MCB 3020L Lecture Notes - Lecture 38: Organic Compound, Iodophor, Heavy Metals
Document Summary
Metal or glass cylinder are dipped into standardized culture of the test bacteria, removed and dried at. Dried cultures are placed in disinfectant for 10 minutes. Effectiveness is determined by how much growth is observed after being transferred to a media that allows growth. Disk of filter paper is soaked in a chemical agent and placed in a bacterial medium. how much clear zone is present demonstrates effectiveness of chemical agent. First used in controlling surgical infections in the operating room. Rarely used as an antiseptic due to skin iirtation. Used a throat lozenges dues to anestetic effect. Contain a molecule of phenol that has been chemically altered to reduce its irritating qualities or increase its antibacterial activity in combination with a soap or detergent. Injures lipid containing plasma membranes resulting in leakage of cellular contents. All kinds of bacteria, many endospores, various fungi and some viruses.
