| Identifiers |
 |
| Product Name |
Chapman StONe Agar |
| Catalogue No. |
CM510181 |
|
Description |
Chapman-Stone medium is according to a modification of the classical 110 medium for Staphylococcus. The main modification consists the inclusion of ammonium sulfate, that allows the direct reading or observation of gelatin hidrolysis, instead of adding reagents to the plate medium. Another modification is the reduction in the amount of sodium chloride. The saline content is selective itself, but it is reinforced by the ammonium sulfate, which is also selective. Finally, lactose has been omitted , making the difference between the colonies that ferment mannitol (biqger size) and the colonies that do not ferment mannitol (smaller size) greater, since the latter must grow solely depending on peptone as the nutrient source. |
|
Application |
Solid and differential medium with a high selective ability, for the isolation of staphylococci from food. |