Violet Red Bile Glucose Agar (VRGBA) (USP)
Violet Red Bile Glucose Agar is a selective medium for the isolation and enumeration of Enterobacteriaceae in food products. It is a modification of the original Violet Red Bile Agar (PP1150) with the Lactose being replaced with Glucose and conforms to the requirements of the Harmonised USP/EP/JP. As all Enterobacteriaceae ferment glucose it allows for a wider range of organisms to be detected. The medium is made selective by the inclusion of Bile Salts and Crystal Violet to inhibit gram-positive and other non-enteric organisms.
PP1162 – Violet Red Bile Glucose Agar (VRBGA) (USP)
Additional Information
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| Recommended Incubation | Aerobically using Harmonised USP/EP/JP specified temperatures and incubation |
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Product Description
| Organisms | Ref. No | Result |
| Escherichia coli | ATCC 8739 | Red/purple colonies with red precipitate |
| Salmonella typhimurium | ATCC 14028 | Red/purple colonies with red precipitate |
| Pseudomonas aeruginosa | ATCC 9027 | Colourless colonies |
| Staphylocococcus aureus | ATCC 6538 | Inhibited |
