storage of penicillinamidase

Michael (2) m.hans at
Tue Mar 9 13:46:28 EST 1999


today we discovered an old solution of penicillin-amidase from E.coli
(EC in our fridge. It was stored there for about 4 months at
-4°C. (I don't know who put it there!!!) At this temperature it is
liquid. The supplier specifies that the enzyme is to stored below -18°C,

where the solution is freezed.
Does anybody know whether this solution is still OK?


Dipl.-Biol. Michael HANS

Department of Biochemical Engineering
Saarland University
P.O. BOX 151150
D-66041 Saarbruecken

phone :  ++49  681  302 3545
fax   :  ++49  681  302 4572
email :  m.hans at

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