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:
May. 18, 1982
Filed:
Mar. 19, 1980
Applicant:
Inventors:
Henry E Blair, Barnstable, MA (US);
Stanley E Charm, Newton, MA (US);
Richard P Crowley, Boston, MA (US);
Assignee:
The Enzyme Center, Inc., Boston, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12N / ; C12N / ;
U.S. Cl.
CPC ...
435173 ; 435228 ; 422 22 ;
Abstract
In a method of preparing the enzyme, urease, from jack beans, wherein the jack beans are reduced to a fine particle size and the fine particles so reduced constitute urease, the fine jack-bean particles thereafter irradiated for a period of time, the irradiated jack beans then recovered and employed as a source of urease enzyme, the improvement which comprises: irradiating the whole jack beans prior to any size reduction of the seeds of the jack beans, to provide a urease derived from the white seeds of the irradiated whole jack beans having an improved activity level.