Tuesday, December 13, 2011

Urea


       The purpose of this test was to determine if our bacteria could hydrolyze urea, and break it down into carbon dioxide and ammonia. 
First we inoculated a broth tube of urea with our unknown bacteria. We then incubated the sample for 48 hours before we read the results. Our results showed that the broth turned a yellow color which indicates that our bacteria is negative for hydrolyzing urea. However, if the broth turned a red/ pink color, the test would be positive. The red color is related to the ph change. Our bacterial broth had not achieved a pH change. 

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