Colorant compounds derived from genipin or genipin containing materials
The present disclosure provides colorant compounds and methods of isolation of the colorant compounds derived from a reaction of genipin and an amine. The colorant compositions comprise purified compounds (e.g., a purified polymer or a purified dimer) obtained from multiple fractioning by chromatography of the reaction resulting material. The purified polymer or dimer can be used as a colorant by itself or in combination with another colorant for imparting color to a food, a drug, a cosmetic, a medical device, and textile products.
1. A method of preparing of a purple colorant composition comprising
(a) isolating mesocarps from Genipa americana fruit;
(b) preparing a juice extract from the mesocarps, wherein the juice extract comprises a geniposide;
(c) mixing the juice extract and glycine;
(d) after (c), heating the mixture of juice and glycine; and
(e) isolating a purple colorant composition after (d).
2. A method of preparing of a purple colorant composition comprising
(a) isolating mesocarps from Genipa americana fruit;
(b) isolating geniposide from the mesocarps;
(c) mixing the geniposide and glycine; and
(d) isolating a purple colorant composition after (c).
3. A colorant composition prepared by the method of claim 1 .
4. A food product comprising a food item and a colorant composition prepared by the method of claim 1 .
5. A medical device colored by a colorant composition prepared by the method of claim 1 .
6. A drug or nutraceutical product comprising a drug or nutraceutical and a colorant composition prepared by the method of claim 1 .
7. The drug or nutraceutical product of claim 6 , wherein the drug or nutraceutical is in a dosage form selected from the group consisting of tablets, gel caps, beads, pellets, pills, dragees, lozenges, ointments, capsules, powders, liquids, gels, syrups, slurries, and suspensions.
8. A cosmetic product comprising a colorant composition prepared by the method of claim 1 .
9. A colorant composition prepared by the method of claim 2 .
10. A food product comprising a food item and a colorant composition prepared by the method of claim 2 .
11. A medical device colored by a colorant composition prepared by the method of claim 2 .
12. A drug or nutraceutical product comprising a drug or nutraceutical and a colorant composition prepared by the method of claim 2 .
13. The drug or nutraceutical product of claim 12 , wherein the drug or nutraceutical is in a dosage form selected from the group consisting of tablets, gel caps, beads, pellets, pills, dragees, lozenges, ointments, capsules, powders, liquids, gels, syrups, slurries, and suspensions.
14. A cosmetic product comprising a colorant composition prepared by the method of claim 2 .