Specifications
| Container | Syrup |
| Available fill size(s) (ml) | 50, 100 |
| Neck width (mm) | 24 |
| Caps | PP, Perf, Metal |
| Shelf life | 12 months |
| Storage Temp | 2-25oC |
| Appearance | Purple liquid with Durham's tube |
| Recommended Incubation | 37/44oC |
| pH | 7.35 +/-0.15 |
MacConkey Broth EP/USP, Syrup + Durham Tube
A medium recommended by the Harmonized USP/EP/JP for the selective enrichment of Escherichia coli
from non-sterile samples. Conforms to Harmonized USP/EP/JP performance specification. Gelatin
peptone provides a source of nitrogen, while lactose is a fermentable carbohydrate. Ox bile acts a
selective agent inhibiting most Gram-positive organisms and bromocresol purple acts as a pH indicator. A
color change from purple to yellow indicates growth of a bile tolerant, lactose fermenting organism such
as Escherichia coli. According to the Harmonized USP/EP/JP, MacConkey Broth is used as a selective
enrichment broth, with subculture performed onto MacConkey Agar.
Quality Control
| Organisms | Ref. No | Result |
|---|---|---|
| Escherichia coli | ATCC 8739 NCIB 8545 | Turbidity, acid production and gas formation from an inoculum of <100cfu |
| Staphylococcus aureus | ATCC 6538 NCTC 10788 | No growth from an inoculum of >1000cfu |
Description
0523
SKU: 0523
