China Blue Lactose Agar 500g

Enumerate and differentiate bacteria in dairy products with this standard Thermo Scientific™ Oxoid™ China Blue Lactose Agar (Dehydrated). China Blue Lactose Agar, originally formulated by Brandl and Sobeck-skal, is a standard non-inhibitory solid medium used for the differentiation of lactose fermenters from non-lactose fermenters in milk.

The china blue in the medium serves as a pH indicator to differentiate lactose fermenters from non-lactose fermenters. The medium does not contain any inhibitory substances therefore all the organisms present in milk sample grow luxuriantly on this medium.

China Blue Lactose Agar Base, Oxoid Composition

China Blue Lactose Agar, Oxoid Preparation:
Suspend 35g in 1 litre of distilled water. Boil to dissolve completely. Sterilise by autoclaving at 121°C for 15 minutes.

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.

Precautions
It is important to remember that Gram positive and negative cocci and bacilli can grow on this medium. Always confirm the organism morphology and Gram reaction.