Stephen Pietsch,Seth DeBolt,Jiayi Yang,Stefan Bauer
申请号：
US15692309
公开号：
US20180055067A1
申请日:
2017.08.31
申请国别(地区):
US
年份:
2018
代理人:
摘要：
A system and method for producing a caramel food colorant according to one example embodiment exhibits improved stability against precipitation and provides a rich brown color. The colorant is particularly useful for modifying the color of alcoholic beverages but has many other potential uses, including uses as an antioxidant. The novel caramel food colorant is produced from a variety of Sorghum bicolor that accumulates deoxyanthocyanidins in the leaves, and varieties that accumulate deoxyanthocyanidins in seed bran. The pigments are extracted from the leaves or bran in acidified water or a solution containing water, alcohol and acid, the pH is then adjusted to basic pH, the solution is briefly heated, then the pigment is used without further purification or purified by adsorption to a commercially available hydrophobic resin, and eluted from the resin with a solution containing water and alcohol.
