Today we looked at our plate of the bacteria we collected from our classmate's phone. We found that the best means of prevention of bacteria were bleach, hand soap and Lysol wipes. The LOL hand antibacterial, Lysol spray and mouthwash were not as effective.
Here's another picture of our test results from the phone's bacteria: gross!
We also got looked at the test results from the water treatment via the UV light. These results were suprossing to us becasue the water that was treated only once with the UV ligt looked like it had the most bactiera killed. The water that was treated a second time actually had more bacteria than the water that was only treated once.
Here's a picture from the bacteria in the water:
Starting from right to left: Water after 2 treatments, water after 1 treatment, water before treatment.
After we looked at the water tests, we took our bacteria out of the anaerobic chamber.
We discovered our unknown bacteria is an aerobic bacteria because it did not grow in the anaerobic chamber
Towards the end of lab we did one last experiment. When thinking about the bacteria that grew on the phone and realized that the antibacterial gel LOL only contained %68 ethanol. We proposed that the bacteria would have been killed if it was treated with 70% Ethanol. We inoculated the bacteria in a nutrient agar and then separated the dish into quadrants. One quadrant contained the LOL gel and the other contained 70% Ethanol. We then incubated the bacteria at 37*C. We'll se what happens next week!
Did an independent experiment to check and see if there was a difference between 68 or 70% Ethanol in the growth of the phone bacteria
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