For the evaluation of efficiency, potency, and reactivity of disinfectants following techniques are used: Tube dilution and agar plate method, Cup-plate, filter paper, and cylinder plate method, Ditch-plate or giant colony...
Author - Santhakumar Raja
Extent of antimicrobial action, rate of disinfection, and potency of a disinfectant depends on the following factors: Concentration of Disinfectant : Concentration of the disinfectant directly influences the rate of killing...
Disinfectants are classified on the basis of the following factors: Based on Consistency : On the basis of consistency or state of matter, disinfectant are of two types: Liquid (e.g., alcohols, phenols), and Gaseous (e.g...
Use of fertilised, embryonated chicken eggs is one of the cost-effective and convenient methods of cultivation for many animal viruses. A needle or syringe is put through a hole drilled in the shell to introduce the virus...
Industrial fermentation processes are mostly operated under vigorous aeration, maintaining the supply of sterilised air to the fermenter. Air filters should be attached to air input and exhaust ports for preventing the...
Sterile products are free of microbes, pyrogens, and particulates. They also possess high standards of purity and quality. Therefore, the sterilisation methods used during the manufacturing of sterile products should be evaluated...
Salmonella typhi and Escherichia aerogen bacteria obtain carbon from citrate. This ability of utilizing citrate as the carbon and energy source is used as a distinguishing test for some Grods. Principle Simmons citrate agar...
Transmission electron microscope utilise an electron beam which passes through and interacts with an ultra-thin sample to produce an image, which is then magnified and focused on an imaging device (a fluorescent screen), on a...
Scanning electron microscopy utilises electron beam for producing high-resolution images of sample surfaces. It forms 3-D view of the sample. It also gives the surface topography of the sample with sufficient clarity and depth of...
The term growth in microbiology indicates the magnitude of total population. Microbial growth measurement is essential for: Determining the growth and reproduction rate, Determining the suitability of water, milk, and food for...
