MacConkey Broth Purple with Bromocresol Purple is used for the presumptive identification of coliforms and for cultivating Gram-negative, lactose fermenting bacilli from a variety of samples like water, milk and food in compliance with IP.
Composition*
Ingredients
| g/L
|
Pancreatic Digest of Gelatin
| 20.0
|
Lactose
| 10.0
|
Dehydrated Bile Powder#
| 5.0
|
Bromocresol Purple
| 0.01 |
*Adjusted to suit performance parameters.
Final pH (at 25°C): 7.3 ± 0.2
#Equivalent to Dehydrated Ox Bile
g/L: Suspend 35.01 g of the powder in 1000 mL purified / distilled water.
