Methods and compositions for purifying edible oil
US6638551B1 · kind B1 · utility
33Cited by
15References
44Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 5, 2002 |
| Grant date | Oct 28, 2003 |
| Priority date | — |
| Expiry date | Mar 5, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11B3/10
- WIPO fieldFood chemistry
- WIPO sectorChemistry
Abstract
The invention relates to methods and compositions for removing contaminants from edible cooking oils. Reduction in the accumulation of contaminants such as polar materials, free fatty acids, metals, color bodies, and soaps is achieved by treating the oil with a composition containing effective amounts of silica, acidic alumina, clay and citric acid. Removal of contaminants from oil according to the methods and compositions of the invention improves the quality of the oil and reduces costs as well as various health and safety concerns associated with the production of fried foods.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.