Isolation of aflatoxin-free lutein from aflatoxin-contaminated plants and plant products
US7671242B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 2005 |
| Grant date | Mar 2, 2010 |
| Priority date | — |
| Expiry date | Sep 3, 2028 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA23V2002/00
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
An efficient method is disclosed for extracting lutein from corn, sweet potato, and other plant products, and for extracting aflatoxin-free lutein from aflatoxin-contaminated plant grains and other plant products safely without any toxic by-products. The lutein is extracted using acetone, and either chilled or saponified to separate from the lipids. If contaminated with aflatoxin, the extracted aflatoxin-contaminated lutein is treated with lipoxidase. This method may be used in producing aflatoxin-free lutein from other contaminated grains or plant oils, or other plant products, including corn, cotton, soybean, rice, barley, wheat, maize, millet, and peanut.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.