This week I spent most of my time avoiding any amount of homework. However, I did go to Piestewa Peak Park and saw a snake hiding under a bush. I was disappointed that the internship lab was not open on the days I came down. I can imagine my latest Staph. A dish is still incubating in its toasty new home. I was looking forward to analyzing it today. I haven't been able to start the aloe extraction process either. I am about to enjoy my second cup of coffee before work. I hope everyone else's week was excellent, and I look forwards to a better next week. (P.S See if you can spot the snake in the picture :))
On Tuesday, I plated E. Coli and tested the effectiveness of 4 samples to kill the bacteria. The sample included , Aloe Vera gel (store bought), Windex, Tap water, and 70% Isopropyl Alcohol. This experiment was pretty much used to keep me busy as I haven't yet been able to start a project. However when I came in Wednesday, I found some interesting results. The zone of inhibition was basically 0 for every sample, including the isopropyl alcohol. Although the tap water, being the control, and the Windex doesn't jump out as a surprise to me, the 70% Alcohol does. Originally I had two hypothesis's on why this occurred. One being that because E. Coli is a gut bacteria and therefore is built to withstand alcohol. The second theory suggest user error such as the letting the alcohol evaporate to much before I was able to put the disk on the plate. Because of the results on Wednesday and with the first hypothesis in mind, I chose to do another plate instead with Staphylococcus. I ch...
Comments
Post a Comment