The reaction mixture contained 1.0 mL phosphate buffer,
0.1 mL CDNB, 0.1 mL plasma and 0.7 mL distilled water.
The mixture was pre-incubated at 37 °C for 5 min and then the
reaction was started by the addition of 0.1 mL GSH.
The change in absorbance was read at 340 nm every minute for 5 min. Reaction
mixture without the enzyme was used as the blank.
Protein was estimated by the method of Lowry, Rosebrough, Farr, and Randall (1951)
using bovine serum albumin as the standard.