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Agar

Modified Thayer Martin Agar- Composition, Principle, Preparation, Results, Uses

January 8, 2022January 6, 2022 by Sagar Aryal
Modified Thayer Martin Agar

Thayer and Martin reported an improvement of the Chocolate Agar formulation that contained antimicrobics vancomycin, colistin and nystatin have been added to minimize overgrowth by contaminants, suppress the growth of … Read more

YEPD Agar- Composition, Principle, Preparation, Results, Uses

May 4, 2022January 5, 2022 by Sagar Aryal
Yeast Extract Peptone Dextrose (YPD or YEPD) Agar

Yeasts are unicellular eukaryotes and extensively studied model organism in molecular genetics. They are chemoorganotrophs as they utilize organic compounds as a source of energy. Yeast extract peptone dextrose (YPD … Read more

EMB Agar- Composition, Principle, Preparation, Results, Uses

May 4, 2022January 4, 2022 by Sagar Aryal
Eosin Methylene Blue (EMB) Agar

Eosin Methylene Blue (EMB) agar is a differential microbiological medium, which slightly inhibits the growth of Gram-positive bacteria and provides a color indicator distinguishing between organisms that ferment lactose (e.g.,  E. coli) and those that … Read more

Columbia Agar with 5% Sheep Blood- Composition, Principle, Preparation, Results, Uses

January 8, 2022January 4, 2022 by Sagar Aryal
Columbia Agar with 5% Sheep Blood

Columbia Agar with 5% Sheep blood is a highly nutritious general-purpose medium for the isolation and cultivation of the non-fastidious and fastidious microorganisms from various clinical specimens and non-clinical specimens … Read more

Martin Lewis Agar- Composition, Principle, Preparation, Results, Uses

January 8, 2022January 4, 2022 by Sagar Aryal
Martin Lewis Agar

Thayer-Martin Agar was developed in 1964 for the isolation of N. gonorrhoeae and N. meningitidis. A further modification of these early formulations was developed to improve the isolation of pathogenic … Read more

Hektoen Enteric Agar- Composition, Principle, Preparation, Results, Uses

January 8, 2022January 4, 2022 by Sagar Aryal
Hektoen Enteric Agar

Hektoen Enteric Agar is a selective and differential medium designed to isolate and differentiate members of the species Salmonella and Shigella from other Enterobacteriaceae. The medium was introduced in 1968 … Read more

Endo Agar- Composition, Principle, Preparation, Results, Uses

May 4, 2022January 3, 2022 by Sagar Aryal
Endo Agar

Endo Agar was developed by Endo to differentiate gram-negative bacteria on the basis of lactose fermentation while inhibiting gram-positive bacteria. Inhibition of the later was achieved without the use of … Read more

Egg Yolk Agar- Composition, Principle, Preparation, Results, Uses

May 4, 2022January 3, 2022 by Sagar Aryal
Egg Yolk Agar

Egg Yolk Agar, modified is based on the original formula for Egg Yolk Agar developed by McClung and Toabe for the isolation and differentiation of organisms based on Lecithinase and lipase … Read more

Heart Infusion Agar- Composition, Principle, Preparation, Results, Uses

January 8, 2022January 2, 2022 by Sagar Aryal
Heart Infusion Agar

Fastidious organisms having exacting nutritional requirement can be cultivated on infusion media. Meat infusions were included in the first media used for the cultivation of bacteria. Huntoon prepared a medium … Read more

New York City Agar- Composition, Principle, Preparation, Results, Uses

January 8, 2022January 2, 2022 by Sagar Aryal
New York City Agar

NYC Agar Base medium was originally developed by Fauer, Weisburd, and Wilson at the New York City Department of Health for selective isolation of pathogenic Neisseria species from clinical specimens. … Read more

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