the Quality of Meat and Fermented Dairy and Meat Products by Tyramine Sensor

Evaluation of Meat Spoilage using a Chemiluminescence – Flow Injection Analysis System Based on Immobilized Putrescine Oxidase and a Photodiode

“…To confirm this assumption, an amine oxidase which is inactive against Spd but has specific activity to other biogenic amines should be used. For this purpose, an immobilized tyramine oxidase column would be suitable because tyramine oxidase has high substrate specificity to tyramine (Tyn) and shows no activity to Spd (8). Another possible explanation for the response at low bacterial counts could be the presence of cysteine in specimen solutions.…”

“…However, these methods are both time consuming and require expensive instruments. In order to determine biogenic amines in a more convenient way, biosensors have been developed (6)(7)(8). The sensor developed by the authors (7) is composed of an immobilized putrescine oxidase and an oxygen electrode, and can measure putrescine (Put) and cadaverine (Cad) produced by bacteria in meat.…”