Method of preparing a purified purple corn coloring agent

Details Method of preparing a purified purple corn coloring agent Method of preparing a purified purple corn coloring agent

2007-03-20

2007-03-20

Douyon, Lorna M. (Department: 1751)

Bleaching and dyeing; fluid treatment and chemical modification

Process of extracting or purifying of natural dye

C008S636000, C008S646000, C210S651000

Reexamination Certificate

active

10502058

ABSTRACT:
A method of preparing a purified purple corn coloring agent comprising passing a purple corn color extract solution through an adsorption resin, washing with water, and releasing the purple corn color from the resin with the use of an aqueous solution containing alcohol of 25 to 45 v/vt %.

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