Crude phytase samples were partially purified using precipitation
with 70 % ammonium sulphate at 4 _C.
The precipitate was again dissolved in 2 ml 0.1 M acetate buffer (pH-6.0)
and dialyzed against 0.1 M acetate buffer (pH-6.0)
with 3–4 times change of buffer solution to remove salt from the concentrated enzyme solution.
The partially purified
/concentrated samples were assayed for phytase activity,
protein content and kinetic characterization of phytase enzymes from these selected isolates.