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:
Jul. 04, 1989
Filed:
Oct. 14, 1987
Shigeya Kakimoto, Kawanishi, JP;
Yasuhiro Sumino, Kobe, JP;
Hideaki Yamada, Kyoto, JP;
Satoshi Imayasu, Kyoto, JP;
Eiji Ichikawa, Kyoto, JP;
Tetsuyoshi Suizu, Kyoto, JP;
Takeda Chemical Industries, Osaka, JP;
Gekkeikan Sake Company, Ltd., Kyoto, JP;
Abstract
Alcoholic liquors containing carbamide are treated with the urease which has the optimal pH for the activity in an acid region, especially in the region of pH2 to 5. By such treatment, the carbamide can be completely decomposed and removed from the alcoholic liquors in a much smaller amount of urease and in a short time as compared with a conventional treatment according to a urease having the optimal pH in the neutral to alkaline region. This method is more advantageous from the viewpoint of practical use and the quality of the thus obtained alcoholic liquors are superior to that obtained by the conventional treatment.