Natural red coloring matter and its processing method

Details Natural red coloring matter and its processing method Natural red coloring matter and its processing method

1991-10-03

1993-11-23

Rollins, John W.

Drug, bio-affecting and body treating compositions

Antigen, epitope, or other immunospecific immunoeffector

Conjugate or complex

426253, A61K 3578

Patent

active

052642127

ABSTRACT:
Impurities containing a pungent taste component are removed from a hot red pepper oleoresin as a starting material therefrom by a supercritical gas extraction method using a carbon dioxide as an extracting reagent, and the extraction residue is used as a red coloring matter. Even when the hot red pepper is used as the raw material, the invention can provide a natural red coloring matter evaluated as having "no pungent taste" by an organoleptic test. When the natural red coloring matter is prepared from the hot red pepper as the raw material by the supercritical gas extraction method, the invention can drastically reduce the gas pressure of the extracting reagent in comparison with the prior art.

REFERENCES:
patent: 4400398 (1983-08-01), Coenen et al.

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