Figure 3

Capacity of the mixture of solutes uric acid, phenol, p-cresol and L-tyrosine to scavenge (A) ABTS^•+ and (B) HOCl/OCl⁻. The inset of the figure (A) show the mean absorbance of ABTS^•+, at 734 nm, for various volumes in the assay of the stock solute mixture with: uric acid (33.5 μmol/L), phenol (25.96 μmol/L), p-cresol (7.98 μmol/L) and L-tyrosine (10.46 μmol/L); final volume reaction, 300 μL. The inset of the figure (B) show the mean absorbance of HOCl/OCl⁻, at 655 nm, for various volumes in the assay of the stock solute mixture with: uric acid (57.5 μmol/L), phenol (89.5 μmol/L), p-cresol (157.5 μmol/L) and L-tyrosine (28.3 μmol/L); final volume reaction, 1500 μL. The scavenging capacities against oxidizing species were performed in triplicate tests.