Food colorant system
US5002789A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Apr 17, 1989 |
| Grant date | Mar 26, 1991 |
| Priority date | — |
| Expiry date | Apr 17, 2009 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA23L5/42
- WIPO fieldFood chemistry
- WIPO sectorChemistry
Abstract
A coloring system and method for use is provided. The coloring system comprises a diluent and colorant in particle form. The dilution ratio and particle size can be utilized to control the color of the system during distribution and storage. The colorant can be any desired color, for example, brown, red, etc., and the system can be made such that it is generally invisible when applied to the product. When the food product with the associated coloring system is exposed to heat, e.g. radiation, the colorant becomes visible providing color to the food product in a preselected region. A carrier can also be provided in the coloring system to provide shelf life stability to the coloring system when the coloring system is applied to the food prior to distribution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.