the immobilized acylase catalyzes the hydrolysis of N-acetyl-DL-amino acid to L-amino acid, the D-form is not attacked
Unit Definition
1 U corresponds to the amount of enzyme which hydrolyzes 1 μmol N-acetyl-L-methionine per minute at pH 8.0 and 25°C
Reconstitution
Standard procedure: a 10-20% substrate solution, pH 6-8, with an addition of CoCl2 (10-4 moles) at 33°C was used. Prior to use the polymer was washed with water (50 times bed volumes); when used in a fixed bed reactor, a velocity of flow of 3 bed volumes/h leads to a hydrolysis degree of 80%
Analysis Note
moist pearls (dried substance ~30%, pearl diameter 50-100 μm), covalent fixation of the acylase
Other Notes
The immobilized acylase is used for the convenient resolution of amino acids via the selective deacetylation of N-acetyl-L-amino acids in DL-racemates[1][2][3][4]
Legal Information
Eupergit is a registered trademark of Röhm GmbH & Co. KG
Plexazym is a registered trademark of Röhm GmbH & Co. KG
The effects of bovine serum albumin (BSA) addition on the cross-linked enzyme aggregates (CLEA) of aminoacylase from Aspergillus melleus (EC 3.5.1.14) were conducted at varying glutaraldehyde to enzyme ratio. After optimization, CLEA of aminoacylase prepared with 10 mg BSA per
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