Monday, October 25, 2010

Can anyone please suggest a atmosphere selective for salmonella spp individual?

Can anyone please suggest a atmosphere selective for salmonella spp individual?
There was a newsletter from Oxoid sometime within late 2005 detailing the atmosphere Oxoid Xylose Lactose Tergitol 4 (XLT-4) agar, which they state, is said to be ideal for the isolation and authorization of salmonellae from food and environmental samples. The detection of salmonella species is regularly complicated by the presence of background flora and other enterobacteriaceae on an agar plate. The presence of the selective agent, Tergitol 4, contained by XLT-4 agar inhibits many organisms that can be problematic on other plating medium. In addition, biochemical and pH change within the prevailing conditions allow salmonella spp (black colonies) to be differentiated from organisms, such as E coli (yellow colonies) and Shigella spp (red colonies).The enhanced selectivity of XLT-4 agar reduces the have need of for further identification procedures, in your favour time and money, and results in a smaller amount false presumptive positive colonies when compared to other salmonella plating media. You would be advise to contact your local laboratory for more up to date information.
Hope this helps
Matador 89
Am I a short time ago stupid or are you asking how to spread something terrible. But since you asked , potato salad. LOL
Salmonella is usually isolated using MacConkey agar, XLD agar, XLT agar or DCA agar.
If the bacterial count is low, you can also do an "enrichment culture" for stool beside very low concentrations of salmonella and so, selective broth medium such as selenite broth can be used.

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