Decarboxylase Broth Base, Moeller(Moeller Decarboxylase Broth Base)is recommended to differentiate bacteria on the basis of their ability to decarboxylate the amino acids. Amino acids such as L-Lysine, L-Arginine, L-Ornithine or other L-amino acids are added to this medium to study respective decarboxylation study. Production of ornithine decarboxylase is a helpful criterion in differentiating Klebsiella and Enterobacter species. Klebsiella are non-motile and do not produce ornithine decarboxylase while Enterobacter are motile and produce ornithine decarboxylase except Enterobacter agglomerans.
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