Six hundred nineteen strains of nonfermenting gram-negative rods were tested for alkaline phosphatase, benzyl-arginine arylamidase, pyrrolidonyl arylamidase, ethylene glycol acidification, and susceptibility to desferrioxamine and colistin. The results were highly discriminant. Therefore, the proposed tests may be helpful for the identification of this group of organisms.
Laffineur, K., Janssens, M., Charlier, J., Avesani, V., Wauters, G., & Delmée, M. (2002). Biochemical and susceptibility tests useful for identification of nonfermenting gram-negative rods. Journal of Clinical Microbiology, 40(3), 1085-1087. https://doi.org/10.1128/JCM.40.3.1085-1087.2002 (Original work published 2002)