Filtration is the preferred method of sterilizing heat-sensitive liquid and gases without exposure to denaturing heat. Rather than destroying contaminating microorganisms, it simply removes them. It...
Category: General Microbiology
Radiation is currently used for sterilization and decontamination in the medical supplies (surgical supplies, vaccines, and drugs) and food industries. Two types of radiations are available; ionizing...
Disinfection is a process whereby pathogenic organisms, but not necessarily all microorganisms or spores, are destroyed. Disinfection may be accomplished by physical or chemical means. A number of...
pH scale is used to express the acidity or alkalinity of a solution on which neutrality is pH 7. The pH scale extends from pH 0.0 to pH 14.0, and each pH unit represents a tenfold change in hydrogen...
The lac operon is a well-known example of an inducible gene network that regulates the transport and metabolism of lactose in Escherichia coli. It encodes the genes for the internalization of...
Microbes are loosely classified into several groups based on their preferred temperature ranges. Every organism has a range of permissive growth temperatures. Unlike pH or osmolarity, microbes...