Table 4.

Summary of results of carbohydrate fermentation tests of isolated Gram-negative bacteria.

Bacteria	Glucose	Lactose	Sucrose	Maltose	Mannitol
A. baumannii	–	–	–	–	–
Citrobacter sp.	A + G	LLF	+	+	+
Enterobacter sp.	A + G	A	+	+	+
P. vulgaris	G	–	–	–	+
P. mirabilis	G	–	–	–	+
K. oxytoca	A + G	A	+	–	+
K. pneumoniae	A + G	A	+	–	+
P. aeruginosa	A	–	+	+	V

A: acid; A + G: acid + gas; V: variable; LLF: late lactose fermentation; LSF: late sucrose fermentation; +: positive; –: negative.