Week 3 of Project

1. Happy Thursday Everyone!
   
   
   I left off last week with needing to perform yet another test to identify unknown #27. This is what the glucose test looked like-
    

   

   
   

   
   

   The purpose of this test is to observe any changes when unknown #27 is exposed to different types of sugar environments. I was looking for a color change and/or if the bacteria produced a gas. My results-

   
   

   	TSB NaCl	TSI	Tryptone	Lactose	Manitol	Glucose
   Acid	-	+	-	-	-	+
   Gas	-	-	-	-	-	-

   
   

   Upon interpereting results, unknown #27 is better known as Bacillus Cereus. 

   
   

   

     
2. B.cereus is a toxin producing bacteria which can cause two different types of illnesses: one type characterized by diarrhea and the other, called emetic toxin, by nausea and vomiting. These bacteria are present in foods and can multiply quickly at room temperature (50-120* F). This particular bacterium only accounts for approximately 2-5% of reported food borne illnesses. 
   
   
   Peace
   Jenni