BIO 3124 Lecture Notes - Lecture 9: Lipid Bilayer, Phenol, Antiseptic

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Three approaches for the control of microbial growth. These are different ways to reduce the number of microorganisms, the first two classes do so by killing, and reduce viability, while not necessarily the number of individuals. The mechanical method however removes the individuals, and a direct count would allow you to see the difference. The elimination of visible adherent dirt (blood, proteins and debris), dust or other foreign matter by manual or chemical processes. Clean is subjective, and a function of the individual. Does not infer the presence or absence of microorganisms. The use of chemical or physical agents that kill or inhibit the growth of microorganisms. Chemical products which can be used on either animate (living) or inanimate things. Often when you use a product is it not to sterilize it but simply reduce the number. Operation used to reduce or eliminate a contaminant. Reducing the level of microbial contamination to prevent transmission in public establishments.