A selective medium for the enrichment of Enterobacteriaceae and the detection of Escherichia coli in pharmaceutical products. The inclusion of Bromocresol Purple indicator makes the colour change caused by acid production from the fermentation of lactose easy to read with gas formation. The presence of Ox bile helps to suppress the growth of Gram positive and non-enteric bacterial species. This formulation complies with the Harmonized USP/EP/JP.
BM0232 – MacConkey Broth (USP)
|Shelf Life (days)|
|Storage Temp (°C)|
Aerobically using harmonised USP/EP/JP specified temperatures and incubation times
|Escherichia coli||ATCC 8739||Growth & medium turns yellow|
|Salmonella typhimurium||ATCC 14028||Growth & medium does not change colour|
|Staphylococcus aureus||ATCC 6538||No change|