Laboratory Report Student: 18 Date: Section: 18 Evaluation of Antiseptics and Disinfectants: The Filter Paper Disk Method A. Results 1. List the disinfectants/antiseptics that you tested in the table below. With a metric ruler, measure the zones of inhibition in millimeters on all four plates, and record this information in the table below. DISINFECTANT/ANTISEPTIC 3% Hydrogen peroxide 5% Lysol 5% Iodine 1:10 Bleach Mouthwash Betadine Isopropyl alcohol Zone of Inhibition (mm) Staphylococcus epidermidis Escherichia coli
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Step 1: Gather all necessary materials, including the metric ruler, the four plates with bacterial cultures, and the disinfectants/antiseptics listed in the table. Show more…
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Please select all the parameters (variables) that were varied (had different values) in Lab 12 (when looking at data from the entire class, and not just one pair of students): Lab 12 (disinfectants) was the examination of different antimicrobial agents (bleach, ethanol, amphyl, hydrogen peroxide). The temperature that the microbes were incubated in. The pH of the Nutrient Agar plates used in the experiment. The identity of bacteria that was tested by the antimicrobial chemical agent. The concentration (relative amount) of the antimicrobial chemical agent compared to the amount of bacteria used. The identity of the antimicrobial agent that was tested on the bacteria. The duration (amount of time) of exposure to the antimicrobial chemical agent.
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