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:
Apr. 23, 2002
Filed:
Sep. 02, 1999
Applicant:
Inventors:
Harapanahalli S. Muralidhara, Plymouth, MN (US);
Gary F. Seymour, Howard Lake, MN (US);
Bassam F. Jirjis, Plymouth, MN (US);
Dennis D. Otten, Elk River, MN (US);
Xiaohong Luo, Fresno, CA (US);
Assignee:
Cargill, Incorporated, Wayzata, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C11B 3/04 ;
U.S. Cl.
CPC ...
C11B 3/04 ;
Abstract
A single-step acid degumming/decolorizing process removes chlorophyll-type compounds from vegetable oils from seeds, especially frost damaged seeds which have large amounts of chlorophyll-type compounds. A mixture of aqueous sulfuric and phosphoric acids is blended with the oil to remove chlorophyll-type compounds from the oil. The purified oil has less than about 5 ppm chlorophyll-type compounds, less than about 50 ppm phosphorus and less than about 1.0 weight percent free fatty acids.