Lab M's ISO formulated Differential Reinforced Clostridial Medium, or DRCM (ISO), is used for the detection of clostridia spores from water and environmental samples
using the Most Probable Number (MPN) technique, the DRCM (ISO) rapidly provides a visual indication of the presence or absence of the target organism.
Part of the company's anaerobe range, this standardised medium is formulated to ISO 26461-1 for the detection and enumeration of the spores of sulphite-reducing anaerobes (Clostridia) in water.
Said to be simple to prepare, DRCM (ISO) enables the detection and enumeration of the spores of sulphite-reducing anaerobes (clostridia) in 46 hours.
After first heat treating samples to remove vegetative cells, DRCM is used with the Most Probable Number (MPN) method to determine clostridia content per volume of sample.
Due to the inclusion of iron (III) citrate in the DRCM formulation, blackening of the medium indicates sulphite reduction, highlighting the presence of sulphite-reducing bacteria.