Process for concentrating and isolating a beet colorant
US4409254A · kind A · utility
28Cited by
1References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 29, 1980 |
| Grant date | Oct 11, 1983 |
| Priority date | — |
| Expiry date | Sep 29, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B67/0096
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process is disclosed for isolating and concentrating a natural colorant of bland taste found in plants containing betanin. The process involves adjusting the pH of an aqueous extract of the betanin-containing plant to the isoelectric point of betanin, contacting the pH-adjusted extract with a non-ionic adsorbent to concentrate the betanin pigment on the adsorbent, eluting the adsorbent to remove the betanin pigment, and separating the pigment from the eluting agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.