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:
Sep. 21, 2004
Filed:
Jan. 07, 2002
Applicant:
Inventors:
Mats Malmberg, Lund, SE;
Brita Westrup, Lund, SE;
Assignee:
Novozymes Biopharma AB, Lund, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12P 7/40 ; C07C / ; C07C / ; A61K 3/843 ;
U.S. Cl.
CPC ...
C12P 7/40 ; C07C / ; C07C / ; A61K 3/843 ;
Abstract
This invention is directed to the use of crystallization acids, such as acetic, lactic and propionic acids, to obtain high purity polyhydroxyl cyclic carboxylic acids (PCCA) from low purity aqueous solutions. The preferred PCCA is shikimic acid and the preferred crystallization acid is acetic acid. The method according to the invention is particularly applicable to the isolation of shikimic acid from a fermentation broth.