Violet Red Bile Agar (7165)
Acumedia |
BD / Difco |
BD / BBL |
Oxoid |
Merck |
Violet Red Bile Agar (7165) |
211695 |
N/A |
CM0107 |
1.01406 |
Intended Use
Violet Red Bile Agar is specifically designed for the enumeration of coliforms in food and dairy products, adhering to the standards set by the American Public Health Association (APHA).
Product Summary and Explanation
This selective culture medium is essential for the identification of coliform bacteria, which are pervasive in food environments. Coliforms include aerobic and facultative anaerobic, gram-negative, non-spore forming bacilli that exhibit lactose fermentation characteristics. Under optimal conditions (35°C for 48 hours), these bacteria ferment lactose, producing acid and gas.
Violet Red Bile Agar functions effectively in the testing protocol for foods and dairy products. Notably, the procedure utilizes this agar medium for presumptive testing of coliform presence. When typical coliform colonies emerge on the agar, further testing is conducted to confirm their identity. The fermentation process lowers the medium's pH, causing the colonies to develop a distinctive red coloration, complemented by the precipitation of bile salts due to interactions with Neutral Red Dye.
Key Features:
- Effective for coliform enumeration in foods and dairy products.
- Facilitates the identification of gram-negative, lactose-fermenting bacteria.
- Color change from acid production aids in colony identification.
- Meets the American Public Health Association (APHA) standards.
Utilize Violet Red Bile Agar for accurate and reliable results in microbial testing, ensuring food safety and quality in your laboratory practices.