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. 16, 1987
Filed:
May. 06, 1985
Charles E Brothers, Cassopolis, MI (US);
Chong Y Kim, Elkhart, IN (US);
Miles Laboratories, Inc., Elkhart, IN (US);
Abstract
This invention relates to a novel process for the recovery of enzymes obtained from enzyme-producing microorganisms, and to the liquid enzyme product recovered by this process. Typically, the enzyme-containing filtrate from a fermentation of an enzyme-secreting microorganism is concentrated and a precipitation agent such as a salt or an organic solvent is added to the concentrate, thereby forming a cake. Then, a polyol solvent is circulated through the cake to solubilize the enzyme or enzyme complex from the cake and provide a liquid enzyme product. Particularly effective is propylene glycol as the polyol solvent. The liquid enzyme product may be shipped as is or subjected to further treatment to remove the solvent and create an essentially solvent-free enzyme product. The process is especially effective for the recovery of alkaline protease or alpa amylase.