No, it is negative
no it is negative
Yes it is. This test can be used to differentiate between S. aureus (which is positive) and S. epidermidis (which is negative).
It should be positive because S. aureus will partially hydrolyze urea and raise the pH so if the pH is raised, a color change should occur thus making your results positive
Bacillus subtilis
it is positive for starch hydrolysis