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:
Apr. 09, 1991
Filed:
Nov. 16, 1988
Toru Nakayama, Osaka, JP;
Hajime Yoshizumi, Osaka, JP;
Hiroshi Yamamoto, Kyoto, JP;
Kiyoshi Yoshizawa, Saitama, JP;
Suntory Limited, Osaka, JP;
National Tax Administration, Tokyo, JP;
Abstract
A novel urease and a process for producing the same are disclosed. This novel urease has certain properties that are mainly useful for removing urea from alcoholic liquors or other foods and beverages produced by fermentation. These properties include an optimum pH in an acidic pH range, high stability in a considerably high concentration of alcohol such as in an alcoholic liquor, resistance to high temperatures, and highly specific activity to urea. This urease can be produced by culturing a certain strain belonging to genus Arthrobacter, disrupting the cultured microbial cells and isolating the product.