Evaluation of Antiseptics and Disinfectants.docx - Evaluation of Antiseptics and Disinfectants Madalene Billings 1 Lot Number Record the lot number for

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Evaluation of Antiseptics and Disinfectants Madalene Billings 10/1/2019
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1 Lot Number Record the lot number for the bacterial species used in this investigation, which is printed on the label of the original lyophilized culture vial. Species Lot number Escherichia coli 15-5065A Observations Activity 1 Data Table 1 Treatment Growth Control ++ 0.01% Bleach - 0.1% Bleach - 1.0% Bleach - 2.5% Lysol ® - 5% Lysol ® - 10% Lysol ® - 0.03% Hydrogen Peroxide ++ 0.3% Hydrogen Peroxide - 3.0% Hydrogen Peroxide - 10% Isopropyl Alcohol ++ © 2018 Carolina Biological Supply Company
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2 30% Isopropyl Alcohol ++ 50% Isopropyl Alcohol - 1. Based on your results, which antimicrobial agent(s) best inhibited the growth of E. coli ? What was the lowest effective concentration of the agent(s)? a. The antimicrobial agent that best inhibited the growth of E. coli was bleach or Lysol. The lowest effective concentration of the agent is 0.01% Bleach. 2. What can you conclude from your results about the relative effectiveness
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Unformatted text preview: of antiseptics vs. disinfectants in preventing the growth of E. coli ? In conclusion Isopropyl Alcohol was the worst inhibitor of E. coli. It had the most bacteria and was most turbid. But also, the Hydrogen Peroxide was not great either with bacterial growing the 0.03% Hydrogen Peroxide. The best disinfectant was the bleach. All 3 had no signs of turbid. Photos Photo 1 Insert the photo(s) of the tubes at 48 hours of incubation from the Observations. Include the control tube in each photo for comparison. Clearly indicate which antimicrobial agent is present in each tube, and its concentration. © 2018 Carolina Biological Supply Company 3 © 2018 Carolina Biological Supply Company 4 © 2018 Carolina Biological Supply Company 5 © 2018 Carolina Biological Supply Company 6 © 2018 Carolina Biological Supply Company...
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