The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 02, 1981
Filed:
May. 15, 1979
Applicant:
Inventors:
Giselher Franzmann, Witten, DE;
Hans-Leo Hulsmann, Wetter, DE;
Assignee:
Dynamit Nobel Aktiengesellschaft, Troisdorf, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12N / ;
U.S. Cl.
CPC ...
435176 ; 435106 ; 435174 ;
Abstract
An enzyme immobilizate comprising an amorphous siliceous support to which an enzyme is bonded by adsorption via an amino alkoxy silane is regenerated after the enzyme has become inactive by contacting the immobilizate containing the inactive enzyme with a solution of inorganic ammonium sulfate or a solution of primary, secondary, tertiary or quaternary C.sub.1 to C.sub.6 alkyl or hydroxy alkyl ammonium sulfate to desorb the enzyme and then contacting the support with a fresh enzyme solution to adsorb active enzyme to the support.