The esterase enzyme was purified by ammonium sulfate precipitation
at 60% saturation. After dialysis, dialysate was subjected
to anion exchange chromatography using Macro-Pep High Q column
(BioRad). A single peak with esterase activity was obtained
with a gradient (1e2.5 M) of NaCl. The total recovery of esterase
after purification was 7.65% with w11 fold purification by this step
(Table-1). Purified fraction was used for zymography and SDSPAGE.
A single band of w42 kDa was detected in zymography
possessing esterase activity (Fig. 2).