enzyme storage

[MAHARAJAH]

Most commercial firms sell their enzymes as suspension in 2-2.5M ammonium
sulfate. You could try storing your enzyme by making your working concentration
in 2.5M ammonium sulfate solution in the desired buffer.
Warning: Don't freeze the enzymes. store at 0-4 degree centigrade.
It works fine with my enzyme.

Please let me know the outcome.  As I am working on this topic.  I would be
interested to know.
sincerely
sri