Rappaport Vassiliadis (R.V.) Single Component Enrichment Broth
This is an alternative to Selenite and Tetrathionate broths, as a selective enrichment broth for the isolation of Salmonellae spp from food, dairy and environmental samples and is claimed by some workers to be superior to both these formulations. It can also be used in clinical bacteriology but care must be taken to ensure that only a light inoculum is used. Malachite Green and Magnesium Chloride are included in the formulation as selective agents due to their ability to inhibit most enteric organisms but allow salmonellae to multiply freely.
NB: This media is not recommended for use when salmonella typhi is suspected.