|Product Code||Description||Product Size||Quantity|
|CM0099B||S S AGAR 500g||–||500g|
S S Agar 500g
Thermo ScientificTM OxoidTM
Isolate and identify Salmonella and Shigella species from clinical or food samples with Thermo Scientific™ Oxoid™ SS Agar (Dehydrated). Differentiation of Salmonella and Shigella is achieved by incorporation of lactose in the medium. Organisms which ferment lactose produce acid which, in the presence of the neutral red indicator, results in the formation of red colonies. Salmonella, Shigella, and other non-lactose-fermenting organisms appear as transparent or straw coloured colonies on SS Agar.
SS Agar, Oxoid Composition
|pH 7.0 ± 0.2 @ 25°C|
SS Agar, Oxoid Preparation:
Suspend 63g in 1 litre of distilled water. Bring to the boil with frequent agitation and allow to simmer gently to dissolve the agar. DO NOT AUTOCLAVE. Cool to about 50°C, mix and pour into sterile Petri dishes.
Storage conditions and Shelf life
Store the dehydrated medium at 10-30°C and use before the expiry date on the label.
Store the prepared medium at 2-8°C.
This medium is highly selective and R-strains of shigellae will not grow on it. It is not recommended for the primary isolation of shigellae.