Friday, May 31st.
The results of our last tests came in today. The EMB (Eosin Methylene Blue) agar plate was used to test for the presence of E.Coli. For a positive result the bacteria would produce a metallic green color, and since our bacteria did not produce such a result we determined that our bacteria was not E. Coli.
Albumin Test: There was no results because there was no discoloration between the holes which we would have thought would have occurred between the Bovine Albumin and the Goat Anti-horse Albumin. We therefore think that we had a bad batch of albumin.
Our Phenol-Ethyl agar plate that we prepared two days ago came back as a negative test. The phenolethyl agar differentiates between gram-positive and gram negative bacteria because only gram-positive bacteria grow on the plate. Our bacteria did not grow and therefore are gram-negative, as we have seen before in some of our other tests.
With all of our data collected from our tests we were able to determine that our bacteria is Serratia marcescents.
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