Comparison of Viable Bacterial Count and Bacterial Flora in Pork Stored at 5°C among Temperatures of Incubation

Pork was stored at low temperature (5°C) . Viable bacterial count and bacterial flora were compared in this pork at given intervals when the pork was incubated at 7°, 30°, and 35°C. As a result, the following conclusions were drawn.1) In the whole experimental period, except in the early stage of storage, the viable bacterial count was statistically higher in pork incubated at 7° or 30°C than in pork incubated at 35°C.2) The rate of isolation of Pseudomonas tendéd to be significantly high in the sample incubated at 30°C. The rates of isolation of Enterobacteriaceae and Aeromonas showed a tendency to be significantly high in the sample incubated at 35°C.3) When the bacterial flora was compared among the temperatures of incubation mesophilic bacteria seemed to be predominant in it in the early stage and psychrophilic bacteria in the other stages of storage.4) From these results it was concluded that incubation at 30° or 7°C might be more suitable for the measurement of viable bacterial count and analysis of bacterial flora of pork than incubation at 35°C.