Lysine Decarboxylase Broth

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SKU:
M376
For differentiating Salmonella arizonae from the Bethesda Ballerup group of Enterobacteriaceae.


Lysine Decarboxylase Broth is recommended for differentiating Salmonella arizonae from the Bethesda Ballerup group of Enterobacteriaceae. During the initial stages of incubation, following inoculation, fermentation of dextrose by the organisms leads to acid production, which causes a subsequent colour change of the bromocresol purple indicator to yellow. The acidic condition thus generated stimulates decarboxylase activity, which leads to decarboxylation of lysine to cadaverine. The alkaline conditions generated due to cadaverine production cause the bromocresol purple indicator (changed to yellow) to revert to purple colour. If the organisms do not produce decarboxylase enzyme, the colour of the medium remains yellow. Dextrose non-utilizers will not show any change in the medium colour.
More Information
Product Name Lysine Decarboxylase Broth
SKU M376
Product Type Regular
Physical Form Powder
Origin Animal
Packaging type HDPE
References 1. Murray P. R., Baron J. H., Pfaller M. A., Jorgensen J. H. and Yolken R. H., (Eds.), 2003, Manual of Clinical Microbiology,8th Ed., American Society for Microbiology, Washington, D.C.
2.Carter G. R., 1979, Diagnostic Procedures in Veterinary Bacteriology and Mycology, 3rd Ed., Charles C., Thomas,Springfield, III.
3.Cleveland L. R. and Sanders E. P., 1930, Arch. Protietenkd. 70:223.
4.Forbes B. A., Sahm A. S., and Weissfeld D. F., Bailey & Scotts Diagnostic Microbiology, 10th Ed., 1998, Mosby, Inc., St. Louis, Mo.
5.Isenberg H. D., (Ed.), 1995, Clinical Microbiology Procedures Handbook, Vol. I, ASM, Washington, D.C.
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