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:
Nov. 16, 1993
Filed:
Jun. 14, 1991
Barbara S Kitchell, Austin, TX (US);
Robert W Henkens, Durham, NC (US);
Philip Brown, Durham, NC (US);
Steven W Baldwin, Durham, NC (US);
Charles H Lochmuller, Durham, NC (US);
John P O'Daly, Carrboro, NC (US);
Andcare, Inc., Durham, NC (US);
Abstract
Carrageenan-immobilized enzymes are prepared that are stable and retain high activity toward substrates when used in substantially water-immiscible organic solvents. The carrageenan-immobilized enzymes are preferably prepared by introducing droplets of an enzyme/carrageenan solution into a chilled alcohol saturated with a potassium salt and hardening the droplets in the alcohol. The alcohol is selected from n-butanol, benzyl alcohol, crotyl alcohol, n-propanol, isopropanol and sec-butanol. Reactions catalyzed by a .kappa.-carrageenan-immobilized esterase include steroselective transesterifications and hydrolysis reactions.