Name: MacConkey Agar – 500 g – Oxoid
Brand: Oxoid
SKU: macconkey-agar-500-g-oxoid

MacConkey Agar – 500 g – Oxoid

Oxoid MacConkey Agar (CM0007B) is a dehydrated selective and differential culture medium for the detection, isolation, and enumeration of Gram-negative enteric bacteria from clinical specimens, water, and dairy products. It differentiates lactose-fermenting from non-lactose-fermenting organisms via colour change and colony morphology. The 500 g bottle prepares approximately 9.6 litres of ready medium. Recommended by the WHO for bacteriological examination of water.

Specifications

Size: 500 g (dehydrated powder)
Country of origin: المملكة المتحدة (United Kingdom)
Brand: Oxoid (Thermo Scientific)
Form: Dehydrated powder
Yield: ~9.6 litres of prepared medium per 500 g
Sterile: No (dehydrated base; prepared medium is sterilised by autoclaving)
Application: Clinical specimens, water testing, dairy products, biological specimens
Medium type: Selective & differential dehydrated culture medium
Catalog code: CM0007B
Target organisms: Gram-negative enteric bacteria, coliforms, intestinal pathogens

Questions & answers

What is the difference between MacConkey Agar (CM0007B) and MacConkey Agar No. 3?

CM0007B MacConkey Agar does not contain crystal violet, making it more suitable for general clinical specimens. MacConkey Agar No. 3 (CM0115) contains crystal violet and bile salts and is primarily used for water examination per specific standards.

How is the medium prepared from the powder?

Dissolve the required quantity in distilled water, sterilise by autoclaving at 121°C for 15 minutes, then pour into Petri dishes or culture tubes.

Is this medium suitable for clinical specimens such as urine and faeces?

Yes, MacConkey Agar CM0007B is specifically designed for isolating intestinal pathogens directly from clinical samples including urine and faeces.

How much prepared medium does the 500 g bottle yield?

A 500 g bottle yields approximately 9.6 litres of prepared medium.