Several Escherichia coli (ATCC 11229) bacterial cultures were established using serial dilutions and simple agar plate pouring. The growth of the bacterial cultures was evaluated using spectrophotometric and colony counting methods. Data collected from a two-hour monitoring using 30-minute interval sampling of bacterial suspensions were plotted against the 30-minute interval collection times on a normal and semilographic coordinates. The resulting growth curves showed that the […]

I would not say science is storybook fun, but who knew it become a mystery. Trying to find out what was in our number seven vial would become a battle we were willing to take on. As I began the test of deciding if our little bacteria friend was gram positive or negative, Jordan my science teammate, was putting together a smear plate. In as […]