Research Article

Feasibility Study on a Measurement Method and a Portable Measuring System to Estimate the Concentration of Cloxacillin and β-Lactamase in Milk

Table 4

Results of the inhibition test: inhibition constant () of 6 lactam antibiotics towards AmpC lactamase in CENTA substrate.

Antibiotic

Dicloxacillin sodium salt hydrate0.85 ± 20% nM
Cloxacillin sodium monohydrate1.37 ± 20% nM
Oxacillin sodium monohydrate3.73 ± 20% nM
Cefalexin17.1 ± 20% μM
Cefalonium hydrate82.6 ± 20% μM
Cefoperazone dehydrate166 ± 20% μM