Types Of Agar

Front 1

Chromogenic UTI Clarity Agar

Back 1

Non selective differeintial agar. Identifies the main UTI pathogens.

E.coli - Pink

E.faecalis = Blue/Turquoise

Proteis - Brown halo

Front 2

Chromogenic UTI Clarity Agar

Back 2

Pseudomonands - Green

Staph.Saprophyticus - Pale pink / white

Streptococci - White

Front 3

MacConkey Agar

Back 3

Selective medium for differentiation of coli-forms and non-lactose fermenters.

Inhibits G+ve micro-cocci

Lactose fermenters produce pink colonies

Non lactose fermenters produce white colonies

Front 4

Desoxychocolate Citrate Agar

Back 4

Selective medium

Selects for Salmonella and Shigella

E.coli produces pink colonies surrounded by a zone of precipitation

Salmonella produces opaque colonies with a central black dot

Front 5

Wosin Methylene Blue Agar

Back 5

An isolation medium for the differentiation of Entrobacteriaceae

E.coli produces greenish metallic colonies.

Front 6

Brilliant Green Agar

Back 6

A selective medium for the isolation of Salmonellae

Salmonella produces a pink colony surrounded by bright red zones in the agar

E.coli grows poorly as greenish yellow colonies

Proteus is almost inhibited growing as small red colonies without swarming

Front 7

XLD medium

Back 7

Selective medium for the isolation of Salmonella and Shigella

Salmonella produces red colonies with black centers

E.coli produces yellow opaque colonies.

Front 8

Sorbitol MacConkey Agar

Back 8

Sorbitol as sugar instead of Lactose

E.coli 0157 - Sorbitol negative (white)

Other E.coli - Sorbitol posative (pink)

Increases recovery of O157 100-fold using antibody specific immunomagnetic beads