Patent ID: 8425960

Claim:
A coloring composition having a blue hue comprising at least one modified anthocyanin which is the reaction product of an anthocyanin that is a natural product of plant origin and at least one aldehyde, wherein the anthocyanin is a compound of formula (I): wherein R 3 ′, R 4 ′ and R 5 ′ are independently H, OH, or OCH 3 and R 3 and R 5 are independently H or an acetylated or non-acetylated glycoside, and wherein the at least one aldehyde is selected from the group consisting of furaldehyde, glyoxylic acid, butyraldehyde, valeraldehyde, and isovaleraldehyde, and wherein the modified anthocyanin has a reduction in b* of at least 5 units compared to the unmodified anthocyanin.