MacConkey Agar No.2 | DM142D

MacConkey Agar No.2 | DM142D

A medium for the detection of enterococci in the presence of non-lactose fermenters and coliforms in food, sewage and water.

MAST MacConkey Agar No.2 is a modifycation of the original MacConkey medium, and is designed to show the presence of
enterococci amongst coliforms and nonlactose fermenting organisms in water, sewage and food products. The medium
contains selected bile salts and crystal violet to inhibit staphylococci and non-faecal streptococci, so that enterococci, indicative of faecal pollution, can be immediately detected.

2. Typical Formula*

3. Directions

1. Suspend by swirling 43.6g of powder in 1 litre or the contents of the sachet in the stated volume of distilled or deionised water.
2. Autoclave at 121°C (15 p.s.i.) for 15 minutes.
3. Mix well before pouring.

4. In Use

MAST MacConkey Agar No.2 is a modification of the original MacConkey medium,1 and is designed to show the presence of enterococci amongst coliforms and non-lactose fermenting organisms in water, sewage and food products. The medium contains selected bile salts and crystal violet to inhibit staphylococci and non-faecal streptococci, so that enterococci, indicative of faecal pollution, can be immediately detected.