Litmus Test Results & Mannitol, EMB, and MacConkey Tests

Our litmus milk broth turned a slightly pinkish but still mostly purple blue. We think it is slightly acidic. And there are curds in the broth. We also preped for several selective and differential tests today, sepecifically the Mannitol, EMB (Eosin Methylene Blue Agar) and MacConkey Tests. Using aseptic technique, we inoculated bacteria 'L' onto these three different Agars. They were then placed in the incubator at 25 degree Celsius. They will be checked next week to determine which of the agars bacteria 'L' thrives on!!

Anne B