Biochemical tests for unknown bacteria - (Dec/15/2010 )

Hi
I have recently isolated some bacteria from soil and performed biochemical tests for these isolates. On comparing with available references the results are very much confusing between Enterobacteriaceae and Pseudomonas (gram -ve rods). Could you please tell me what is the main difference in biochemical tests for Enterobacteriaceae and other gram -ve rods ( like Pseudomonas)

Thanks and regards
Gajendra B Singh

check this link and download the flow chart, it might help.
flowchart