C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
C07D 491/048 (2006.01) A23L 1/275 (2006.01) C07K 5/075 (2006.01) C09B 61/00 (2006.01)
Patent
CA 2043150
"WATER-SOLUBLE COLORED PIGMENTS FROM MONASCORUBRIN AND RUBROPUNCTATIN AS FOOD COLORANTS" The orange, WATER-INSOLUBLE pigments monascorubrin and rubropunctatin elaborated by Monascus species can be converted to high purity red, water-soluble pigments by reaction with stoichiometric quantities of organic materials bearing a primary amine functionality or to high purity yellow, water-soluble pigments by reaction with stoichiometric quantities of organic materials having a primary amine functionality followed by reduction of the ring carbonyl moiety to a hydroxyl group. These red pigments are suitable as colorants for a broad variety of edible formulations, especially those intended for human consumption, and often serve as suitable replacements for FD&C Red No. 2 and Red No. 4. The yellow pigments aredesirable food colorants which are effective at levels which impart no objectional taste to foods.
Kurek Paul R.
Rohrbach Ronald P.
Schumacher Elaine F.
St. Martin Edward J.
Kurek Paul R.
Macrae & Co.
Rohrbach Ronald P.
Schumacher Elaine F.
St. Martin Edward J.
LandOfFree
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