Violet Red Bile Glucose Agar(VRBGA)

///Violet Red Bile Glucose Agar(VRBGA)

Violet Red Bile Glucose Agar(VRBGA)

A modification of Violet Red Bile agar designed to give a ‘coliform’ count. In this medium lactose is substituted with glucose. Glucose is fermented by all members of the Enterobacteriaceae thus V.R.B.G.A gives a presumptive Enterobacteriaceae count. Bile salts and crystal violet are used to inhibit Gram positive and non-enteric organisms. The growth of non-fermentative Gram negative bacteria can be suppressed by using the agar overlay method.

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Product Description

Organisms Ref. No Result
Salmonella typhimurium NCTC 12023 Growth / Purple
Escherichia coli NCTC 12923 Growth / Purple
Enterococcus faecalis NCTC 12697 Inhibited
Pseudomonas aeruginosa NCTC 12924 Growth