Colorant compositions and methods of use thereof
AssigneeMars, Incorporated
InventorsRebecca J. Robbins, Thomas M. Collins, Maria Monica Giusti, Gregory Sigurdson
Life of this patent
Estimating the term…
Abstract
Natural blue colorant compositions and methods of use thereof are provided. The colorant compositions include at least one acylated anthocyanin, such as a diacylated anthocyanin. The colorant composition can further include a buffer solution having a pH from about 6.0 to about 8.0 and a metal ion or salt form thereof. The colorant compositions can be derived from a natural product and provide a stable, blue colorant that can be used in food products.
Claims35
A natural blue colorant composition, comprising:
- a) a fraction of a natural juice or extract comprising at least one acylated anthocyanin;
- b) a buffer solution, wherein the buffer solution has a pH of from about 6.0 to about 8.0;
- and
- c) a metal ion or salt thereof.
A natural blue colorant composition, comprising:
- a) a fraction of a natural juice or extract comprising at least one diacylated anthocyanin selected from the group consisting of
- and salt forms thereof, and combinations thereof, wherein the diacylated anthocyanin has a concentration of from about 1 μM to about 200 μM;
- b) a buffer solution, wherein the buffer solution has a pH of from about 7.0 to about 8.0;
- and
- c) a metal ion comprising Fe3+ or a salt form thereof, wherein the metal ion has a concentration of from about 0.25 to about 0.5 times the concentration of the diacylated anthocyanin.
A natural blue colorant composition, comprising:
- a) a fraction of a natural juice or extract comprising at least one diacylated anthocyanin selected from the group consisting of
- and salt forms thereof, and combinations thereof, wherein the diacylated anthocyanin has a concentration of from about 1 μM to about 200 μM;
- b) a buffer solution, wherein the buffer solution has a pH of from about 7.0 to about 8.0;
- and
- c) a metal ion comprising Al3+ or a salt form thereof, wherein the metal ion has a concentration of less than or equal to the concentration of the diacylated anthocyanin.
A method of preparing a natural blue colorant composition, comprising:
- a) obtaining a fraction of a natural juice or extract comprising at least one acylated anthocyanin from a natural product;
- b) diluting the acylated anthocyanin in a buffer solution having a pH of from about 6.0 to about 8.0;
- and
- c) admixing a metal ion or salt thereof in the buffer solution.
Dependencies are inferred from the claim text.