Lignin Peroxidase (LiP) LiP was determined in reaction
mixture containing 0.1 M sodium tartrate (pH3.0), 0.16
mM azure B and 0.5 mL culture supernatant. The reaction
was initiated by adding 2 mM H2O2. Absorbance was read
after 1 min at 651 nm. One unit of enzyme activity was
expressed as Optical Density (O.D) decrease of 0.1 units
per min per mL (Arora & Gill 2001).