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Tag: Selective Culture Media

link to Phenylethyl Alcohol Agar: Composition, Preparation, Uses

Phenylethyl Alcohol Agar: Composition, Preparation, Uses

Phenylethyl alcohol agar (PEA) is a selective medium used to cultivate Gram-positive organisms, particularly cocci, from a sample containing a mixture of pathogens. The active ingredient, phenylethyl...

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link to Tinsdale Agar: Composition, Preparation, Uses

Tinsdale Agar: Composition, Preparation, Uses

Tinsdale agar base medium was developed by Tinsdale for the selective isolation and differentiation of C. diphtheriae from diphtheroids. Billings later modified the medium improving its differential...

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link to DCA Agar: Composition, Colony Characteristics

DCA Agar: Composition, Colony Characteristics

Deoxycholate citrate agar (DCA) is a selective and differential medium, recommended for the isolation of enteric pathogens particularly Salmonella and Shigella species. Deoxycholate citrate agar...

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link to Bismuth Sulfite Agar: Composition, Uses, Colony Morphology

Bismuth Sulfite Agar: Composition, Uses, Colony Morphology

Bismuth sulfite agar (BS) is a selective as well as a differential medium for isolation and presumptive identification of Salmonella spp, especially Salmonella Typhi. Salmonella spp are the...

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link to Salmonella-Shigella (SS) Agar: Composition, Principle and Results

Salmonella-Shigella (SS) Agar: Composition, Principle and Results

Salmonella-Shigella (SS) agar is used for selective isolation and differentiation of Salmonella and Shigella. It is used for the isolation, cultivation and differentiation of gram-negative enteric...

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link to Modified Thayer-Martin Agar: Preparation, Uses

Modified Thayer-Martin Agar: Preparation, Uses

Thayer-Martin agar is a selective medium used for the isolation of gonococci (Neisseria gonorrheae) from specimens containing a mixed flora of bacteria and/or fungi e.g. urogenital specimen. Modified...

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