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Agar has been used as an ingredient in desserts throughout Asia and also as a solid substrate to contain culture media for microbiological work. Agar can be used as a laxative ; an appetite suppressant ; a vegan substitute for gelatin ; a thickener for soups ; in fruit preserves , ice cream, and other desserts; as a clarifying agent in brewing ...
Mueller Hinton agar is a type of growth medium used in microbiology to culture bacterial isolates and test their susceptibility to antibiotics. This medium was first developed in 1941 by John Howard Mueller and Jane Hinton , who were microbiologists working at Harvard University.
Replica plating is another technique used to plate out cells on agar plates. These four techniques are the most common, but others are also possible. It is crucial to work in a sterile manner to prevent contamination on the agar plates. [1] Plating is thus often done in a laminar flow cabinet or on the working bench next to a bunsen burner. [2]
MacConkey agar is a selective and differential culture medium for bacteria. It is designed to selectively isolate gram-negative and enteric (normally found in the intestinal tract) bacteria and differentiate them based on lactose fermentation. [1] Lactose fermenters turn red or pink on MacConkey agar, and nonfermenters do not change color.
TCBS agar contains high concentrations of sodium thiosulfate and sodium citrate to inhibit the growth of Enterobacteriaceae. Inhibition of gram-positive bacteria is achieved by the incorporation of ox gall , which is a naturally occurring substance containing a mixture of bile salts and sodium cholate , a pure bile salt .
Agar plates Organisms are placed or streaked onto petri dishes Provides a solid surface for stationary growth, compact and stackable Agar based dipsticks Essentially miniature agar plates in the form of dipsticks Diagnostic purposes, can be used anywhere, cost effective, easy to use Selective and differential media
This is typically facilitated via use of a liquid, semi-solid, or solid growth medium, such as broth or agar. Tissue culture commonly refers to the culture of animal cells and tissues, with the more specific term plant tissue culture being used for plants. The term "tissue culture" was coined by American pathologist Montrose Thomas Burrows. [1]
Bile Esculin Agar (BEA) is a selective differential agar used to isolate and identify members of the genus Enterococcus, [1] formerly part of the "group D streptococci" (enterococci were reclassified in their own genus in 1984).