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:
Jan. 01, 2002
Filed:
Jan. 18, 2000
Applicant:
Inventors:
Gil Ben-Yosef, Even Yehuda, IL;
Arkady Garbar, Yokneam, IL;
Assignee:
Lycored Natural Products Industries, Ltd., Beer Sheva, IL;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A01N 3/108 ; A61K 3/105 ;
U.S. Cl.
CPC ...
A01N 3/108 ; A61K 3/105 ;
Abstract
A novel process for the production of the natural antioxidant, carnosic acid, by extracting it from rosemary leaves with an aqueous solution of a lower alkyl alcohol in the presence of a water soluble acid is described. The extraction of the carnosic acid is very selective, i.e. very few other chemicals such as pro-oxidants from the plant are extracted. Furthermore, a method for the stabilization of the extracted acid from decomposition and a method of preparing the acid in high concentration are described.