Casman Medium Base - 500g

Casman Medium Base is used with blood for the isolation of Haemophilus influenzae, Neisseria gonorrhoeae and other fastidious microorganisms in a laboratory setting. Casman Medium Base is not intended for use in the diagnosis of disease or other conditions in humans.
In 1947, Casman described an infusion-free medium enriched with 5% blood for fastidious microorganisms incubated anaerobically. This medium replaced formulas containing fresh meat infusion and heated blood. Casman adjusted the formula after experiments revealed nicotinamide disrupted the action of a blood enzyme that inactivates V factor (NAD). The concentration of nicotinamide was lowered to support growth of Neisseria spp.