ペトリフィルムTM培地の大腸菌群数迅速測定用プレートにおける牛乳・乳飲料の大腸菌群迅速検査

抄録

In this study, we examined rapid assay for coliforms test (presumptive test) using Petrifilm^TM RCC plates for cow milk and milk beverage. The study was conducted on 50 different coliforms and we checked how many hours the RCC plate could determine the coliforms using desoxycholate agar medium (20±2 hr incubation) as a control.

As a result, it was confirmed that 12 hr incubation on RCC plates was equivalent to make a positive determination of the coliforms presumptive test when freshly cultured bacteria were used. However injured bacteria were not considered. Further investigation of applying real food samples is needed.