2) To phenotypically characterize multi-drug-resistant Gram-negative bacteria such as Escherichia coli, Klebsiella pneumoniae, proteus species, Citrobacter species, Salmonella and Shigella isolated ...

This is in contrast to Streptococcus species, whose growth is selected against ... This is a test commonly used when trying to identify Gram-negative enteric bacteria, all of which are glucose ...