Research Article

Investigation on the Competition Interaction of Synthetic Food Colorants and Ciprofloxacin Hydrochloride with Bovine Serum Albumin by Fluorescence Spectroscopy

Table 3

Binding constants , number of binding sites and the rate of change of binding constants for BSA-CPFX system in the presence of food colorants at 298 K.

System (μM) (M−1) (%)

BSA-ETS-CPFX2.02.77 × 1041.250.9988−8.28
5.02.12 × 1040.9840.9991−29.8
BSA-TTZ-CPFX2.02.87 × 1041.060.9972−4.97
5.02.39 × 1041.110.9912−20.9
BSA-SY-CPFX2.02.91 × 1041.110.9984−3.96
5.02.53 × 1041.010.9958–16.2

The linear relative coefficient of .