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. 07, 1994
Filed:
Jul. 26, 1991
Susumu Seki, Yokohama, JP;
Masaru Suto, Yokohama, JP;
Koichiro Ryuno, Yokohama, JP;
Hitoshi Shimizu, Yokohama, JP;
Takanori Fujimoto, Yokohama, JP;
Nitto Kagaku Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A method for the cultivation of bacteria of the genus Pseudomonas capable of producing nitrile hydratase is disclosed. The method involves adding a water soluble copper compound in an amount of about 0.5 to 5.0 mg/l as calculated in terms of copper to a culture medium in the preparation of cells of the bacteria under shear force supplied by stirring blades, wherein the circumferential speed of the edges of the stirring blades exceeds about 2.5 m/sec. The water soluble copper compound is preferrably copper chloride, copper sulfate, copper nitrate, copper acetate, copper tartrate, copper (II) acetylacetonate or copper (II) ETDA.