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:
Aug. 07, 2012
Filed:
May. 08, 2007
Applicants:
Munir Cheryan, Urbana, IL (US);
Aniket V. Kale, Champaign, IL (US);
Fangyi Zhu, Urbana, IL (US);
Philip L. Shane, Hudson, IL (US);
Inventors:
Munir Cheryan, Urbana, IL (US);
Aniket V. Kale, Champaign, IL (US);
Fangyi Zhu, Urbana, IL (US);
Philip L. Shane, Hudson, IL (US);
Assignee:
The Board of Trustees of the University of Illinois, Urbana, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07K 14/00 (2006.01); C07C 35/21 (2006.01);
U.S. Cl.
CPC ...
Abstract
Methods and systems for obtaining zein and/or xanthophylls in highly pure form. Zein is first extracted from corn using aqueous ethanol. Suspended corn solids are separated, and the resulting extract is purified in a single size-exclusion chromatography step to separate impurities and produce substantially purified zein. The chromatography step may simultaneously produce substantially purified xanthophylls.