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Violet Red Bile 2 Agar for Stressed Coliforms |
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| Authors: | Paul A Hartman Philip S Hartman and Wayne W Lanz |
| Abstract: | Counts on a new, autoclave-sterilizable violet red bile (VRB-2) agar were compared with counts on freshly boiled VRB agar. Yields on VRB-2 agar averaged 217, 180, 130, and 112% of counts obtained on the control medium for samples of water, cottage cheese, frozen vegetables, and raw milk, respectively. The general principle used for the development of VRB-2 agar could be applied to many other kinds of selective plating media. |
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