- Mix the culture well and transfer about 2ml to 2.5ml into the test tube.
- Add a small quality of creatine.
- Add equal quatity (2 to 2.5ml) of the alkaline solution.
- Mix Throughly by shaking the test tube and allow to stand for 10 min.
- Observe the formation of a pink band on the surface of the milk and time taken.
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