Biochemical characterization of an esterase from Thermobifida fusca YX with acetyl xylan esterase activity.

Background: Esterases (EC 3.1.1.

Analytical interference of quinolone antibiotics and quinine derived drugs on urinary protein determined by reagent strips and the pyrogallol red-molybdate protein assay.

Objectives: To investigate the analytical interference of drugs in urinary protein and to estimate the lowest interfering concentrations.

Design And Methods: Drug supplemented urine samples were compared to the control with two reagent strips and the total protein was determined using Pyrogallol Red-Molybdate (PRM).

Results: False-positive interferences occurred with Multistix 10 SG for hydroxychloroquine, levofloxacin and ofloxacin.