simple B-lactamase plate assay

FJ van der Wal vdwal at
Mon May 30 06:04:34 EST 1994

Does anyone know a simple plate assay for b-lactamase activity on E.coli
colonies, apart from the iodine-assay, or is there a chromogenic
ampicillin-like substrate which can be added to the plates?
Thanks in advance!
Fimme Jan van der Wal
dep. Molecular Microbiology
Vrije Universiteit Amsterdam
de Boelelaan 1087
1081 HV Amsterdam, NL
vdwal at

More information about the Methods mailing list